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


Bearing No. 30319DJR

Specification data (main dimensions, etc.)

d(mm)95
D(mm)200
T(mm)49.5
B(mm)45
C(mm)32
r(min.)(mm)4
r1(min.)(mm)3
Basic load ratings : Cr(kN)398
Basic load ratings : C0r(kN)391
Fatigue load limit : Cu(kN)50.4
Limiting speeds(Grease lub.)(min-1)1700
Limiting speeds(Oil lub.)(min-1)2300
Load center spread : a(mm)62.7
Constant e0.83
Axial load factors : Y10.73
Axial load factors : Y00.40

Mounting dimensions,weight (reference)

da(min.)(mm)113 mm
db(max.)(mm)113 mm
Da(max.)(mm)186 mm
da(min.)(mm)157 mm
db(min.)(mm)187 mm
Sa(min.)(mm)6 mm
Sb(min.)(mm)17.5 mm
ra(max.)(mm)3 mm
rb(max.)(mm)2.5 mm
Mass(Refer.)(kg)6.68 kg
JTEKT

2026/07/07