Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Inch series
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Bearing No. HM218248/10

Specifications
(Boundary dimensions ...etc)

d(mm)89.974
D(mm)146.975
T(mm)40.000
B(mm)40.000
C(mm)32.500
r(min.)(mm)7.1
r1(min.)(mm)3.6
Basic load ratings : Cr(kN)259
Basic load ratings : C0r(kN)310
Fatigue load limit : Cu(kN)46.6
Limiting speeds(Grease lub.)(min-1)2500
Limiting speeds(Oil lub.)(min-1)3300
Load center spread : a(mm)30.8
Constant :e()0.33
Axial load factors : Y1()1.80
Axial load factors : Y0()0.99

Mounting dimensions

da(mm)112.0
db(mm)99.0
Da(mm)133.0
Db(mm)141.0
ra(max.)(mm)7.1
rb(max.)(mm)3.6

Refer.

(Refer.)Mass(kg) 2.444
JTEKT

2025/05/29