Product data & tolerance details at a glance

Bearing tolerances

Roller bearing tolerances guarantee interchangeability. The DIN 620 standard specifies dimensional and running tolerances. Bearings are usually produced in the PN tolerance class, but the remaining tolerance classes can be manufactured and delivered upon request or may be chosen depending on the case of application.

Dimensional letters and formulae according to DIN ISO 1132, DIN 620

Hole diameter

dNominal bore diameter
dsSingle bore diameter
dspSingle bore diameter in a single plane
ΔdsDeviation of a single bore diameter, difference between a single bore and the nominal bore diameter,
Δds = ds – d
Vdsbore diameter variation, difference between maximal and minimal single bore diameter of a single ring,
Vds = dsmax – dsmin
dmmean bore diameter, arithmetic mean of the maximal and minimal single bore diameter of a single ring,
dm = (dsmax + dsmin)/2
Δdmdeviation of mean bore diameter, difference between mean
bore diameter and nominal bore diameter,
Δdm = dm – d
dmpmean bore diameter in a single plane, arithmetic mean of the maximal and minimal single bore diameter detectable in a radial plane,
dmp = (dspmax + dspmin)/2
d1mpmean theoretical large diameter at tapered bore, arithmetic mean of maximal and minimal measured bore diameter
Δdmpdeviation of the mean bore diameter in a single plane, difference between mean bore diameter and nominal diameter in a radial plane,
Δdmp = dmp – d
Vdpvariation of a single bore diameter in a single plane, difference between the maximal and minimal bore diameter detectable in a radial plane,
Vdp = dpmax – dpmin
Vdmpvariation of mean bore diameter, difference between maximal and minimal average detectable each in single radial plane bore diameter at a single ring,
Vdmp = dmpmax – dmpmin
Vdp/2roundness in a plane

Outside diameter

Dnominal outside diameter
Dssingle outside diameter
Dspsingle outside diameter in a single plane
ΔDsdeviation of the single outside diameters, difference between a single outside diameter and the nominal outside diameter,
ΔDs = Ds – D
VDsvariation of outside diameter, difference between maximal and minimal single outside diameter of a single ring,
VDs = Dsmax – Dsmin
Dmmean outside diameter, arithmetic mean of the maximal and minimal single outside diameter of a single ring,
Dm = (Dsmax + Dsmin)/2
ΔDmDeviation of the mean outside diameter, difference between the mean outside diameter and the nominal outside diameter,
ΔDm = Dm – D
Dmpmean outside diameter in a single plane, arithmetic mean of the maximal and minimal single outside diameter detectable in a radial plane,
Dmp = (Dspmax + Dspmin)/2
ΔDmpdeviation of the mean outside diameters in a single plane, difference between mean outside diameter and the nominal outside diameter in a single radial plane,
ΔDmp = Dmp – D
VDpvariation of a single outside diameter in a single plane, difference between maximal and minimal single outside diameter detectable in a single radial plane,
VDp = Dpmax – Dpmin
VDmpvariation of mean outside diameters, difference between the maximal and minimal mean outside diameter, each detectable in single radial planes, at a single ring,
VDmp = Dmpmax – Dmpmin
VDp/2roundness in one plane

Variation of wall thickness

Kivariation of wall thickness between inner ring raceway and bore, difference between maximal and minimal radial space between bore surface and raceway on the outer side of the inner ring, in raceway middle
Kevariation of wall thickness between outer ring raceway and outer ring surface, difference between maximal and minimal radial space between outside surface and the raceway on the inner side of the outer ring, in raceway middle

Radial runout

Kiaradial runout of inner ring at assembled bearing, difference between maximal and minimal radial space between bore surface of inner ring, in different angular position of inner ring, and a fixed point related to the outer ring
Kearadial runout of outer ring at assembled bearing, difference between maximal and minimal radial space from/ between the outside surface of the outer ring, in different angular position of the outer ring, and a fixed point related to the inner ring

Lateral runout

SdThrust of inner ring side surface to bore
SDInclination variation of surface line to the reference of side surface

Axial runout

SiaAxial runout of the inner ring on the assembled bearing, difference between the maximum and minimum axial space between the reference side surface of the inner ring, in various angular locations of the inner ring, in radial space from/ to the inner ring axis being equal to the half race way diameter of the inner ring and in a fixed point related to the outer ring
SeaAxial runout of the outer ring on the mounted bearing, difference of the maximal and minimal axial space between the reference side surface of the outer ring in various angular locations of the outer ring, in radial space to the outer ring axis equal to the half raceway diameter of the outer ring and a fixed point related to the inner ring

Width

BNominal width of inner ring
CNominal width of outer ring
BsSingle inner ring width
CsSingle outer ring width
ΔBsDeviation of the single inner ring width, difference between a single inner ring width and the nominal width of the inner ring,
ΔBs = Bs – B
ΔCsDeviation of the single outer ring width, difference between a single outer ring width and the nominal outer ring width,
ΔCs = Cs – C
VBsVariation of inner ring width, difference between the maximal and minimal real single ring width of a single inner ring,
VBs = Bsmax – Bsmin
VCsvariation of outer ring width, difference between the maximal and minimal real single ring width of a single outer ring,
VCs = Csmax – Csmin
Bmmean inner ring width, arithmetic mean of the maximal and minimal single ring width detectable at an outer ring,
Bm = (Bsmax + Bsmin)/2
Cmmean outer ring width, arithmetic mean of the maximal and minimal single ring width detectable at an outer ring,
Cm = (Csmax + Csmin)/2

Corner width

rnominal corner width
rssingle corner width
rsminminimum single corner width, minimum permissible radial and axial single corner width of a ring
rsmaxmaximum single corner width, maximum permissible radial and axial single corner width of a ring

Symbols and nomenclature according to ABMA 26.2

dnominal bore diameter
dapsingle plane average bore diameter
∆dapsingle plane average bore diameter deviation
Dnominal outside diameter
Dapsingle plane average outside diameter
∆Dapsingle plane average outside diameter deviation
Bnominal inner ring width
Bssingle inner ring width
∆Bsdeviation of a single inner ring width
Cnominal outer ring width
Cssingle outer ring width
∆Csdeviation of a single outer ring width
Kiainner ring raceway to bore thickness variation
Keaouter ring raceway to outside surface thickness variation
Siaraceway parallelism with inner ring face
Searaceway parallelism with outer ring face
rs minsmallest single chamfer dimension

Prefix, general

Cball bearings: rolling elements made of ceramic
HCroller bearings and spindle bearings : rolling elements made of ceramic
Srolling elements made of stainless steel
Xouter and inner ring made of Cronidur®
XCouter and inner ring made of Cronidur®, rolling elements made of ceramic

Suffices, general

Inner design

EReinforced design
A, B, C, DThe meaning/ content of these characteristics positioned immediately after the basic characteristic is not defined in detail. They are used according to need to identify/ mark changes in bearing design and to change specific design properties. In general, their use is limited in time to avoid misunderstandings during the transition period.

