Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Inch series
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Bearing No. 17580R/20

Specifications
(Boundary dimensions ...etc)

d(mm)15.875
D(mm)42.862
T(mm)16.670
B(mm)16.670
C(mm)13.495
r(min.)(mm)1.6
r1(min.)(mm)1.6
Basic load ratings : Cr(kN)38.2
Basic load ratings : C0r(kN)29.5
Fatigue load limit : Cu(kN)4.15
Limiting speeds(Grease lub.)(min-1)10000
Limiting speeds(Oil lub.)(min-1)14000
Load center spread : a(mm)10.9
Constant :e()0.33
Axial load factors : Y1()1.81
Axial load factors : Y0()1.00

Mounting dimensions

da(mm)23.0
db(mm)21.0
Da(mm)36.5
Db(mm)39.0
ra(max.)(mm)1.6
rb(max.)(mm)1.6

Refer.

(Refer.)Mass(kg) 0.126
JTEKT

2025/06/01