Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Double-row
  • TDO type
>

Bearing No. 46256A

Specifications
(Boundary dimensions ...etc)

d(mm)280
D(mm)420
T(mm)133
C(mm)106
r(min.)(mm)5
r1(min.)(mm)1.5
Basic load ratings : Cr(kN)1570
Basic load ratings : C0r(kN)2610
Fatigue load limit : Cu(kN)277
Limiting speeds(Grease lub.)(min-1)570
Limiting speeds(Oil lub.)(min-1)760
Constant e()0.33
Axial load factors : Y2()2.03
Axial load factors : Y3()3.02
Axial load factors : Y0()1.98

Mounting dimensions

da(min.)(mm)302
Da(min.)(mm)394
Sa(min.)(mm)13.5
ra(max.)(mm)4
rb(max.)(mm)1.5

Refer.

(Refer.)Mass(kg) 58.9
JTEKT

2025/06/26