Outer shape

HRShalf rolling element quantity
Kbearing with tapered bore; taper 1:12
K30bearing with tapered bore; taper 1:30
K.Nbearing with tapered bore, circular groove on outer ring on the side with small taper diameter
Ncircular groove for retainer ring on outer ring
N1One locking groove on outer ring or in housing washer
N2Two locking grooves on one side of the outer ring or in housing washer
N3One locking groove on one side, circular groove for retainer ring on the other side
N4Two locking grooves on one side, circular groove for retainer ring on the other side
N5one locking groove and circular groove for retainer ring on one side
N6two locking grooves and circular groove for retainer ring on one side
N.TVHcircular groove for retainer ring on outer ring, snap cage made of polyamide PA66, cage bottom located/ lying on the opposite side
NB.TVHcircular groove for retainer ring at outer ring, snap cage made of polyamide PA66, cage bottom located/ lying at the same side
NRcircular groove for retainer ring at outer ring with connected retainer ring
NR.TVHcircular groove for retainer ring on outer ring with connected retainer ring, snap cage made of polyamide PA66, cage bottom located/ lying at the opposite side
NBR.TVHcircular groove for retainer ring on outer ring with connected retainer ring, snap cage made of polyamide PA66, cage bottom located/ lying on the same side
Rbearing with flange on outer ring
RSRbearing with packing disk on one side without joint gap at inner ring shoulder
.2RSRbearing with 2 packing disks without joint gap at inner ring shoulder
RSDbearing with packing disk on one side and joint gap at inner ring shoulder
.2RSDbearing with 2 packing disks and joint gap at inner ring shoulder
RSRNBbearing with packing disk and circular groove on outer ring located/ lying on the same side
RSRNBRbearing with packing disk and circular groove on outer ring located/ lying on the same side with connected retainer ring
RSRNbearing with packing disk on one side and circular groove on the surface of outer ring located/ lying on the opposite side
RSRNRbearing with packing disk on one side and circular groove on the surface of outer ring located/ lying at the opposite side and inserted retainer ring
VSRbearing with packing disk made of FKM (fluorinated rubber) on one side without joint gap at inner ring shoulder
.2VSRbearing with 2 packing disks made of FKM without joint gap at inner ring shoulder
Sdouble row bearing with circumferential groove and at least 3 grease/ lubricating bores in outer ring
W33oil groove on outer ring and 3 grease/ lubricating bores distributed along circumference for self-aligning roller bearings
ZRbearing with shield on one side
.2ZRbearing with 2 shields
ZRNbearing with shield on one side and circular groove on the outer ring‘s surface located/ lying on the opposite side
ZRNRbearing with shield on one side and circular groove on the outer ring‘s surface located/ lying on the opposite side, and inserted retainer ring
.2ZRNbearing with 2 shields and circular groove on the outer ring’s surface
ZRNBbearing with shield and circular groove on outer ring located/ lying on the same side
ZRNBRbearing with shield and circular groove on outer ring located/ lying on the same side with connected retainer ring

Cages

Cage materials

Jcage made of steel sheet
Ypressed metal cage made of brass
Msolid cage made of brass
Fsolid cage made of steel or special castings
Lsolid cage made of light metal
Tsolid cage made of laminated fabric
TNsolid cage made of polyamide (PA66)
TVsolid cage made of fiberglass reinforced polyamide (PA66-GF..)
ENsolid cage made of PEEK (polyetheretherketone)
EVsolid cage made of fiberglass reinforced PEEK

Cage design types

Pwindow-shaped cage
Hsnap cage
Aguide on outer ring
Bguide on inner ring
Swith oil grooves on guiding surfaces

Cage variants

for solid cage made of steel or special castings
Cdouble row steel cage with fixed middle shoulder for self-aligning roller bearings
Fguided by rolling elements
FAguide on outer ring
FASguide on outer ring, with oil grooves
FBguide on inner ring
FBSguide on inner ring, with oil grooves
FPwindow-shaped cage, guided by rolling elements
FPAwindow-shaped cage, guide on outer ring
FPASwindow-shaped cage, guide on outer ring, with oil grooves
FPBwindow-shaped cage, guide on inner ring
FPBSwindow-shaped cage, guide on inner ring, with oil grooves
for solid cages made of light metal
Lguided by rolling elements
LAguide on outer ring
LASguide on outer ring, with oil grooves
LBguide on inner ring
LBSguide on inner ring, with oil grooves
LPwindow-shaped cage, guided by rolling elements
LPAwindow-shaped cage, guide on outer ring
LPASwindow-shaped cage, guide on outer ring, with oil grooves
LPBwindow-shaped cage, guide on inner ring
LPBSwindow-shaped cage, guide on inner ring, with oil grooves
for solid cages made of brass
Mguided by rolling elements
MAguide on outer ring
MASguide on outer ring, with oil grooves
MBguide on inner ring
MBSguide on inner ring, with oil grooves
MSGuide on the sleeve/ bush, with oil grooves
MPwindow-shaped cage, guided by rolling elements
MPAwindow-shaped cage, guide on outer ring
MPASwindow-shaped cage, guide on outer ring, with oil grooves
MPBwindow-shaped cage, guide on inner ring
MPBSwindow-shaped cage, guide on inner ring, with oil grooves
for solid cages made of laminated fabric
Tguided by rolling elements
TAguide on outer ring
TBguide on inner ring
THAsnap cage, guide on outer ring
THBsnap cage, guide on inner ring
TPwindow-shaped cage, guided by rolling elements
TPAwindow-shaped cage, guide on outer ring
TPBwindow-shaped cage, guide on inner ring
for solid cages made of fiberglass reinforced polyamide (PA66-GF..)
TVguided by rolling elements
TVAguide on outer ring
TVBguide on inner ring
TVHsnap cage, guided by rolling elements
TVPwindow-shaped cage, guided by rolling elements
for cages made of steel sheet
Jguided by rolling elements
JLguided by rolling elements
JNguided by rolling elements
JSguided by rolling elements
JHsnap cage, guided by rolling elements
JPwindow-shaped cage, guided by rolling elements
JPAwindow-shaped cage, guide on outer ring
for pressed metal cages made of brass
Yguided by rolling elements
YNguided by rolling elements
YHsnap cage, guided by rolling elements
YPwindow-shaped cage, guided by rolling elements
YPBwindow-shaped cage, guide on inner ring
for cages made of PEEK
ENguided by rolling elements
ENPwindow-shaped cage, guided by rolling elements
ENPAwindow-shaped cage, guide on outer ring
ENPBwindow-shaped cage, guide on inner ring
ENHsnap cage, guided by rolling elements
for cages made of PEEK (fiberglass reinforced)
EVguided by rolling elements
EVPwindow-shaped cage, guided by rolling elements
EVPAwindow-shaped cage, guide on outer ring
EVPBwindow-shaped cage, guide on inner ring
EVHsnap cage, guided by rolling elements

Accuracy

PN (P0)bearing with normal tolerance
P2bearing with highest dimensional, shape, and running accuracy (higher than P4) according to the ISO-tolerance class 2
P4bearing with extra-high dimensional, shape, and running accuracy (higher than P5) according to the ISO-tolerance class 4
P5bearing with extra-high dimensional, shape, and running accuracy (higher than P6) according to the ISO-tolerance class 5
P6bearing with increased dimensional, shape, and running accuracy (higher than PN) according to the ISO-tolerance class 6
P63bearing with increased dimensional, shape, and running accuracy (higher than PN) according to the ISO-tolerance class 6 and clearance C3, greater than CN

Clearance

The values CN, C2, C3 and C4 are according to DIN 620-4. The values for C5 are according to ISO 5763.

CN (C0)clearance greater than C2 and smaller than C3 is normal
C2clearance less than CN
C3clearance greater than CN
C4clearance greater than C3
C5clearance greater than C4

Special details

AAxial clearance in μm e. g.: 7210B.MP.A100.150 (axial clearance from 100 μm to 150 μm)
RRadial clearance in μm e. g.: 6210.R10.30 (radial clearance from 10 μm to 30 μm)
VAaxial preload in μm e. g.: 6210.VA10.20 (axial preload from 10 μm to 20 μm)
VRradial preload in μm e. g.: QJ210.VR13.25 (radial preload from 13 μm to 25 μm)

Current-insulating bearings

J20AOuter ring is coated with nonconducting oxide ceramic (cemented oxide).
dielectric strength is 500V.
J20ABInner ring is coated with nonconducting oxide ceramic.
dielectric strength is 500V.
J20A1Outer ring is coated with nonconducting oxide ceramic.
dielectric strength is 1000V.
J20A1BInner ring is coated with nonconducting oxide ceramic.
dielectric strength is 1000V.

Heat treatment

Temperature limit for use

If unmarked with a symbol number, the bearing corresponds to the standard design S0, meaning that SLF roller bearings are subjected to heat treatment that keeps them stable in size up to a working temperature of 150 °C.

