Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Inch series
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Bearing No. 527/522

Specifications
(Boundary 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 :e()0.29
Axial load factors : Y1()2.10
Axial load factors : Y0()1.16

Mounting dimensions

da(mm)59.0
db(mm)53.0
Da(mm)89.0
Db(mm)95.0
ra(max.)(mm)3.6
rb(max.)(mm)3.2

Refer.

(Refer.)Mass(kg) 1.35
JTEKT

2025/06/01