Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
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Bearing No. 32308JR

Specifications
(Boundary dimensions ...etc)

d(mm)40
D(mm)90
T(mm)35.25
B(mm)33
C(mm)27
r(min.)(mm)2
r1(min.)(mm)1.5
Basic load ratings : Cr(kN)145
Basic load ratings : C0r(kN)139
Fatigue load limit : Cu(kN)21.3
Limiting speeds(Grease lub.)(min-1)4600
Limiting speeds(Oil lub.)(min-1)6200
Load center spread : a(mm)24.3
Constant e()0.35
Axial load factors : Y1()1.74
Axial load factors : Y0()0.96

Mounting dimensions

da(min.)(mm)50
db(max.)(mm)50
Da(max.)(mm)80
Da(min.)(mm)73
Db(min.)(mm)82
Sa(min.)(mm)3
Sb(min.)(mm)8
ra(max.)(mm)2
rb(max.)(mm)1.5

Refer.

(Refer.)Mass(kg) 1.06
JTEKT

2025/06/24