四点接触球轴承（公制）
QJ1944MPA
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详细信息
|
d
[mm]
|
220
|
|
D
[mm]
|
300
|
|
B
[mm]
|
38
|
|
d1
[mm]
|
≈
247.6
|
|
D1
[mm]
|
≈
272.4
|
|
r1,2
[mm]
|
2.1
|
|
α0
[°]
|
35
|
|
a
[mm]
|
≈
182
|
|
重量
[kg]
|
≈ 8.53
|
|
da, min
[mm]
|
230.2
|
|
Da, max
[mm]
|
289.8
|
|
ra, max
[mm]
|
2.1
|
|
C
[kN]
|
299
|
|
C0
[kN]
|
483
|
|
Cu
[kN]
|
14.8
|
|
nth
[min-1]
|
1760
|
|
ng
[min-1]
|
3200
|
