Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Inch series
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Bearing No. LM104949/11

Specifications
(Boundary dimensions ...etc)

d(mm)50.800
D(mm)82.550
T(mm)21.590
B(mm)22.225
C(mm)16.510
r(min.)(mm)3.6
r1(min.)(mm)1.2
Basic load ratings : Cr(kN)77.0
Basic load ratings : C0r(kN)84.3
Fatigue load limit : Cu(kN)12.5
Limiting speeds(Grease lub.)(min-1)4500
Limiting speeds(Oil lub.)(min-1)6000
Load center spread : a(mm)16.4
Constant :e()0.31
Axial load factors : Y1()1.97
Axial load factors : Y0()1.08

Mounting dimensions

da(mm)62.0
db(mm)55.0
Da(mm)75.0
Db(mm)78.0
ra(max.)(mm)3.6
rb(max.)(mm)1.2

Refer.

(Refer.)Mass(kg) 0.418
JTEKT

2025/08/02