Koyo
FOR REFERENCE ONLY
  • Deep groove ball bearings
  • Double-row
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Bearing No. 4303

Specifications
(Boundary dimensions ...etc)

d(mm)17
D(mm)47
B(mm)19
r(min.)(mm)1
Basic load ratings : Cr(kN)20.6
Basic load ratings : C0r(kN)15.0
Fatigue load limit : Cu(kN)1.05
factor : f0()13.7
Limiting speeds(Grease lub.)(min-1)9400
Limiting speeds(Oil lub.)(min-1)13000

Mounting dimensions

Da(max.)(mm)42
ra(max.)(mm)1

Refer.

(Refer.)Mass(kg) 0.171
JTEKT

2025/06/01