角接触球轴承（单列，公制）
7256B.MP
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详细信息
|
d
[mm]
|
280
|
|
D
[mm]
|
500
|
|
B
[mm]
|
80
|
|
d1
[mm]
|
≈
367.3
|
|
D1
[mm]
|
≈
418.8
|
|
r1,2
[mm]
|
5
|
|
r3,4
[mm]
|
2
|
|
α0
[°]
|
40
|
|
a
[mm]
|
≈
204
|
|
重量
[kg]
|
≈ 69.3
|
|
da, min
[mm]
|
300
|
|
Da, max
[mm]
|
480
|
|
Db, max
[mm]
|
489
|
|
ra, max
[mm]
|
4
|
|
rb, max
[mm]
|
2
|
|
C
[kN]
|
510
|
|
C0
[kN]
|
830
|
|
Cu
[kN]
|
20.9
|
|
nth
[min-1]
|
1343
|
|
ng
[min-1]
|
1600
|
