Koyo
FOR REFERENCE ONLY
  • Spherical roller bearings
  • Spherical roller bearings
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Bearing No. 21310RZ

Specifications
(Boundary dimensions ...etc)

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
Fatigue load limit : Cu(kN)12.0
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

da(min.)(mm)60
da(max.)(mm)
Da(max.)(mm)100
Da(min.)(mm)
ra(max.)(mm)2

Refer.

(Refer.)Mass(kg) 1.37
JTEKT

2025/05/20