Bearing Numbers
Single row :7221A
DB :7221DB
DF :7221DF
DT :7221DT
Principal dimensions(mm)
д :105
Д :190
Б :36
r(min) :2.1
r1(min) :1.1
Basic load ratings(N)
Кр :157000
Кор :142000
Basic load ratings(kgf)
Кр :16000
Кор :14400
Value
fo :15
Limiting Speed (rpm)
Смазка :3800
Масло :5000
Distance of action point(mm)
a :60.6
Abutment and fillet dimensions
da(min) :117
Da(max) :178
ra(max) :2
Масса
(kg) :3.84
Basic load ratings(duplex bearing) (N)
Кр :254000
Кор :283000
Basic load ratings(duplex bearing) (kgf)
Кр :25900
Кор :28900
Limiting Speed(duplex bearing) (rpm)
Смазка :3000
Масло :4000
Distance of action point (duplex bearing)(a0)
back-to-back arrangement :121.2
face-to-face arrangement :49.2
Installation dimensions(duplex bearing)
db(min) :112
Db(max) :183
rb(max) :1
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