Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Inch series
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Bearing No. LM503349R/10

Specifications
(Boundary dimensions ...etc)

d(mm)45.987
D(mm)74.976
T(mm)18.000
B(mm)18.000
C(mm)14.000
r(min.)(mm)2.4
r1(min.)(mm)1.6
Basic load ratings : Cr(kN)66.2
Basic load ratings : C0r(kN)74.6
Fatigue load limit : Cu(kN)10.8
Limiting speeds(Grease lub.)(min-1)5000
Limiting speeds(Oil lub.)(min-1)6600
Load center spread : a(mm)16.0
Constant :e()0.40
Axial load factors : Y1()1.49
Axial load factors : Y0()0.82

Mounting dimensions

da(mm)53.0
db(mm)51.0
Da(mm)67.0
Db(mm)72.0
ra(max.)(mm)2.4
rb(max.)(mm)1.6

Refer.

(Refer.)Mass(kg) 0.302
JTEKT

2025/06/01