圆柱滚子轴承（多列，带保持架）
NNU6944M
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详细信息
|
d
[mm]
|
220
|
|
D
[mm]
|
300
|
|
B
[mm]
|
145
|
|
F
[mm]
|
244.75
|
|
D1
[mm]
|
≈
270.35
|
|
ds
[mm]
|
3.2
|
|
ns
[mm]
|
6.5
|
|
r1,2
[mm]
|
2.1
|
|
r3,4
[mm]
|
2.1
|
|
s
[mm]
|
5
|
|
重量
[kg]
|
≈ 31.4
|
|
da, min
[mm]
|
242
|
|
Da, max
[mm]
|
290
|
|
ra, max
[mm]
|
2.1
|
|
rb, max
[mm]
|
2.1
|
|
C
[kN]
|
890
|
|
C0
[kN]
|
2410
|
|
Cu
[kN]
|
250
|
|
ng
[min-1]
|
2200
|