S0Bearings whose rings or disks are stabilized for working temperatures up to 150 °C.
S1Bearings whose rings or disks are stabilized for working temperatures up to 200 °C.
S2Bearings whose rings or disks are stabilized for working temperatures up to 250 °C.
S3Bearings whose rings or disks are stabilized for working temperatures up to 300 °C.
S4Bearings whose rings or disks are stabilized for working temperatures up to 350 °C.
S0BBearings whose inner rings or shaft rings are stabilized for working temperatures up to 150 °C.

Suffix spindle bearings / angular contact ball bearings

Contact angle

B40°
C15° (except: 17° for series BS70..C and BS719..C)
D20°
E25°

Sealing

.2RSDsealed on both sides and greased
RSDOsealed on one side, disk on the side of the large outer ring-shoulder-diameter, ungreased
RSDXsealed on one side, disk on the side of small outer ring-shoulder-diameter, ungreased

Cage

JPwindow-shaped cage made of steel sheet, guided by rolling elements
MPwindow-shaped cage made of brass, guided by rolling elements (predominantly for angular contact ball bearings)
T / TPAwindow-shaped cage made of laminated fabric, guide on outer ring (predominantly for spindle bearings )
TVPwindow-shaped cage made of fiberglass reinforced polyamide, guided by rolling elements (predominantly for angular contact ball bearings)

Accuracy

HGtolerances of the outer dimensions and running tolerances, lying between the accuracy classes P2 and P4
P2accuracy class according to DIN 620
P4accuracy class according to DIN 620
P4Sstandard according to plant guideline
P4S.K5P4S, but with diminished tolerance for bore and outer diameter

Direct lubrication

DLRCirculating circular groove and radial feed bore, as well as two circular grooves with O rings at outer diameter
SB1Grease/ lubricating bore in outer ring for direct lubrication

Preload, lateral aligning for single bearings in universal design

ULSingle bearing in universal design with slight preload
UMSingle bearing in universal design with medium preload
USsingle bearing in universal design with heavy preload
Ubearing with special preload, in N
UOsingle bearing in universal design with smallest possible clearance (without preload)
UAsingle bearing in universal design with axial clearance, in µm

Bearing sets

Number of bearings in the set

first letter

D2 pces (Duplex)
T3 pces (Triplex)
Q4 pces (Quadroplex)
P5 Stück (Pentaplex)
S6 pces (Sestroplex)

Adjustment of bearings in set

second and possibly following letter

BO arrangement (back to back)
BCO adjustment, tandem pair against 2, 3 or 4-piece tandem set
BTO adjustment against 2, 3 or 4-piece tandem set
FX arrangement (face to face)
FCX adjustment, tandem pair against 2, 3 or 4-piece tandem set
FTX adjustment against 2-, 3 or 4-piece tandem set
TTandem arrangement
UUniversal

Preload

last letter

LBearing set with slight preload
MBearing set with medium preload
SBearing set with heavy preload

Radial clearance

Single and double row deep groove ball bearings with cylindrical bore

Bore ø dRadial clearance in µm
in mmC2CNC3C4C5
greater thantomin.max.min.max.min.max.min.max.min.max.
6100721382314292037
101809318112518332545
1824010520132820362848
2430111520132823413053
3040111620153328464064
4050111623183630514573
5065115828234338615590
658011510302551467165105
8010011812363058538475120
10012022015413666619790140
1201402231848418171114105160
1401602231853469181130120180
16018022520615310291147135200
180200230257163117107163150230
200225235258575140125195175265
225250240309585160145225205300
2502802453510590170155245225340
28031525540115100190175270245370
31535536045125110210195300275410
35540037055145130240225340315460
40045038060170150270250380350510
45050039070190170300280420390570
5005601010080210190330310470440630
5606301011090230210360340520490700
63071020130110260240400380570540780
71080020140120290270450430630600860
80090020160140320300500480700670960
9001000201701503503305505307707401040
10001120201801603803606005808508201150
11201250201901704103906506309208901260

Single and double row deep groove ball bearings with tapered bore

Bore ø dRadial clearance in µm
in mmC2CNC3C4C5
greater thantomin.max.min.max.min.max.min.max.min.max.
1,530414923183327474064
30406161128234035554875
40509201532274540625485
5065122520393454487365100
6580153025474266609080125
8010018353055507870110100150
10012022403560558580130120180
1201402248417065114105160150220
1401602253468175130115175165240
1601802261539890147130200190275
180200257163117107163150230215315
200225288273132120187175255240350
225250319287152140217205290275400
250280369797162152237225320305440
28031542110110180175260260360345490
31535550120120200200290290405390560
35540060140140230230330330460440630
40045070160160260260370370520500710
45050080180180290290410410570550780
50056090200200320320460460630610860
560630100220220350350510510700680960
6307101202502503903905605607807601070
7108001302802804404406206208608401180
8009001503103104904906906909609401320
9001000160340340540540760760104010201430
10001120170370370590590840840112011001530
11201250180400400640640910910122012001670

Self-aligning ball bearings with cylindrical bore

Bore ø dRadial clearance in µm
in mmC2CNC3C4C5
greater thantomin.max.min.max.min.max.min.max.min.max.
2,5618515102015252133
61029617122519332742
1014210619132621353048
1418312821152823373250
18244141023173025393452
24305161124193529464058
30406181329234034534666
40506191431254437575071
50657211636305045696288
658082418403560548376108
8010092722484270649689124
10012010312556508375114105145
120140103830686010090135125175
1401601544358070120110161150210
1601801550409282138126185170240
18020017574710593157144212197277
200225186250115100170155230210295
225250207057130115195175255230320
250280237865145125220200295260355
280315279075165145250230335300410
3153553210085185165285260380335465
3554003511090205185325295430385535
40045038125100230205345315465415585
45050040135110255230380345510450645

Self-aligning ball bearings with tapered bore

Bore ø dRadial clearance in µm
in mmC2CNC3C4C5
greater thantomin.max.min.max.min.max.min.max.min.max.
18247171326203328423755
24309201528233933504462
304012241935294640595272
405014272239335245655879
506518322747416156807399
6580233935575075699891123
8010029474268629084116109144
1001203556508175108100139130170
1201404068609890130120165155205
140160457465110100150140191180240
160180508575127117173161220205275
180200559585143131195182250235315
2002256310795160145215200275255340
22525070120107180165245230310290380
25028078133120200180275255350330425
28031587150135225205310280385355465
31535597165150250220340310430400530
355400105180160275245375335470430580
400450115200170300260400360510465635
450500120215180325275425380545490685

Cylindrical roller bearings with cylindrical bore

Bore ø dRadial clearance in µm
in mmC1*C2CNC3C4C5
greater thantomin.max.min.max.min.max.min.max.min.max.min.max.
010515025204535605075--
10245150252045356050756590
24305150252045356050757095
304051553025504570608580105
4050518535306050807010095125
506552010404070609080110110140
65801025104540756510090125130165
8010010301550508575110105140155190
10012010301555509085125125165180220
1201401035156060105100145145190200245
1401601035207070120115165165215225275
1601801040257575125120170170220250300
1802001545359090145140195195250275330
200225155045105105165160220220280305365
225250155045110110175170235235300330395
250280205555125125195190260260330370440
280315206055130130205200275275350410485
315355206565145145225225305305385455535
3554002575100190190280280370370460510600
4004502585110210210310310410410510565665
4505002595110220220330330440440550625735
50056025105120240240360360480480600705845
56063030115140260260380380500500620790950
630710301301452852854254255655657058601030
710800351401503103104704706306307909601150

* Class C1 is not interchangeable.

Cylindrical roller bearings with tapered bore

Bore ø dRadial clearance in µm
in mmC1*C2CNC3C4C5
greater thantomin.max.min.max.min.max.min.max.min.max.min.max.
0241525154030554065507575100
24301525204535604570558080105
30401525204540655580709595120
4050173025554575609075105105135
50652035306050807010090120120150
658025403570609585120110145145180
80100355540757010595130120155155190
1001204060509090130115155140180180220
120140457055100100145130175160205205250
140160507560110110160145195180230230280
160180558575125125175160210195245245295
180200609085140140195180235220275275330
200225609595155155215200260245305305365
22525065100105170170235220285270335335400
25028075110115185185255240310295365365435
28031580120130205205280265340325400400475
31535590135145225225305290370355435435515
355400100150165255255345330420405495495585
400450110170185285285385370470455555555655
450500120190205315315425410520505615615725
500560130210230350350470455575560680680800
560630140230260380380500500620620740740860
630710160260295435435575565705695835835975
7108001702903254854856456307907759359351095

* Class C1 is not interchangeable.

