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


Bearing No. 527/522

Specification data (main dimensions, etc.)

d(mm)44.450
D(mm)101.600
T(mm)34.925
B(mm)36.068
C(mm)26.988
r(min.)(mm)3.6
r1(min.)(mm)3.2
Basic load ratings : Cr(kN)164
Basic load ratings : C0r(kN)159
Fatigue load limit : Cu(kN)24.8
Limiting speeds(Grease lub.)(min-1)4000
Limiting speeds(Oil lub.)(min-1)5300
Load center spread : a(mm)22.2
Constant :e0.29
Axial load factors : Y12.10
Axial load factors : Y01.16

Mounting dimensions,weight (reference)

da(mm)59.0 mm
db(mm)53.0 mm
Da(mm)89.0 mm
Db(mm)95.0 mm
ra(max.)(mm)3.6 mm
rb(max.)(mm)3.2 mm
Mass(Refer.)(kg)1.35 kg
JTEKT

2026/07/05