Koyo
FOR REFERENCE ONLY
  • Self-aligning ball bearings
  • Open type
>

Bearing No. 1304

Specifications
(Boundary dimensions ...etc)

d(mm)20
D(mm)52
B(mm)15
r(min.)(mm)1.1
Basic load ratings : Cr(kN)15.5
Basic load ratings : C0r(kN)3.35
Fatigue load limit : Cu(kN)0.21
Limiting speeds(Grease lub.)(min-1)13000
Limiting speeds(Oil lub.)(min-1)15000
Constant :e()0.30
Axial load factors : Y1()2.12
Axial load factors : Y2()3.28
Axial load factors : Y0()2.22

Mounting dimensions

da(min.)(mm)26.5
Da(max.)(mm)45.5
ra(max.)(mm)1

Refer.

(Refer.)Mass(kg) 0.163
JTEKT

2025/05/14