Principal dimensions£¨mm£© |
d
|
17 |
D
|
30 |
B
|
7 |
r(min)
|
0.3 |
r1(min)
|
0.15 |
Basic load ratings(N) |
Cr
|
4750 |
Cor
|
2800 |
Basic load ratings{kgf} |
Cr
|
485 |
Cor
|
286 |
|
Value£¨fo£©
|
15.1 |
Speed ratings(rpm) |
Grease
|
30000 |
Oil
|
40000 |
Distance of action point |
a£¨mm£©
|
9 |
Abutment and fillet dimensions (mm) |
da(min)
|
19.5 |
Da(max)
|
27.5 |
ra(max)
|
0.3 |
|
Weight(g)
|
0.017 |
Designation |
Single row
|
7903A5 |
DB
|
7903DB |
DF
|
7903DF |
DT
|
7903DT |
Basic load ratings(duplex bearing)(N) |
Cr
|
7750 |
Cor
|
5600 |
Basic load ratings(duplex bearing){kgf} |
Cr
|
790 |
Cor
|
570 |
Limiting Speed (rpm) (Duplex bearing) |
Grease
|
24000 |
Oil
|
32000 |
Distance of action point(Duplex bearing) |
a0(mm)Back-to-back arrangement
|
18 |
a0(mm)Face-to-face arrangement
|
4 |
Installation dimensions(duplex bearing) |
dbmin
|
- |
Dbmax
|
28.8 |
rbmax
|
0.15 |
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