Bearing Numbers
Single row :7221B
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 :142000
Кор :129000
Basic load ratings(kgf)
Кр :14500
Кор :13100
Value
fo :15.4
Limiting Speed (rpm)
Смазка :2600
Масло :3600
Distance of action point(mm)
a :79.9
Abutment and fillet dimensions
da(min) :117
Da(max) :178
ra(max) :2
Масса
(kg) :3.92
Basic load ratings(duplex bearing) (N)
Кр :231000
Кор :258000
Basic load ratings(duplex bearing) (kgf)
Кр :23500
Кор :26300
Limiting Speed(duplex bearing) (rpm)
Смазка :2200
Масло :3000
Distance of action point (duplex bearing)(a0)
back-to-back arrangement :159.8
face-to-face arrangement :87.8
Installation dimensions(duplex bearing)
db(min) :112
Db(max) :183
rb(max) :1
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