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


Bearing No. 49585/20

Specification data (main dimensions, etc.)

d(mm)50.800
D(mm)101.600
T(mm)31.750
B(mm)31.750
C(mm)25.400
r(min.)(mm)3.6
r1(min.)(mm)3.2
Basic load ratings : Cr(kN)143
Basic load ratings : C0r(kN)143
Fatigue load limit : Cu(kN)21.9
Limiting speeds(Grease lub.)(min-1)3900
Limiting speeds(Oil lub.)(min-1)5200
Load center spread : a(mm)24.1
Constant :e0.40
Axial load factors : Y11.50
Axial load factors : Y00.82

Mounting dimensions,weight (reference)

da(mm)66.0 mm
db(mm)59.0 mm
Da(mm)88.0 mm
Db(mm)96.0 mm
ra(max.)(mm)3.6 mm
rb(max.)(mm)3.2 mm
Mass(Refer.)(kg)1.12 kg
JTEKT

2026/07/05