Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Inch series


Bearing No. 68463/712

Specification data (main 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 :e0.50
Axial load factors : Y11.21
Axial load factors : Y00.66

Mounting dimensions,weight (reference)

da(mm)141.0 mm
db(mm)125.0 mm
Da(mm)163.0 mm
Db(mm)172.0 mm
ra(max.)(mm)7.9 mm
rb(max.)(mm)3.2 mm
Mass(Refer.)(kg)2.66 kg
JTEKT

2026/07/18