Bearing Numbers
Single row :7220B
DB :7220DB
DF :7220DF
DT :7220DT
Principal dimensions(mm)
d :100
D :180
B :34
r(min) :2.1
r1(min) :1.1
Basic load ratings(N)
Cr :130000
Cor :114000
Basic load ratings(kgf)
Cr :13300
Cor :11700
Value
fo :15.4
Limiting Speed (rpm)
Grease :2800
Oil :3800
Distance of action point(mm)
a :75.7
Abutment and fillet dimensions
da(min) :112
Da(max) :168
ra(max) :2
Weight
(kg) :3.29
Basic load ratings(duplex bearing) (N)
Cr :212000
Cor :229000
Basic load ratings(duplex bearing) (kgf)
Cr :21600
Cor :23300
Limiting Speed(duplex bearing) (rpm)
Grease :2200
Oil :3000
Distance of action point (duplex bearing)(a0)
back-to-back arrangement :151.5
face-to-face arrangement :83.5
Installation dimensions(duplex bearing)
db(min) :107
Db(max) :173
rb(max) :1
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