Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
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Bearing No. 33021JR

Specifications
(Boundary dimensions ...etc)

d(mm)105
D(mm)160
T(mm)43
B(mm)43
C(mm)34
r(min.)(mm)2.5
r1(min.)(mm)2
Basic load ratings : Cr(kN)335
Basic load ratings : C0r(kN)461
Fatigue load limit : Cu(kN)67.4
Limiting speeds(Grease lub.)(min-1)2200
Limiting speeds(Oil lub.)(min-1)3000
Load center spread : a(mm)30.9
Constant e()0.28
Axial load factors : Y1()2.12
Axial load factors : Y0()1.17

Mounting dimensions

da(min.)(mm)117
db(max.)(mm)116
Da(max.)(mm)150
Da(min.)(mm)145
Db(min.)(mm)153
Sa(min.)(mm)7
Sb(min.)(mm)9
ra(max.)(mm)2
rb(max.)(mm)2

Refer.

(Refer.)Mass(kg) 3.08
JTEKT

2025/06/01