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

Bearing No. 45388

Specifications
(Boundary dimensions ...etc)

d(mm)440
D(mm)720
B(mm)226
T(mm)226
r(min.)(mm)6
r1(min.)(mm)6
Basic load ratings : Cr(kN)5750
Basic load ratings : C0r(kN)9130
Fatigue load limit : Cu(kN)834
Limiting speeds(Grease lub.)(min-1)270
Limiting speeds(Oil lub.)(min-1)360
Constant e()0.39
Axial load factors : Y2()1.74
Axial load factors : Y3()2.59
Axial load factors : Y0()1.70

Mounting dimensions

da(max.)(mm)506
Da(max.)(mm)692
Da(min.)(mm)642
Sa(min.)(mm)7
ra(max.)(mm)5
rb(max.)(mm)5

Refer.

(Refer.)Mass(kg) 367
JTEKT

2025/06/01