Bearing Numbers
Single row :7311A
DB :7311DB
DF :7311DF
DT :7311DT
Principal dimensions(mm)
d :55
D :120
B :29
r(min) :2
r1(min) :1
Basic load ratings(N)
Cr :86000
Cor :61500
Basic load ratings(kgf)
Cr :8750
Cor :6250
Value
fo :13.9
Limiting Speed (rpm)
Grease :5000
Oil :6700
Distance of action point(mm)
a :39.8
Abutment and fillet dimensions
da(min) :65
Da(max) :110
ra(max) :2
Weight
(kg) :1.41
Basic load ratings(duplex bearing) (N)
Cr :139000
Cor :123000
Basic load ratings(duplex bearing) (kgf)
Cr :14200
Cor :12500
Limiting Speed(duplex bearing) (rpm)
Grease :4000
Oil :5600
Distance of action point (duplex bearing)(a0)
back-to-back arrangement :79.5
face-to-face arrangement :21.5
Installation dimensions(duplex bearing)
db(min) :61
Db(max) :114
rb(max) :1
