Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
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Bearing No. 30319DJR

Specifications
(Boundary 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 e()0.83
Axial load factors : Y1()0.73
Axial load factors : Y0()0.40

Mounting dimensions

da(min.)(mm)113
db(max.)(mm)113
Da(max.)(mm)186
Da(min.)(mm)157
Db(min.)(mm)187
Sa(min.)(mm)6
Sb(min.)(mm)17.5
ra(max.)(mm)3
rb(max.)(mm)2.5

Refer.

(Refer.)Mass(kg) 6.68
JTEKT

2025/06/01