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


Bearing No. 30314DJR

Specification data (main dimensions, etc.)

d(mm)70
D(mm)150
T(mm)38
B(mm)35
C(mm)25
r(min.)(mm)3
r1(min.)(mm)2.5
Basic load ratings : Cr(kN)246
Basic load ratings : C0r(kN)235
Fatigue load limit : Cu(kN)34.9
Limiting speeds(Grease lub.)(min-1)2300
Limiting speeds(Oil lub.)(min-1)3200
Load center spread : a(mm)47.1
Constant e0.83
Axial load factors : Y10.73
Axial load factors : Y00.40

Mounting dimensions,weight (reference)

da(min.)(mm)84 mm
db(max.)(mm)84 mm
Da(max.)(mm)138 mm
da(min.)(mm)118 mm
db(min.)(mm)142 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)2.97 kg
JTEKT

2026/07/29