Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Metric series
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Bearing No. 30338

Specifications
(Boundary dimensions ...etc)

d(mm)190
D(mm)400
T(mm)86
B(mm)78
C(mm)65
r(min.)(mm)6
r1(min.)(mm)5
Basic load ratings : Cr(kN)1260
Basic load ratings : C0r(kN)1250
Fatigue load limit : Cu(kN)139
Limiting speeds(Grease lub.)(min-1)880
Limiting speeds(Oil lub.)(min-1)1200
Load center spread : a(mm)73.2
Constant e()0.35
Axial load factors : Y1()1.73
Axial load factors : Y0()0.95

Mounting dimensions

da(min.)(mm)218
db(max.)(mm)241
Da(max.)(mm)378
Da(min.)(mm)342
Db(min.)(mm)370
Sa(min.)(mm)10
Sb(min.)(mm)20
ra(max.)(mm)5
rb(max.)(mm)4

Refer.

(Refer.)Mass(kg) 46.2
JTEKT

2025/06/01