Koyo
FOR REFERENCE ONLY
  • Spherical roller bearings
  • Spherical roller bearings
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Bearing No. 21316RZ

Specifications
(Boundary dimensions ...etc)

d(mm)80
D(mm)170
B(mm)39
r(min.)(mm)2.1
Basic load ratings : Cr(kN)344
Basic load ratings : C0r(kN)339
Fatigue load limit : Cu(kN)27.5
Limiting speeds(Grease lub.)(min-1)2900
Limiting speeds(Oil lub.)(min-1)3900
Constant e()0.23
Axial load factors : Y1()2.88
Axial load factors : Y2()4.29
Axial load factors : Y0()2.82

Mounting dimensions

da(min.)(mm)92
da(max.)(mm)
Da(max.)(mm)158
Da(min.)(mm)
ra(max.)(mm)2

Refer.

(Refer.)Mass(kg) 4.53
JTEKT

2025/06/16