Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Inch series
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Bearing No. 49576/20

Specifications
(Boundary dimensions ...etc)

d(mm)44.450
D(mm)98.425
T(mm)30.162
B(mm)31.750
C(mm)25.400
r(min.)(mm)0.8
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 :e()0.40
Axial load factors : Y1()1.50
Axial load factors : Y0()0.82

Mounting dimensions

da(mm)55.0
db(mm)54.0
Da(mm)88.0
Db(mm)96.0
ra(max.)(mm)0.8
rb(max.)(mm)3.2

Refer.

(Refer.)Mass(kg) 1.24
JTEKT

2025/06/01