Bearing Numbers
Single row :7921C
DB :7921DB
DF :7921DF
DT :7921DT
Principal dimensions(mm)
д :105
Д :145
Б :20
r(min) :1.1
r1(min) :0.6
Basic load ratings(N)
Кр :51000
Кор :57000
Basic load ratings(kgf)
Кр :5200
Кор :5800
Value
fo :16.5
Limiting Speed (rpm)
Смазка :6300
Масло :9000
Distance of action point(mm)
a :26.7
Abutment and fillet dimensions
da(min) :112
Da(max) :138
ra(max) :1
Масса
(kg) :0.826
Basic load ratings(duplex bearing) (N)
Кр :83000
Кор :114000
Basic load ratings(duplex bearing) (kgf)
Кр :8450
Кор :11600
Limiting Speed(duplex bearing) (rpm)
Смазка :5300
Масло :7100
Distance of action point (duplex bearing)(a0)
back-to-back arrangement :53.5
face-to-face arrangement :13.5
Installation dimensions(duplex bearing)
db(min) :-
Db(max) :140
rb(max) :0.6
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