Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
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Bearing No. 32256

Specifications
(Boundary dimensions ...etc)

d(mm)280
D(mm)500
T(mm)137
B(mm)130
C(mm)106
r(min.)(mm)6
r1(min.)(mm)5
Basic load ratings : Cr(kN)2340
Basic load ratings : C0r(kN)3150
Fatigue load limit : Cu(kN)297
Limiting speeds(Grease lub.)(min-1)610
Limiting speeds(Oil lub.)(min-1)810
Load center spread : a(mm)117.2
Constant e()0.43
Axial load factors : Y1()1.39
Axial load factors : Y0()0.77

Mounting dimensions

da(min.)(mm)308
db(max.)(mm)325
Da(max.)(mm)478
Da(min.)(mm)420
Db(min.)(mm)474
Sa(min.)(mm)16
Sb(min.)(mm)30
ra(max.)(mm)5
rb(max.)(mm)4

Refer.

(Refer.)Mass(kg) 108
JTEKT

2025/06/01