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


Bearing No. 45252

Specification data (main dimensions, etc.)

d(mm)260
D(mm)400
B(mm)104
T(mm)104
r(min.)(mm)4
r1(min.)(mm)5
Basic load ratings : Cr(kN)1320
Basic load ratings : C0r(kN)2120
Fatigue load limit : Cu(kN)227
Limiting speeds(Grease lub.)(min-1)610
Limiting speeds(Oil lub.)(min-1)810
Constant e0.25
Axial load factors : Y22.74
Axial load factors : Y34.08
Axial load factors : Y02.68

Mounting dimensions,weight (reference)

da(max.)(mm)302 mm
Da(max.)(mm)382 mm
Da(min.)(mm)360 mm
Sa(min.)(mm)6 mm
ra(max.)(mm)3 mm
rb(max.)(mm)4 mm
Mass(Refer.)(kg)48.1 kg
JTEKT

2026/07/01