NU421M1

single row

Technical data

*) the unit "B" in the graphics corresponds in English to the unit "W" for "Width".

d(mm)105Bore diameter

D(mm)260Outer diameter

W(mm)60Width

r_{s min}(mm)4Minimal edge distance

r_{1s min}(mm)4Minimal edge distance

E(mm)220.5Raceway diameter outer ring

F(mm)144.5Raceway diameter inner ring

H(mm)207.4Shoulder diameter outer ring

s(mm)5.7Axial offset path

d_{a min}(mm)125Minimal diameter of shaft shoulder

d_{a max}(mm)143Maximal diameter of shaft shoulder

d_{b min}(mm)147Minimal diameter shaft step (offset)

D_{a max}(mm)240Maximal diameter of housing shoulder

r_{a max}(mm)3Maximal rounding radius

r_{b max}(mm)3Maximal rounding radius

C_r(kN)492Dynamic load rating, radial

C_0r(kN)525Static load rating, radial

C_ur(kN)56.6Fatigue limit load, radial

n_G(min^-1)2800Limit speed

n_B(min^-1)2700Reference speed

kg19Mass