Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
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Bearing No. 33122JR

Specifications
(Boundary dimensions ...etc)

d(mm)110
D(mm)180
T(mm)56
B(mm)56
C(mm)43
r(min.)(mm)2.5
r1(min.)(mm)2
Basic load ratings : Cr(kN)464
Basic load ratings : C0r(kN)634
Fatigue load limit : Cu(kN)78.6
Limiting speeds(Grease lub.)(min-1)2000
Limiting speeds(Oil lub.)(min-1)2700
Load center spread : a(mm)44.5
Constant e()0.42
Axial load factors : Y1()1.43
Axial load factors : Y0()0.79

Mounting dimensions

da(min.)(mm)122
db(max.)(mm)121
Da(max.)(mm)170
Da(min.)(mm)155
Db(min.)(mm)174
Sa(min.)(mm)9
Sb(min.)(mm)13
ra(max.)(mm)2
rb(max.)(mm)2

Refer.

(Refer.)Mass(kg) 5.52
JTEKT

2025/06/01