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


Bearing No. 47890R/20

Specification data (main 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 :e0.45
Axial load factors : Y11.34
Axial load factors : Y00.74

Mounting dimensions,weight (reference)

da(mm)107.0 mm
db(mm)101.0 mm
Da(mm)131.0 mm
Db(mm)140.0 mm
ra(max.)(mm)3.6 mm
rb(max.)(mm)3.2 mm
Mass(Refer.)(kg)2.117 kg
JTEKT

2026/07/24