Koyo
FOR REFERENCE ONLY
  • Spherical roller bearings
  • Spherical roller bearings
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Bearing No. 21309RZ

Specifications
(Boundary dimensions ...etc)

d(mm)45
D(mm)100
B(mm)25
r(min.)(mm)1.5
Basic load ratings : Cr(kN)132
Basic load ratings : C0r(kN)124
Fatigue load limit : Cu(kN)9.95
Limiting speeds(Grease lub.)(min-1)5000
Limiting speeds(Oil lub.)(min-1)6700
Constant e()0.26
Axial load factors : Y1()2.62
Axial load factors : Y2()3.90
Axial load factors : Y0()2.56

Mounting dimensions

da(min.)(mm)53.5
da(max.)(mm)
Da(max.)(mm)91.5
Da(min.)(mm)
ra(max.)(mm)1.5

Refer.

(Refer.)Mass(kg) 1.05
JTEKT

2025/06/15