Bearing Numbers
Single row :7220A
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 :144000
Cor :126000
Basic load ratings(kgf)
Cr :14700
Cor :12800
Value
fo :15
Limiting Speed (rpm)
Grease :4000
Oil :5300
Distance of action point(mm)
a :57.4
Abutment and fillet dimensions
da(min) :112
Da(max) :168
ra(max) :2
Weight
(kg) :3.22
Basic load ratings(duplex bearing) (N)
Cr :233000
Cor :251000
Basic load ratings(duplex bearing) (kgf)
Cr :23800
Cor :25600
Limiting Speed(duplex bearing) (rpm)
Grease :3200
Oil :4300
Distance of action point (duplex bearing)(a0)
back-to-back arrangement :114.8
face-to-face arrangement :46.8
Installation dimensions(duplex bearing)
db(min) :107
Db(max) :173
rb(max) :1
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