Koyo
FOR REFERENCE ONLY
  • Spherical roller bearings
  • Adapter assembles
>

Bearing No. 21310RZK+H310X

Specifications
(Boundary dimensions ...etc)

d1(mm)45
B1(mm)42
d2(mm)70
B2(mm)12
B3(mm)-
d(mm)50
D(mm)110
B(mm)27
r(min.)(mm)2
Basic load ratings : Cr(kN)157
Basic load ratings : C0r(kN)151
Limiting speeds(Grease lub.)(min-1)4500
Limiting speeds(Oil lub.)(min-1)6100
Constant e()0.25
Axial load factors : Y1()2.71
Axial load factors : Y2()4.04
Axial load factors : Y0()2.65

Mounting dimensions

A(min.)(mm)19
K(min.)(mm)76
de(min.)(mm)54
b(min.)(mm)5

Refer.

(Refer.)Mass(kg) 1.67
JTEKT

2025/06/01