Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
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Bearing No. 303/22XR

Specifications
(Boundary dimensions ...etc)

d(mm)22
D(mm)56
T(mm)17.25
B(mm)16
C(mm)13
r(min.)(mm)1.5
r1(min.)(mm)1.5
Basic load ratings : Cr(kN)43.0
Basic load ratings : C0r(kN)33.9
Fatigue load limit : Cu(kN)4.70
Limiting speeds(Grease lub.)(min-1)7700
Limiting speeds(Oil lub.)(min-1)10000
Load center spread : a(mm)15.7
Constant e()0.59
Axial load factors : Y1()1.02
Axial load factors : Y0()0.56

Mounting dimensions

da(min.)(mm)30.5
db(max.)(mm)31
Da(max.)(mm)47.5
Da(min.)(mm)44
Db(min.)(mm)52
Sa(min.)(mm)3
Sb(min.)(mm)4
ra(max.)(mm)1.5
rb(max.)(mm)1.5

Refer.

(Refer.)Mass(kg) 0.210
JTEKT

2025/06/01