Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Double-row
  • TDO type
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Bearing No. 46T30312DJR/51

Specifications
(Boundary dimensions ...etc)

d(mm)60
D(mm)130
T(mm)74
C(mm)51
r(min.)(mm)2.5
r1(min.)(mm)1
Basic load ratings : Cr(kN)327
Basic load ratings : C0r(kN)359
Fatigue load limit : Cu(kN)54.2
Limiting speeds(Grease lub.)(min-1)2100
Limiting speeds(Oil lub.)(min-1)2900
Constant e()0.83
Axial load factors : Y2()0.82
Axial load factors : Y3()1.22
Axial load factors : Y0()0.8

Mounting dimensions

da(min.)(mm)74
Da(min.)(mm)124
Sa(min.)(mm)11.5
ra(max.)(mm)2.5
rb(max.)(mm)1

Refer.

(Refer.)Mass(kg) 4.45
JTEKT

2025/06/01