Self-aligning roller bearings with cylindrical bore

Bore ø dRadial clearance in µm
in mmC2CNC3C4C5
greater thantomin.max.min.max.min.max.min.max.min.max.
142410202035354545606075
243015252540405555757595
3040153030454560608080100
405020353555557575100100125
506520404065659090120120150
65803050508080110110145145180
80100356060100100135135180180225
100120407575120120160160210210260
120140509595145145190190240240300
14016060110110170170220220280280350
16018065120120180180240240310310390
18020070130130200200260260340340430
20022580140140220220290290380380470
22525090150150240240320320420420520
250280100170170260260350350460460570
280315110190190280280370370500500630
315355120200200310310410410550550690
355400130220220340340450450600600750
400450140240240370370500500660660820
450500140260260410410550550720720900
5005601502802804404406006007807801000
5606301703103104804806506508508501100
6307101903503505305307007009209201190
710800210390390580580770770101010101300
800900230430430650650860860112011201440
9001000260480480710710930930122012201570
1000112029053053077077010501050143014301820
1120125032058058084084011401140156015601990

Self-aligning roller bearings with tapered bore

Bore ø dRadial clearance in µm
in mmC2CNC3C4C5
greater thantomin.max.min.max.min.max.min.max.min.max.
182415252535354545606075
243020303040405555757595
3040253535505065658585105
405030454560608080100100130
506540555575759595120120160
65805070709595120120150150200
80100558080110110140140180180230
10012065100100135135170170220220280
12014080120120160160200200260260330
14016090130130180180230230300300380
160180100140140200200260260340340430
180200110160160220220290290370370470
200225120180180250250320320410410520
225250140200200270270350350450450570
250280150220220300300390390490490620
280315170240240330330430430540540680
315355190270270360360470470590590740
355400210300300400400520520650650820
400450230330330440440570570720720910
4505002603703704904906306307907901000
5005602904104105405406806808708701100
5606303204604606006007607609809801230
630710350510510670670850850109010901360
710800390570570750750960960122012201500
80090044064064084084010701070137013701690
900100049071071093093011901190152015201860
100011205407807801020102013001300165016502030
112012506008608601120112014201420180018002220

Axial clearance

Angular contact ball bearings incl. preload

Bore reference numberAxial clearance of bearing pair in µmPrestressing force in N
UAUOUL
70(B), 72B, 73B72B73B
Tolerance classes PN, P6, P5
0324077123
04280103146
05340112200
06340157250
07400208300
08400246385
09440277462
10440288535
11460358600
12460431692
13460492785
14500535877
15500523977
165006151077
175406921154
185408151231
195408921331
2054010541485
2158011001600
2258011771723
2458012771923
2660013542115
2860015082308
3060017232500
3260018152769
3470020383000

Tolerances of axial clearance and preload angular contact ball bearings

Bore reference number70B, 72B73B
Tolerance classes in µm
PN, P6P5PN, P6P5
Tolerance classes in µm
00 bis 09+8+6+8+6
10 bis 11+8+6+12+10
12 bis 34+12+10+12+10

Four-point contact bearings

Bore ø dAxial clearance in µm
in mmC2CNC3C4
greater thantomin.max.min.max.min.max.min.max.
181565509585130120165
1840257565110100150135185
4060358575125110165150200
60804510085140125175165215
801005511095150135190180235
10014070130115175160220205265
14018090155135200185250235300
180220105175155225210280260330
220260120195175250230305290360
260300135215195275255335315390
300350155240220305285370350430
350400175265245330310400380470
400450190285265360340435415510
450500210310290390365470445545
500560225335315420400505485595
560630250365340455430550530645
630710270395375490475600580705
710800290425405540520655635770
800900315460440585570715695840
9001000335490475630615770755910

Tolerances of radial bearings

Tolerance class PN

Inner ring (Dimensions in mm)
Nominal size hole diametergreater than1018305080120180250315400500630800
to183050801201802503154005006308001000
Tolerance class PN (Normal tolerance), (tolerances in µm)
Bore, cylindricalΔdmp0000000000000
Deviation-8-10-12-15-20-25-30-35-40-45-50-75-100
Variation (roundness) VdpDiameter series 7, 8, 9101315192531384450566394125
0, 181012192531384450566394125
2, 3, 468911151923263034385575
Intermediate diameter variationVdmp68911151923263034385575
Bore, taper 1:12Δdmp+18+21+25+30+35+40+46+52+57+63+70+80+90
Deviation0000000000000
Schwankung (Rundheit)Vdp111316192240465257637094125
Bore, taper 1:30Δdmp+15+20+25+30+35+40+45+50+75+100
Deviation0000000000
Variation (roundness)Vdp192240465257637094125
Width deviationΔBs0000000000000
-120-120-120-150-200-250-300-350-400-450-500-750-1000
Width deviation, modifiedΔBs000000000
-250-250-250-380-500-500-500-500-630
Width variationVBs20202025253030354050607080
RoundnessKia781010131820253035404550
ThrustSd20202025253030354045506070
ThrustSia2025253035405055657585100120
Outer ring (Dimensions in mm)
Nominal size outer diametergreater than1830508012015018025031540050063080010001250
to305080120150180250315400500630800100012501600
Tolerance class PN (Normal tolerance), (tolerances in µm)
DeviationΔDmp000000000000000
-9-11-13-15-18-25-30-35-40-45-50-75-100-125-160
Variation (roundness) VDpDiameter series 7, 8, 9121416192331384450566394125155200
0, 191113192331384450566394125155200
2, 3, 478101114192326303438557594120
Sealed bearing12162026303844526068
Intermediate diameter variationVDmp781011141923263034385575
RoundnessKea9101318202325303540506075100100
Inclination variationSD202022252828334045556575085100120
ThrustSea25283238455060708090110130150180220

Die Breitentoleranzen ∆Cs und VCs sind identisch mit ∆Bs und VBs für den zugehörigen Innenring.

Tolerance class P6

Inner ring (Dimensions in mm)
Nominal size hole diametergreater than1018305080120180250315400500630800
to183050801201802503154005006308001000
Tolerance class P6, (tolerances in µm)
DeviationΔdmp0000000000000
-7-8-10-12-15-18-22-25-30-35-40-50-65
Variation (roundness) VdpDiameter series 7, 8, 99101315192328313844506480
0, 1781015192328313844506480
2, 3, 45689111417192326303850
Intermediate diameter variationVdmp5689111417192326303850
Width deviationΔBs0000000000000
-120-120-120-150-200-250-300-350-400-450-500-750-1000
Width deviation, modifiedΔBS000000000
-250-250-250-380-380-500-500-500-630
Width variationVBs20202025253030354045505560
RoundnessKia781010131820253035404550
ThrustSd12121215151818212530354045
ThrustSia12151517202327323845506070
Outer ring (Dimensions in mm)
Nominal size outer diametergreater than1830508012015018025031540050063080010001250
to305080120150180250315400500630800100012501600
Tolerance class P6, (tolerances in µm)
DeviationΔDmp000000000000000
-8-9-11-13-15-18-20-25-28-33-38-45-60-80-100
Variation (roundness) VDpDiameter series 7, 8, 910111416192325313541485675100125
0, 1891116192325313541485675100125
2, 3, 4678101114151921252934456075
Sealed bearing10131620253035424856
Intermediate diameter variationVDmp678101114151921252934456075
RoundnessKea910131820232530354050607585100
Inclination variationSD131313151818212530354045556575
ThrustSea1515161820232733404555658095110

Die Breitentoleranzen ∆Cs und VCs sind identisch mit ∆Bs und VBs für den zugehörigen Innenring.

