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Koyo 3478/20
(BRAND)：KOYO
(Availability)：In Stock
Specifications
(Boundary dimensions ...etc)
d
34.925 mm
D
79.375 mm
T
29.370 mm
B
29.771 mm
C
23.812 mm
r(min.)
3.6 mm
r1(min.)
3.2 mm
Basic load ratings : Cr
109 kN
Basic load ratings : C0r
105 kN
Fatigue load limit : Cu
15.7 kN
Limiting speeds(Grease lub.)
5200 min-1
Limiting speeds(Oil lub.)
6900 min-1
Load center spread : a
20.8 mm
Constant :e
0.37
Axial load factors : Y1
1.64
Axial load factors : Y0
0.90
Mounting dimensions
da
50.0 mm
db
43.5 mm
Da
67.0 mm
Db
74.0 mm
ra(max.)
3.6 mm
rb(max.)
3.2 mm
Refer.
(Refer.)Mass
0.718 kg
