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


Bearing No. 30218JR

Specification data (main dimensions, etc.)

d(mm)90
D(mm)160
T(mm)32.5
B(mm)30
C(mm)26
r(min.)(mm)2.5
r1(min.)(mm)2
Basic load ratings : Cr(kN)255
Basic load ratings : C0r(kN)261
Fatigue load limit : Cu(kN)39.0
Limiting speeds(Grease lub.)(min-1)2400
Limiting speeds(Oil lub.)(min-1)3200
Load center spread : a(mm)32.6
Constant e0.42
Axial load factors : Y11.43
Axial load factors : Y00.79

Mounting dimensions,weight (reference)

da(min.)(mm)102 mm
db(max.)(mm)103 mm
Da(max.)(mm)150 mm
da(min.)(mm)140 mm
db(min.)(mm)150 mm
Sa(min.)(mm)5 mm
Sb(min.)(mm)6.5 mm
ra(max.)(mm)2 mm
rb(max.)(mm)2 mm
Mass(Refer.)(kg)2.65 kg
JTEKT

2026/07/18