Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
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Bearing No. 30224JR

Specifications
(Boundary dimensions ...etc)

d(mm)120
D(mm)215
T(mm)43.5
B(mm)40
C(mm)34
r(min.)(mm)3
r1(min.)(mm)2.5
Basic load ratings : Cr(kN)435
Basic load ratings : C0r(kN)473
Fatigue load limit : Cu(kN)61.7
Limiting speeds(Grease lub.)(min-1)1700
Limiting speeds(Oil lub.)(min-1)2300
Load center spread : a(mm)44.2
Constant e()0.44
Axial load factors : Y1()1.38
Axial load factors : Y0()0.76

Mounting dimensions

da(min.)(mm)134
db(max.)(mm)140
Da(max.)(mm)203
Da(min.)(mm)187
Db(min.)(mm)203
Sa(min.)(mm)6
Sb(min.)(mm)9.5
ra(max.)(mm)2.5
rb(max.)(mm)2

Refer.

(Refer.)Mass(kg) 6.36
JTEKT

2025/06/15