Tolerance class P5

Inner ring (Dimensions in mm)
Nominal size hole diametergreater than1018305080120180250315400500630
to18305080120180250315400500630800
Tolerance class P5, (tolerances in µm)
DeviationΔdmp000000000000
-5-6-8-9-10-13-15-18-23-27-33-40
Variation (roundness) VdpDiameter series 7, 8, 956891013151823263240
0, 1, 2, 3, 44567810121418202430
Intermediate diameter variationVdmp3345578912141720
Width deviationΔBs000000000000
-80-120-120-150-200-250-300-350-400-450-500-750
Width deviation, modifiedΔBS000000000000
-250-250-250-250-380-380-500-500-630-630-800-800
Width variationVBs555678101315182226
RoundnessKia445568101315171922
ThrustSd7888910111315182226
ThrustSia7888910131520253035

The thrust values Sia are valid for deep groove ball bearings.

Outer ring (Dimensions in mm)
Nominal size outer diametergreater than1830508012015018025031540050063080010001250
to305080120150180250315400500630800100012501600
Tolerance class P5, (tolerances in µm)
DeviationΔDmp000000000000000
-6-7-9-10-11-13-15-18-20-23-28-35-40-50-65
Variation (roundness) VDpDiameter series 7, 8, 9679101113151820232835445470
0, 1, 2, 3, 45578810111415172126344054
Intermediate diameter variationVDmp3455678910121418233035
Width variationVCs556888101113151820242832
RoundnessKea678101113151820232530354045
Inclination variationSD88891010111313151820253035
ThrustSea8810111314151820232530354555

The width tolerances ΔCs and VCs are identical with ΔBs and VBs for the connected inner ring.The thrust values Sea are valid for deep groove ball bearings.

Tolerance class P4

Inner ring (Dimensions in mm)
Nominal size hole diametergreater than1018305080120180250315400500630
to18305080120180250315400500630800
Tolerance class P4, (tolerances in µm)
DeviationΔdmp000000000000
-4-5-6-7-8-10-12-15-19-23-26-32
Variation (roundness) VdpDiameter series 7, 8, 94567810121519222632
0, 1, 2, 3, 434556891214172024
Intermediate diameter variationVdmp22,533,5456810121316
Width deviationΔBs000000000000
-80-120-120-150-200-250-300-350-400-450-500-750
Width deviation, modifiedΔBs000000000000
-250-250-250-250-380-380-500
Width variationVBs2,52,534456810121417
RoundnessKia2,5344568810121316
ThrustSd3445567810121417
ThrustSia34455781012151821
Outer ring (Dimensions in mm)
Nominal size outer diametergreater than1830508012015018025031540050063080010001250
to305080120150180250315400500630800100012501600
Tolerance class P4, (tolerances in µm)
DeviationΔDmp000000000000000
-5-6-7-8-9-10-11-13-15-18-22-26-33-40-50
Variation (roundness) VDpDiameter series 7, 8, 95678910121315182226324050
0, 1, 2, 3, 445567891011141720263038
Intermediate diameter variationVDmp2,533,545567891113172025
Width variationVCs2,52,5345577891113151821
RoundnessKea455678101113151720232630
Inclination variationSD4445557810111315172023
ThrustSea555678101013151822263035

The width tolerances ΔCs and VCs are identical with ΔBs and VBs for the connected inner ring.

Tolerance class P4S

Inner ring (Dimensions in mm)
Nominal size hole diametergreater than01018305080120150180250315400
to1018305080120150180250315400500
Tolerance class P4S, (tolerances in µm)
DeviationΔdmp000000000000
-4-4-5-6-7-8-10-10-12-15-19-23
Variation (roundness) VdpDiameter series 8, 9445678101012151922
0, 2, 3334556889121417
Intermediate diameter variationVdmp222,533,5455681012
Width deviationΔBs000000000000
-40-80-120-120-150-200-250-250-300-350-400-450
Width deviation, modifiedΔBs000000000000
-250-250-250-250-250-380-380-380-500
Width variationVBs1,51,51,51,51,52,52,545678
RoundnessKia1,51,52,52,52,52,52,555678
ThrustSd1,51,51,51,51,52,52,545678
ThrustSia1,51,52,52,52,52,52,5557911
Outer ring (Dimensions in mm)
Nominal size outer diametergreater than1018305080120150180250315400500
to18305080120150180250315400500630
Tolerance class P4S, (tolerances in µm)
DeviationΔdmp000000000000
-4-5-6-7-8-9-10-11-13-15-18-22
Variation (roundness) VDpDiameter series 8, 9456789101113151822
0, 2, 33455678810111417
Intermediate diameter variationVDmp22,533,5455678911
Width variationVCs1,51,51,51,52,52,52,545778
RoundnessKea1,52,52,54555778911
Inclination variationSD1,51,51,51,52,52,52,545789
ThrustSea1,52,52,545557781012

The width tolerances ΔCs and VCs are identical with ΔBs and VBs for the connected inner ring.

Tolerance class P2

Inner ring (Dimensions in mm)
Nominal size hole diametergreater than1018305080120150180250315
to18305080120150180250315400
Tolerance class P2, (tolerances in µm)
DeviationΔdmp0000000000
-2,5-2,5-2,5-4-5-7-7-8-10-12
Variation (roundness)Vdp333457781012
Intermediate diameter variationVdmp1,51,51,522,53,53,5456
Width deviationΔBs0000000000
-80-120-120-150-200-250-300-350-450-600
Width deviation, modifiedΔBs0000000000
-250-250-250-250-380-380-380-500"
Width variationVBs1,51,51,51,52,52,54567
RoundnessKia1,52,52,52,52,52,55567
ThrustSd1,51,51,51,52,52,55567
ThrustSia1,52,52,52,52,52,55577
Outer ring (Dimensions in mm)
Nominal size outer diametergreater than18305080120150180250315400500
to305080120150180250315400500630
Tolerance class P2, (tolerances in µm)
DeviationΔdmp00000000000
-4-4-4-5-5-7-8-8-10-12-15
Variation (roundness)VDp44455788101216
Intermediate diameter variationVDmp2222,52,53,544568
Width variationVCs1,51,51,52,52,52,545778
RoundnessKea2,52,54555778911
Inclination variationSD1,51,51,52,52,52,545789
ThrustSea2,52,545557781012

The width tolerances ΔCs and VCs are identical with ΔBs and VBs for the connected inner ring.

Tolerance class P2S

Inner ring (Dimensions in mm)
Nominal size hole diametergreater than1018305080120
to18305080120150
Tolerance class P2S, (tolerances in µm)
DeviationΔdmp000000
-2-2-2,5-4-5-6
Variation (roundness) VdpDiameter series 8, 9223445
0, 2233345
Intermediate diameter variationVdmp22,533,545
Width deviationΔBs000000
-25-25-25-25-50-50
Width variationVBs111,31,322
RoundnessKia1,31,51,5222,5
ThrustSd1,31,31,31,322
ThrustSia1,322222,5
Outer ring (Dimensions in mm)
Nominal size outer diametergreater than18305080120150
to305080120150180
Tolerance class P2S, (tolerances in µm)
DeviationΔDmp000000
3,5-3,5-3,5-4-4-6
Variation (roundness) VdpDiameter series 8, 9444446
0, 2333445
Width variationVCs111,3222
RoundnessKea222,5333,5
Inclination variationSD1,31,31,32,52,52,5
ThrustSea223446

The width tolerances ΔCs and VCs are identical with ΔBs and VBs for the connected inner ring.

