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

Bearing No. 45264

Specifications
(Boundary dimensions ...etc)

d(mm)320
D(mm)480
B(mm)121
T(mm)121
r(min.)(mm)4
r1(min.)(mm)5
Basic load ratings : Cr(kN)1830
Basic load ratings : C0r(kN)3180
Fatigue load limit : Cu(kN)322
Limiting speeds(Grease lub.)(min-1)470
Limiting speeds(Oil lub.)(min-1)630
Constant e()0.26
Axial load factors : Y2()2.55
Axial load factors : Y3()3.80
Axial load factors : Y0()2.50

Mounting dimensions

da(max.)(mm)368
Da(max.)(mm)462
Da(min.)(mm)434
Sa(min.)(mm)6
ra(max.)(mm)3
rb(max.)(mm)4

Refer.

(Refer.)Mass(kg) 77.8
JTEKT

2025/06/01