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


Bearing No. 30313DJR

Specification data (main dimensions, etc.)

d(mm)65
D(mm)140
T(mm)36
B(mm)33
C(mm)23
r(min.)(mm)3
r1(min.)(mm)2.5
Basic load ratings : Cr(kN)220
Basic load ratings : C0r(kN)209
Fatigue load limit : Cu(kN)31.4
Limiting speeds(Grease lub.)(min-1)2400
Limiting speeds(Oil lub.)(min-1)3400
Load center spread : a(mm)44.3
Constant e0.83
Axial load factors : Y10.73
Axial load factors : Y00.40

Mounting dimensions,weight (reference)

da(min.)(mm)79 mm
db(max.)(mm)79 mm
Da(max.)(mm)128 mm
da(min.)(mm)111 mm
db(min.)(mm)133 mm
Sa(min.)(mm)4 mm
Sb(min.)(mm)13 mm
ra(max.)(mm)2.5 mm
rb(max.)(mm)2 mm
Mass(Refer.)(kg)2.44 kg
JTEKT

2026/07/27