Tolerance class HG for Spindle bearings

Inner ring (Dimensions in mm)
Nominal size hole diametergreater than1018305080120150180250315
to18305080120150180250315400
Tolerance class HG, (tolerances in µm)
DeviationΔdmp0000000000
-4-4-4-5-5-9-10-10-12-16
Variation (roundness)Vdp44455810121618
Intermediate diameter variationVdmp44455810121618
Width deviationΔBs0000000000
-80-120-120-125-175-225-275-325-375-425
Width deviation, modifiedΔBs0000000000
-250-250-250-250-250-380-380-500
Width variationVBs22222,533,55,56,58,5
RoundnessKia22,52,52,52,535568
ThrustSd22222,52,555,568
ThrustSia22,52,52,5335679
Outer ring (Dimensions in mm)
Nominal size outer diametergreater than18305080120150180250315400500
to305080120150180250315400500630
Tolerance class HG, (tolerances in µm)
DeviationΔDmp00000000000
-4-4-4-5-5-8-9-9-11-17-22
Variation (roundness)VDp44455899111722
Intermediate diameter variationVDmp2222,52,5445578
Width variationVCs2222,52,534678,59,5
RoundnessKea2,52,545567891014,5
Inclination variationSD2222,52,54679911
ThrustSea2,52,545567891114,5

The width tolerances ΔCs and VCs are identical with ΔBs and VBs for the connected inner ring.

K5 tolerances of spindle bearings

Nominal size hole diametergreater than18305080120180250315
(Dimensions) in mmto18305080120180250315400
Tolerance classDeviation(tolerances in µm)
Δdmpfor bore
ΔDmpfor outer diameter
P4/P4SΔdmp-1-1,5-1,5-2-2-3-4-5-6
ΔDmp-3-3,5-4-5-5,5-7-8-11-13
HGΔdmp-1-1-1-1,5-2-2-2-2-3
ΔDmp-3-3-3-3,5-4-4-4-6-7
P2/P2SΔdmp000-1-1,5-2-2-3-4
ΔDmp-2-2-2-3-3,5-5-6-7-8

Tolerance class HP für double row high-precision cylindrical roller bearings

Inner ring (Dimensions in mm)
Nominal size hole diametergreater than18305080120180250315400500
to305080120180250315400500630
Tolerance class HP, (tolerances in µm)
Bore, cylindricalΔdmp0000000000
Deviation-6-8-9-10-13-15-18-23-27-30
Variation (roundness)Vdp3455789121415
Bore, taperedΔds10121520253035404550
Deviation0000000000
Variation (roundness)Vdp3455789121415
Intermediate diameter variationVdmp3455789121415
Width deviationΔBs0000000000
-120-120-150-200-250-300-350-400-450-500
Width variationVBs556781013151720
RoundnessKia3445688101012
ThrustSd8889101113151720
ThrustSia8889101315202325
Outer ring (Dimensions in mm)
Nominal size outer diametergreater than305080120150180250315400500630
to5080120150180250315400500630800
Tolerance class HP, (tolerances in µm)
DeviationΔDmp00000000000
-7-9-10-11-13-15-18-20-23-28-35
Variation (roundness)VDp455678910121418
Intermediate diameter variationVDmp455678910121418
Width variationVCs56888101113151820
RoundnessKea55678101113151720
Inclination variationSD8891010111313151820
ThrustSea810111314151820232530

The width tolerance ∆Cs is identical to ∆Bs for the corresponding inner ring.

Tolerance class HP for single row high-precision cylindrical roller bearings

Inner ring (Dimensions in mm)
Nominal size hole diametergreater than18305080120180250315400
to305080120180250315400500
Tolerance class HP, (tolerances in µm)
Bore, cylindricalΔdmp000000000
Deviation-6-8-9-10-13-15-18-23-27
Variation (roundness)Vdp34557891214
Bore, taperedΔds101215202530354045
Deviation000000000
Variation (roundness)Vdp34557891214
Intermediate diameter variationVdmp34557891214
Width deviationΔBs000000000
-100-120-150-200-250-300-350-400-450
Width variationVBs1,523345567
RoundnessKia34456891214
ThrustSd334456678
ThrustSia88891011152023
Outer ring (Dimensions in mm)
Nominal size outer diametergreater than305080120150180250315400500630
to5080120150180250315400500630800
Tolerance class HP, (tolerances in µm)
DeviationΔDmp00000000000
-7-9-10-11-13-15-18-20-23-28-35
Variation (roundness)VDp455678910121418
Intermediate diameter variationVDmp455678910121418
Width variationVCs5567781013151720
RoundnessKea55678101113151720
Inclination variationSD8891010111313151820
ThrustSea810111314151820232530

The width tolerance ∆Cs is identical to ∆Bs for the corresponding inner ring.

Toleranzklasse HP for double-acting axial angular contact ball bearings

Shaft washer (Dimensions in mm)
Nominal size hole diametergreater than18305080120150180250315400
to305080120150180250315400500
Tolerance class HP (tolerances in µm)
Bore DeviationΔdmp0000000000
-8-10-12-15-18-18-22-25-30-35
Variation (roundness)Vdp68911141417192226
Wall thickness variationSi3344555779
Height deviationΔHs5075100125150150175200250300
-150-200-250-300-350-350-400-450-600-750
Housing washer (Dimensions in mm)
Nominal size outer diametergreater than305080120150180250315400500630
to5080120150180250315400500630800
Tolerance class HP (tolerances in µm)
Outer diameter DeviationΔDmp-20-24-28-33-33-37-41-46-50-55-60
-36-43-50-58-58-66-73-82-90-99-110
Variation (roundness)ΔDp56899101213151618
Width deviationΔCs-120-120-125-125-125-125-150-150-200-200-250
Wall thickness variationSe3445557791113

Tolerance class UP for high-precision cylindrical roller bearings

Inner ring (Dimensions in mm)
Nominal size hole diametergreater than18305080120180250315400500
to305080120180250315400500630
Tolerance class UP, (tolerances in µm)
Bore, cylindricalΔdmp0000000000
Deviation-5-6-7-8-10-12-15-19-23-26
Variation (roundness)Vdp3344568101214
Bore, taperedΔds67810121415171920
Deviation0000000000
Variation (roundness)Vdp3455789121416
Intermediate diameter variationVdmp2,533,54568101213
Width deviationΔBs0000000000
-25-30-40-50-60-75-100-100-100-125
Width variationVBs1,5233455678
RoundnessKia1,5223344556
ThrustSd3344566789
ThrustSia333467891012
Outer ring (Dimensions in mm)
Nominal size outer diametergreater than305080120150180250315400500630
to5080120150180250315400500630800
Tolerance class UP, (tolerances in µm)
DeviationΔDmp00000000000
-5-6-7-8-9-10-12-14-17-20-25
Variation (roundness)VDp3344556791013
Intermediate diameter variationVDmp33445567910
Width variationVCs1,523445567811
RoundnessKea333445678911
Inclination variationSD22333445567
ThrustSea445679912121417

The width tolerance ∆Cs is identical to ∆Bs for the corresponding inner ring.

Toleranzklasse UP for double-acting axial angular contact ball bearings

Shaft washer (Dimensions in mm)
Nominal size hole diametergreater than18305080120150180250315400
to305080120150180250315400500
Tolerance class UP (tolerances in µm)
Bore DeviationΔdmp0000000000
-6-8-9-10-13-13-15-18-23-27
Variation (roundness)Vdp5678101012141820
Wall thickness variationSi1,51,522333445
Height deviationΔHs5075100125150150175200250300
-150-200-250-300-350-350-400-450-600-750
Housing washer (Dimensions in mm)
Nominal size outer diametergreater than305080120150180250315400500630
to5080120150180250315400500630800
Tolerance class UP (tolerances in µm)
Outer diameter DeviationΔDmp-20-24-28-33-33-37-41-46-50-55-60
-36-43-50-58-58-66-73-82-90-99-110
Variation (roundness)ΔDp56899101213151618
Width deviationΔCs-120-120-125-125-125-125-150-150-200-200-250
Wall thickness variationSe1,52233344567

Tolerances for thin section bearings

Tolerance class ABEC 1F – Type C bearings (deep groove ball bearings) [in inches]

Tolerance values in 0,0001 inch
dΔdap 1)KiaΔBsΔDap 1)KeaΔCs
inchSiaSea
greater thantomax.min.max.max.min.max.min.max.max. 2)min. 2)
010-450-500-58
11,50-560-500-58
1,52,50-680-500-510
2,530-680-500-610
340-8100-500-612
44,50-8100-500-814
4,550-10120-500-814
56,50-10120-500-1016
6,570-10120-500-1016
790-12160-500-1218
9120-14180-500-1420
12140-16180-1000-1620
14160-18180-1000-1820
16180-18200-1000-1820
18200-20200-1000-2020
20300-30200-1000-3020
30400-40200-1000-4020

