Koyo
FOR REFERENCE ONLY
  • Deep groove ball bearings
  • Double-row
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Bearing No. 4209

Specifications
(Boundary dimensions ...etc)

d(mm)45
D(mm)85
B(mm)23
r(min.)(mm)1.1
Basic load ratings : Cr(kN)39.8
Basic load ratings : C0r(kN)43.9
Fatigue load limit : Cu(kN)2.45
factor : f0()15.8
Limiting speeds(Grease lub.)(min-1)4600
Limiting speeds(Oil lub.)(min-1)6100

Mounting dimensions

Da(max.)(mm)78.5
ra(max.)(mm)1

Refer.

(Refer.)Mass(kg) 0.605
JTEKT

2025/05/09