Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Inch series
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Bearing No. L521949R/10

Specifications
(Boundary dimensions ...etc)

d(mm)107.950
D(mm)146.050
T(mm)21.432
B(mm)21.432
C(mm)16.670
r(min.)(mm)1.6
r1(min.)(mm)1.6
Basic load ratings : Cr(kN)108
Basic load ratings : C0r(kN)167
Fatigue load limit : Cu(kN)23.5
Limiting speeds(Grease lub.)(min-1)2300
Limiting speeds(Oil lub.)(min-1)3100
Load center spread : a(mm)26.2
Constant :e()0.39
Axial load factors : Y1()1.53
Axial load factors : Y0()0.84

Mounting dimensions

da(mm)116.0
db(mm)114.0
Da(mm)136.0
Db(mm)141.0
ra(max.)(mm)1.6
rb(max.)(mm)1.6

Refer.

(Refer.)Mass(kg) 0.99
JTEKT

2025/06/01