Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
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Bearing No. 32228JR

Specifications
(Boundary dimensions ...etc)

d(mm)140
D(mm)250
T(mm)71.75
B(mm)68
C(mm)58
r(min.)(mm)4
r1(min.)(mm)3
Basic load ratings : Cr(kN)796
Basic load ratings : C0r(kN)961
Fatigue load limit : Cu(kN)112
Limiting speeds(Grease lub.)(min-1)1500
Limiting speeds(Oil lub.)(min-1)2000
Load center spread : a(mm)60.0
Constant e()0.44
Axial load factors : Y1()1.38
Axial load factors : Y0()0.76

Mounting dimensions

da(min.)(mm)158
db(max.)(mm)158
Da(max.)(mm)236
Da(min.)(mm)210
Db(min.)(mm)238
Sa(min.)(mm)9
Sb(min.)(mm)13.5
ra(max.)(mm)3
rb(max.)(mm)2.5

Refer.

(Refer.)Mass(kg) 14.7
JTEKT

2025/06/01