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25-year production experience

d:
D:
B:
7900 Series

7900 Series

Dimension and Parameters

Bearing Numbers
Single row :7917A5
DB :7917DB
DF :7917DF
DT :7917DT
Principal dimensions(mm)
d :85
D :120
B :18
r(min) :1.1
r1(min) :0.6
Basic load ratings(N)
Cr :36500
Cor :38500
Basic load ratings(kgf)
Cr :3750
Cor :3900
Value
fo :16.5
Limiting Speed (rpm)
Grease :6700
Oil :9000
Distance of action point(mm)
a :32.9
Abutment and fillet dimensions
da(min) :92
Da(max) :113
ra(max) :1
Weight
(kg) :0.541
Basic load ratings(duplex bearing) (N)
Cr :59500
Cor :77000
Basic load ratings(duplex bearing) (kgf)
Cr :6100
Cor :7850
Limiting Speed(duplex bearing) (rpm)
Grease :5300
Oil :7500
Distance of action point (duplex bearing)(a0)
back-to-back arrangement :65.8
face-to-face arrangement :29.8
Installation dimensions(duplex bearing)
db(min) :-
Db(max) :115
rb(max) :0.6