Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
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Bearing No. 33111JR

Specifications
(Boundary dimensions ...etc)

d(mm)55
D(mm)95
T(mm)30
B(mm)30
C(mm)23
r(min.)(mm)1.5
r1(min.)(mm)1.5
Basic load ratings : Cr(kN)145
Basic load ratings : C0r(kN)161
Fatigue load limit : Cu(kN)24.6
Limiting speeds(Grease lub.)(min-1)4000
Limiting speeds(Oil lub.)(min-1)5300
Load center spread : a(mm)22.5
Constant e()0.37
Axial load factors : Y1()1.60
Axial load factors : Y0()0.88

Mounting dimensions

da(min.)(mm)63.5
db(max.)(mm)62
Da(max.)(mm)86.5
Da(min.)(mm)83
Db(min.)(mm)91
Sa(min.)(mm)5
Sb(min.)(mm)7
ra(max.)(mm)1.5
rb(max.)(mm)1.5

Refer.

(Refer.)Mass(kg) 0.868
JTEKT

2025/06/01