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25-year production experience

d:
D:
B:
7900 Series

7900 Series

Dimension and Parameters

Bearing Numbers
Single row :7928A5
DB :7928DB
DF :7928DF
DT :7928DT
Principal dimensions(mm)
d :140
D :190
B :24
r(min) :1.5
r1(min) :1
Basic load ratings(N)
Cr :75000
Cor :90000
Basic load ratings(kgf)
Cr :7650
Cor :9200
Value
fo :16.4
Limiting Speed (rpm)
Grease :4000
Oil :5600
Distance of action point(mm)
a :50.5
Abutment and fillet dimensions
da(min) :149
Da(max) :181
ra(max) :1.5
Weight
(kg) :1.63
Basic load ratings(duplex bearing) (N)
Cr :122000
Cor :180000
Basic load ratings(duplex bearing) (kgf)
Cr :12400
Cor :18400
Limiting Speed(duplex bearing) (rpm)
Grease :3200
Oil :4500
Distance of action point (duplex bearing)(a0)
back-to-back arrangement :100.9
face-to-face arrangement :52.9
Installation dimensions(duplex bearing)
db(min) :-
Db(max) :184
rb(max) :1