Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series


Bearing No. 30207JR

Specification data (main 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 e0.37
Axial load factors : Y11.60
Axial load factors : Y00.88

Mounting dimensions,weight (reference)

da(min.)(mm)43.5 mm
db(max.)(mm)44 mm
Da(max.)(mm)63.5 mm
da(min.)(mm)62 mm
db(min.)(mm)67 mm
Sa(min.)(mm)3 mm
Sb(min.)(mm)3 mm
ra(max.)(mm)1.5 mm
rb(max.)(mm)1.5 mm
Mass(Refer.)(kg)0.344 kg
JTEKT

2026/07/21