Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
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Bearing No. 32910JR

Specifications
(Boundary dimensions ...etc)

d(mm)50
D(mm)72
T(mm)15
B(mm)15
C(mm)12
r(min.)(mm)0.6
r1(min.)(mm)0.6
Basic load ratings : Cr(kN)45.0
Basic load ratings : C0r(kN)56.3
Fatigue load limit : Cu(kN)8.00
Limiting speeds(Grease lub.)(min-1)4900
Limiting speeds(Oil lub.)(min-1)6600
Load center spread : a(mm)13.7
Constant e()0.34
Axial load factors : Y1()1.76
Axial load factors : Y0()0.97

Mounting dimensions

da(min.)(mm)54.5
db(max.)(mm)55
Da(max.)(mm)67.5
Da(min.)(mm)65
Db(min.)(mm)69
Sa(min.)(mm)3
Sb(min.)(mm)3
ra(max.)(mm)0.6
rb(max.)(mm)0.6

Refer.

(Refer.)Mass(kg) 0.195
JTEKT

2025/06/01