Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
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Bearing No. 33010JR

Specifications
(Boundary dimensions ...etc)

d(mm)50
D(mm)80
T(mm)24
B(mm)24
C(mm)19
r(min.)(mm)1
r1(min.)(mm)1
Basic load ratings : Cr(kN)91.8
Basic load ratings : C0r(kN)110
Fatigue load limit : Cu(kN)16.3
Limiting speeds(Grease lub.)(min-1)4600
Limiting speeds(Oil lub.)(min-1)6100
Load center spread : a(mm)17.4
Constant e()0.32
Axial load factors : Y1()1.90
Axial load factors : Y0()1.04

Mounting dimensions

da(min.)(mm)55.5
db(max.)(mm)56
Da(max.)(mm)74.5
Da(min.)(mm)72
Db(min.)(mm)76
Sa(min.)(mm)4
Sb(min.)(mm)5
ra(max.)(mm)1
rb(max.)(mm)1

Refer.

(Refer.)Mass(kg) 0.451
JTEKT

2025/05/29