1) Does not apply to bearings supplied by the manufacturer with internal preload.
2) Identifical to ∆Bs of inner ring of same bearing

Tolerance class ABEC 1F – Type A bearings (angular contact single bearings) and Type X bearings (four-point contact bearings)

Tolerance values in 0,0001 inch
dΔdap 1)KiaΔBs 2)ΔDap 1)KeaΔCs 2)
inchSiaSea
greater thantomax.min.max.max.min.max.min.max.max. 3)min. 3)
010-430-500-54
11,50-540-500-54
1,520-650-500-55
22,50-650-500-55
2,530-660-500-66
340-860-500-66
44,50-860-500-88
4,550-1080-500-88
56,50-10100-500-1010
6,570-10100-500-1210
790-12120-500-1212
9120-14140-500-1414
12140-14140-1000-1414
14180-16160-1000-1616
18300-18180-1000-1818
30400-20200-1000-2020

1) Does not apply to bearings supplied by the manufacturer with internal preload.
2) See Table "Width tolerances of modified Type A bearings" for duplex mounting.
3) Identifical to ∆Bs of inner ring of same bearing

Tolerance class ABEC 3F

Tolerance values in 0,0001 inch
dΔdap 1)KiaΔBs 2)ΔDap 1)KeaΔCs 2)
inchSiaSea
greater thantomax.min.max.max.min.max.min.max.max. 3)min. 3)
010-230-500-34
11,50-340-500-34
1,52,50-440-500-45
2,530-440-500-46
340-550-500-46
44,50-550-500-58
4,550-660-500-58
56,50-660-500-69
6,570-660-500-710
790-780-500-710
9110-8100-500-812
11120-8100-500-914
12140-8120-1000-914
14180-9140-1000-1016
18200-10160-1000-1218

1) Does not apply to bearings supplied by the manufacturer with internal preload.
2) See Table "Width tolerances of modified Type A bearings" for duplex mounting.
3) Identifical to ∆Bs of inner ring of same bearing

Tolerance class ABEC 5F

Tolerance values in 0,0001 inch
dΔdap 1)KiaSiaΔBs 2)ΔDap 1)KeaSeaΔCs 2)
inch
greater thantomax.min.max.max.max.min.max.min.max.max.max. 3)min. 3)
01,50-2230-500-223
1,52,50-3230-500-334
2,530-3230-500-345
340-3340-500-345
44,50-3340-500-445
4,550-4340-500-445
570-4340-500-556
790-5450-500-556
9110-5560-500-567
11120-5560-500-678
12140-6570-1000-678
14180-6780-1000-789
18200-7890-1000-8910

1) Does not apply to bearings supplied by the manufacturer with internal preload.
2) See Table "Width tolerances of modified Type A bearings" for duplex mounting.
3) Identifical to ∆Bs of inner ring of same bearing

Tolerance class ABEC 7F

Tolerance values in 0,0001 inch
dΔdap 1)KiaΔBs 2)ΔDap 1)KeaΔCs 2)
inchSiaSea
greater thantomax.min.max.max.min.max.min.max.max. 3)min. 3)
010-1,51,50-500-22
12,50-21,50-500-22
2,530-21,50-500-32
340-2,520-500-32
44,50-2,520-500-43
4,56,50-330-500-43
6,570-330-500-44
790-430-500-44
9110-540-500-54
11120-540-500-55
12140-540-1000-65

1) Does not apply to bearings supplied by the manufacturer with internal preload.
2) See Table "Width tolerances of modified Type A bearings" for duplex mounting.
3) Identifical to ∆Bs of inner ring of same bearing

Width tolerances of modified Type A bearings

Tolerance values in 0,0001 inch
dΔBs 1)
inch
greater thantomax.min.
020-200
250-300
5140-400
14400-500

1) Applies to overall width deviation for a pair of Type A bearings modified for duplex mounting. The outer ring width deviation limit, ∆Cs, is identcal to ∆Bs for inner rings of the same bearing set.

Tolerance class ABEC 1F – Type C bearings (deep groove ball bearings)

Tolerance values in µm
ddΔdap 1)KiaΔBs 2)ΔDap 1)KeaΔCs 2)
inchmmSiaSea
greater thantogreater thantomax.min.max.max.min.max.min.max.max. 2)min. 2)
01025,40-10130-1270-1320
11,525,438,10-13150-1270-1320
1,52,538,163,50-15200-1270-1325
2,5363,576,20-15200-1270-1525
3476,2101,60-20250-1270-1530
44,5101,6114,30-20250-1270-2036
4,55114,31270-25300-1270-2036
56,5127165,10-25300-1270-2541
6,57165,1177,80-25300-1270-2541
79177,8228,60-30410-1270-3046
912228,6304,80-36460-1270-3651
1214304,8355,60-41460-2540-4151
1416355,6406,40-46460-2540-4651
1618406,4457,20-46510-2540-4651
1820457,25080-51510-2540-5151
20305087620-76510-2540-7651
304076210160-102510-2540-10251

1) Does not apply to bearings supplied by the manufacturer with internal preload.
2) Identifical to ∆Bs of inner ring of same bearing

Tolerance class ABEC 1F – Type A bearings (angular contact single bearings) and Type X bearings (four-point contact bearings)

Tolerance values in µm
ddΔdap 1)Kia
Sia
ΔBs 2)ΔDap 1)KeaΔCs 2)
inchmmSiaSea
greater thantogreater thantomax.min.max.max.min.max.min.max.max. 3)min. 3)
01025,40-1080-1270-1310
11,525,438,10-13100-1270-1310
1,5238,150,80-15130-1270-1313
22,550,863,50-15130-1270-1313
2,5363,576,20-15150-1270-1515
3476,2101,60-20150-1270-1515
44,5101,6114,30-20150-1270-2020
4,55114,31270-25200-1270-2020
56,5127165,10-25250-1270-2525
6,57165,1177,80-25250-1270-3025
79177,8228,60-30300-1270-3030
912228,6304,80-36360-1270-3636
1214304,8355,60-36360-2540-3636
1418355,6457,20-41410-2540-4141
1830457,27620-46460-2540-4646
304076210160-51510-2540-5151

1) Does not apply to bearings supplied by the manufacturer with internal preload.
2) See Table "Width tolerances of modified Type A bearings" for duplex mounting.
3) Identifical to ∆Bs of inner ring of same bearing

Tolerance class ABEC 3F

Tolerance values in µm
ddΔdap 1)KiaΔBs 2)ΔDap 1)KeaΔCs 2)
inchmmSiaSea
greater thantogreater thantomax.min.max.max.min.max.min.max.max. 3)min. 3)
01025,40-580-1270-810
11,525,438,10-8100-1270-810
1,52,538,163,50-10100-1270-1013
2,5363,576,20-10100-1270-1015
3476,2101,60-13130-1270-1015
44,5101,6114,30-13130-1270-1320
4,55114,31270-15150-1270-1320
56,5127165,10-15150-1270-1523
6,57165,1177,80-15150-1270-1825
79177,8228,60-18200-1270-1825
911228,6279,40-20250-1270-2030
1112279,4304,80-20250-1270-2336
1214304,8355,60-20300-2540-2336
1418355,6457,20-23360-2540-2541
1820457,25080-25410-2540-3046

1) Does not apply to bearings supplied by the manufacturer with internal preload.
2) See Table "Width tolerances of modified Type A bearings" for duplex mounting.
3) Identifical to ∆Bs of inner ring of same bearing

