角接触球轴承（单列，公制）
7248B.MP
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详细信息
|
d
[mm]
|
240
|
|
D
[mm]
|
440
|
|
B
[mm]
|
72
|
|
d1
[mm]
|
≈
319.6
|
|
D1
[mm]
|
≈
365.9
|
|
r1,2
[mm]
|
4
|
|
r3,4
[mm]
|
1.5
|
|
α0
[°]
|
40
|
|
a
[mm]
|
≈
179
|
|
重量
[kg]
|
≈ 49.8
|
|
da, min
[mm]
|
257
|
|
Da, max
[mm]
|
423
|
|
Db, max
[mm]
|
431
|
|
ra, max
[mm]
|
3
|
|
rb, max
[mm]
|
1.5
|
|
C
[kN]
|
440
|
|
C0
[kN]
|
670
|
|
Cu
[kN]
|
18
|
|
nth
[min-1]
|
1584
|
|
ng
[min-1]
|
1900
|
