Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
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Bearing No. 33112JR

Specifications
(Boundary dimensions ...etc)

d(mm)60
D(mm)100
T(mm)30
B(mm)30
C(mm)23
r(min.)(mm)1.5
r1(min.)(mm)1.5
Basic load ratings : Cr(kN)149
Basic load ratings : C0r(kN)170
Fatigue load limit : Cu(kN)25.9
Limiting speeds(Grease lub.)(min-1)3700
Limiting speeds(Oil lub.)(min-1)5000
Load center spread : a(mm)23.7
Constant e()0.40
Axial load factors : Y1()1.51
Axial load factors : Y0()0.83

Mounting dimensions

da(min.)(mm)68.5
db(max.)(mm)67
Da(max.)(mm)91.5
Da(min.)(mm)88
Db(min.)(mm)96
Sa(min.)(mm)5
Sb(min.)(mm)7
ra(max.)(mm)1.5
rb(max.)(mm)1.5

Refer.

(Refer.)Mass(kg) 0.923
JTEKT

2025/06/01