Bearing Numbers
Single row :7220C
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 :149000
Cor :127000
Basic load ratings(kgf)
Cr :15200
Cor :12900
Value
fo :14.5
Limiting Speed (rpm)
Grease :5600
Oil :8000
Distance of action point(mm)
a :35.7
Abutment and fillet dimensions
da(min) :112
Da(max) :168
ra(max) :2
Weight
(kg) :3.65
Basic load ratings(duplex bearing) (N)
Cr :242000
Cor :254000
Basic load ratings(duplex bearing) (kgf)
Cr :24700
Cor :25900
Limiting Speed(duplex bearing) (rpm)
Grease :4500
Oil :6300
Distance of action point (duplex bearing)(a0)
back-to-back arrangement :71.5
face-to-face arrangement :3.5
Installation dimensions(duplex bearing)
db(min) :-
Db(max) :173
rb(max) :1
