Koyo
FOR REFERENCE ONLY
  • Spherical roller bearings
  • Withdrawal sleeves
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Bearing No. 21312RZK+AHX312

Specifications
(Boundary dimensions ...etc)

d1(mm)55
B1(mm)40
B2(mm)43
G(mm)M65�2
G1(mm)8
d(mm)60
D(mm)130
B(mm)31
r(min.)(mm)2.1
Basic load ratings : Cr(kN)210
Basic load ratings : C0r(kN)193
Limiting speeds(Grease lub.)(min-1)3900
Limiting speeds(Oil lub.)(min-1)5100
Constant e()0.24
Axial load factors : Y1()2.78
Axial load factors : Y2()4.14
Axial load factors : Y0()2.72

Mounting dimensions

Refer.

(Refer.)Mass(kg) 2.27
JTEKT

2025/06/01