Tolerance class ABEC 5F

Tolerance values in µm
ddΔdap 1)KiaSiaΔBs 2)ΔDap 1)KeaSeaΔCs 2)
inchmm
greater thantogreater thantomax.min.max.max.max.min.max.min.max.max.max. 3)min. 3)
01,5038,10-5580-1270-558
1,52,538,163,50-8580-1270-8810
2,5363,576,20-8580-1270-81013
3476,2101,60-88100-1270-81013
44,5101,6114,30-88100-1270-101013
4,55114,31270-108100-1270-101013
57127177,80-108100-1270-131315
79177,8228,60-1310130-1270-131315
911228,6279,40-1313150-1270-131518
1112279,4304,80-1313150-1270-151820
1214304,8355,60-1513180-2540-151820
1418355,6457,20-1518200-2540-182023
1820457,25080-1820230-2540-202325

1) Does not apply to bearings supplied by the manufacturer with internal preload.
2) See Table "Width tolerances of modified Type A bearings" for duplex mounting.
3) Identifical to ∆Bs of inner ring of same bearing

Tolerance class ABEC 7F

Tolerance values in µm
ddΔdap 1)KiaΔBs 2)ΔDap 1)KeaΔCs 2)
inchmmSiaSea
greater thantogreater thantomax.min.max.max.min.max.min.max.max. 3)min. 3)
01025,40-440-1270-55
12,525,463,50-540-1270-55
2,5363,576,20-540-1270-85
3476,2101,60-650-1270-85
44,5101,6114,30-650-1270-108
4,56,5114,3165,10-880-1270-108
6,57165,1177,80-880-1270-1010
79177,8228,60-1080-1270-1010
911228,6279,40-13100-1270-1310
1112279,4304,80-13100-1270-1313
1214304,8355,60-13100-2540-1513

1) Does not apply to bearings supplied by the manufacturer with internal preload.
2) See Table "Width tolerances of modified Type A bearings" for duplex mounting.
3) Identifical to ∆Bs of inner ring of same bearing

Width tolerances of modified Type A bearings

Tolerance values in µm
ddΔBs 1)
inchmm
greater thantogreater thantomax.min.
02050,80-508
2550,81270-762
514127355,60-1016
1440355,610160-1270

1) Applies to overall width deviation for a pair of Type A bearings modified for duplex mounting. The outer ring width deviation limit, ∆Cs, is identcal to ∆Bs for inner rings of the same bearing set.

Tolerances of axial bearings

Tolerance class PN

Shaft washer (Dimensions in mm)
Nominal size hole diametergreater than3050801201802503154005006308001000
to508012018025031540050063080010001250
Tolerance class PN (Normal tolerance), (tolerances in µm)
DeviationΔdmp000000000000
-12-15-20-25-30-35-40-45-50-75-100-125
Variation (roundness)Vdp91115192226303438547494
Wall thickness variationSi101015152025303035404550
Housing washer (Dimensions in mm))
Nominal size outer diametergreater than508012018025031540050063080010001250
to80120180250315400500630800100012501600
Tolerance class PN (Normaltoleranz), (tolerances in µm)
DeviationΔDmp000000000000
-19-22-25-30-35-40-45-50-75-100-125-160
Variation (roundness)VDp1417182326303438557595120

The wall thickness variation Se for the housing washer is identical with Si of the shaft washer/ shaft ring.

Tolerance class P6

Shaft washer (Dimensions in mm)
Nominal size hole diametergreater than3050801201802503154005006308001000
to508012018025031540050063080010001250
Tolerance class P6, (tolerances in µm)
DeviationΔdmp000000000000
-12-15-20-25-30-35-40-45-50-75-100-125
Variation (roundness)Vdp91115192226303438547595
Wall thickness variationSi67891013151821253035

The wall thickness variation Se for the housing washer is identical with Si of the shaft washer/ shaft ring.

Housing washer (Dimensions in mm)
Nominal size outer diametergreater than508012018025031540050063080010001250
to80120180250315400500630800100012501600
Tolerance class P6, (tolerances in µm)
DeviationΔDmp000000000000
-19-22-25-30-35-40-45-50-75-100-125-160
Variation (roundness)VDp1417192226303438557595120

The wall thickness variation Se for the housing washer is identical with Si of the shaft washer/ shaft ring.

Tolerance class P5

Shaft washer (Dimensions in mm))
Nominal size hole diametergreater than3050801201802503154005006308001000
to508012018025031540050063080010001250
Tolerance class P5, (tolerances in µm)
DeviationΔdmp000000000000
-12-15-20-25-30-35-40-45-50-75-100-125
Variation (roundness)Vdp91115192326303438547595
Wall thickness variationSi3445577911131518
Housing washer (Dimensions in mm)
Nominal size outer diametergreater than508012018025031540050063080010001250
to80120180250315400500630800100012501600
Tolerance class P5, (tolerances in µm)
DeviationΔDmp000000000000
-19-22-25-30-35-40-45-50-75-100-125-160
Variation (roundness)VDp1417192326303438557595120

The wall thickness variation Se for the housing washer is identical with Si of the shaft washer/ shaft ring.

Tolerance class P4

Shaft washer (Dimensions in mm)
Nominal size hole diametergreater than3050801201802503154005006308001000
to508012018025031540050063080010001250
Tolerance class P4, (tolerances in µm)
DeviationΔdmp000000000000
-10-12-15-18-22-25-30-35-40-50-65-80
Variation (roundness)Vdp8911141719232630385060
Wall thickness variationSi23344556781012

The wall thickness variation Se for the housing washer is identical with Si of the shaft washer/ shaft ring.

Housing washer (Dimensions in mm)
Nominal size outer diametergreater than508012018025031540050063080010001250
to80120180250315400500630800100012501600
Tolerance class P4, (tolerances in µm)
DeviationΔDmp000000000000
-11-13-15-20-25-28-33-38-45-60-80-100
Variation (roundness)VDp81014151920242934456075

The wall thickness variation Se for the housing washer is identical with Si of the shaft washer/ shaft ring.

Tolerance class HP

Shaft washer (Dimensions in mm)
Nominal size hole diametergreater than18305080120150180250315400
to305080120150180250315400500
Tolerance class HP (tolerances in µm)
Bore DeviationΔdmp0000000000
-8-10-12-15-18-18-22-25-30-35
Variation (roundness)Vdp68911141417192226
Wall thickness variationSi3344555779
Height deviationΔHs5075100125150150175200250300
-150-200-250-300-350-350-400-450-600-750
Housing washer (Dimensions in mm)
Nominal size outer diametergreater than305080120150180250315400500630
to5080120150180250315400500630800
Tolerance class HP (tolerances in µm)
Outer diameter DeviationΔDmp-20-24-28-33-33-37-41-46-50-55-60
-36-43-50-58-58-66-73-82-90-99-110
Variation (roundness)ΔDp56899101213151618
Width deviationΔCs-120-120-125-125-125-125-150-150-200-200-250
Wall thickness variationSe3445557791113

Tolerance class UP

Shaft washer (Dimensions in mm)
Nominal size hole diametergreater than18305080120150180250315400
to305080120150180250315400500
Tolerance class UP (tolerances in µm)
Bore DeviationΔdmp0000000000
-6-8-9-10-13-13-15-18-23-27
Variation (roundness)Vdp5678101012141820
Wall thickness variationSi1,51,522333445
Height deviationΔHs5075100125150150175200250300
-150-200-250-300-350-350-400-450-600-750
Housing washer (Dimensions in mm)
Nominal size outer diametergreater than305080120150180250315400500630
to5080120150180250315400500630800
Tolerance class UP (tolerances in µm)
Outer diameter DeviationΔDmp-20-24-28-33-33-37-41-46-50-55-60
-36-43-50-58-58-66-73-82-90-99-110
Variation (roundness)ΔDp56899101213151618
Width deviationΔCs-120-120-125-125-125-125-150-150-200-200-250
Wall thickness variationSe1,52233344567

Overall head (headroom) (PN…P4)

Overall head (headroom) of axial bearings (Dimensions in mm)
Nominal size hole diametergreater than3050801201802503154005006308001000
to508012018025031540050063080010001250
Tolerance classes PN…P4, (tolerances in µm)
DeviationΔHs2020252530404050607080100
-250-300-300-400-400-400-500-500-600-750-1000-1400
DeviationΔH1s100100150150150200200300350400450550
-250-300-300-400-400-400-500-500-600-750-1000-1400