Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Inch series
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Bearing No. 47890R/20

Specifications
(Boundary dimensions ...etc)

d(mm)92.075
D(mm)146.050
T(mm)33.338
B(mm)34.925
C(mm)26.195
r(min.)(mm)3.6
r1(min.)(mm)3.2
Basic load ratings : Cr(kN)223
Basic load ratings : C0r(kN)293
Fatigue load limit : Cu(kN)43.2
Limiting speeds(Grease lub.)(min-1)2500
Limiting speeds(Oil lub.)(min-1)3300
Load center spread : a(mm)32.6
Constant :e()0.45
Axial load factors : Y1()1.34
Axial load factors : Y0()0.74

Mounting dimensions

da(mm)107.0
db(mm)101.0
Da(mm)131.0
Db(mm)140.0
ra(max.)(mm)3.6
rb(max.)(mm)3.2

Refer.

(Refer.)Mass(kg) 2.117
JTEKT

2025/06/01