Koyo
FOR REFERENCE ONLY
  • Self-aligning ball bearings
  • Open type
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Bearing No. 2303

Specifications
(Boundary dimensions ...etc)

d(mm)17
D(mm)47
B(mm)19
r(min.)(mm)1
Basic load ratings : Cr(kN)18.1
Basic load ratings : C0r(kN)3.60
Fatigue load limit : Cu(kN)0.23
Limiting speeds(Grease lub.)(min-1)13000
Limiting speeds(Oil lub.)(min-1)18000
Constant :e()0.49
Axial load factors : Y1()1.28
Axial load factors : Y2()1.98
Axial load factors : Y0()1.34

Mounting dimensions

da(min.)(mm)22
Da(max.)(mm)42
ra(max.)(mm)1

Refer.

(Refer.)Mass(kg) 0.158
JTEKT

2025/07/14