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

Bearing No. 46388A

Specifications
(Boundary dimensions ...etc)

d(mm)440
D(mm)720
T(mm)283
C(mm)226
r(min.)(mm)6
r1(min.)(mm)3
Basic load ratings : Cr(kN)6210
Basic load ratings : C0r(kN)10100
Fatigue load limit : Cu(kN)893
Limiting speeds(Grease lub.)(min-1)270
Limiting speeds(Oil lub.)(min-1)360
Constant e()0.40
Axial load factors : Y2()1.68
Axial load factors : Y3()2.51
Axial load factors : Y0()1.65

Mounting dimensions

da(min.)(mm)468
Da(min.)(mm)679
Sa(min.)(mm)28.5
ra(max.)(mm)5
rb(max.)(mm)2.5

Refer.

(Refer.)Mass(kg) 418
JTEKT

2025/06/01