Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Inch series
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Bearing No. 68463/712

Specifications
(Boundary dimensions ...etc)

d(mm)117.475
D(mm)180.975
T(mm)34.925
B(mm)31.750
C(mm)25.400
r(min.)(mm)7.9
r1(min.)(mm)3.2
Basic load ratings : Cr(kN)216
Basic load ratings : C0r(kN)247
Fatigue load limit : Cu(kN)35.1
Limiting speeds(Grease lub.)(min-1)2000
Limiting speeds(Oil lub.)(min-1)2700
Load center spread : a(mm)40.6
Constant :e()0.50
Axial load factors : Y1()1.21
Axial load factors : Y0()0.66

Mounting dimensions

da(mm)141.0
db(mm)125.0
Da(mm)163.0
Db(mm)172.0
ra(max.)(mm)7.9
rb(max.)(mm)3.2

Refer.

(Refer.)Mass(kg) 2.66
JTEKT

2025/06/01