Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
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Bearing No. 30207JR

Specifications
(Boundary dimensions ...etc)

d(mm)35
D(mm)72
T(mm)18.25
B(mm)17
C(mm)15
r(min.)(mm)1.5
r1(min.)(mm)1.5
Basic load ratings : Cr(kN)68.8
Basic load ratings : C0r(kN)60.9
Fatigue load limit : Cu(kN)8.95
Limiting speeds(Grease lub.)(min-1)5600
Limiting speeds(Oil lub.)(min-1)7400
Load center spread : a(mm)15.3
Constant e()0.37
Axial load factors : Y1()1.60
Axial load factors : Y0()0.88

Mounting dimensions

da(min.)(mm)43.5
db(max.)(mm)44
Da(max.)(mm)63.5
Da(min.)(mm)62
Db(min.)(mm)67
Sa(min.)(mm)3
Sb(min.)(mm)3
ra(max.)(mm)1.5
rb(max.)(mm)1.5

Refer.

(Refer.)Mass(kg) 0.344
JTEKT

2025/07/11