 |
滚针和推力球组合轴承
Combined Needle Roller and Thrust Roller Bearings
轴径
Shaft
Diameter
mm
|
型号
Designation
|
带罩壳轴承代号
Designation
with Dust Shield
|
尺寸Dimensions
|
基本额定载荷
Basic Load
Ratings
|
极限转速 Limiting Speed rpm |
|||||||||||
Fw
|
D
|
D1
max.
|
D2
max.
|
C
-0.25
|
C1
-0.2
|
C2
|
dw
E8
|
rs min.
|
径向
Radial
|
轴向
Axial
|
||||||
mm
|
动 Cr
Dynamic
|
静 Cor
Static
|
动 Cr
Dynamic
|
静 Cor
Static
|
||||||||||||
N
|
||||||||||||||||
15
|
NKXR15
|
NKXR15Z
|
15
|
24
|
28.1
|
29.2
|
23
|
9
|
6.5
|
15
|
0.3
|
10.7
|
12.7
|
14.4
|
28.5
|
13000 |
17
|
NKXR17
|
NKXR17Z
|
17
|
26
|
30.1
|
31.2
|
25
|
9
|
8
|
17
|
0.3
|
11.9
|
15.0
|
15.9
|
33.5
|
12000 |
20
|
NKXR20
|
NKXR20Z
|
20
|
30
|
35.1
|
36.2
|
30
|
10
|
10.5
|
20
|
0.3
|
16.4
|
23.8
|
24.9
|
53.0
|
10000 |
25
|
NKXR25
|
NKXR25Z
|
25
|
37
|
42.1
|
43.2
|
30
|
11
|
9.5
|
25
|
0.6
|
18.8
|
30.5
|
33.5
|
76.0
|
8500 |
30
|
NKXR30
|
NKXR30Z
|
30
|
42
|
47.1
|
48.2
|
30
|
11
|
9.5
|
30
|
0.6
|
22.6
|
36.0
|
35.5
|
86.0
|
7500 |
35
|
NKXR35
|
NKXR35Z
|
35
|
47
|
52.1
|
53.2
|
30
|
12
|
9
|
35
|
0.6 |
24.3
|
41.5
|
39.0
|
101
|
6500 |
40
|
NKXR40
|
NKXR40Z
|
40
|
52
|
60.1
|
61.2
|
32
|
13
|
10
|
40
|
0.6 |
26.0
|
47.0
|
56.0
|
148
|
6000 |
45
|
NKXR45
|
NKXR45Z
|
45
|
58
|
65.2
|
66.5
|
32
|
14
|
9
|
45
|
0.6 |
27.5
|
53.0
|
59.0
|
163
|
5000 |
50
|
NKXR50
|
NKXR50Z
|
50
|
62
|
70.2
|
71.5
|
35
|
14
|
10
|
50
|
0.6 |
38.0
|
74.0
|
61.0
|
177
|
4800 |
说明：
1、 表中所列基本额定载荷、极限转速和重量，仅供选择参考用。
2、 轴承的保持架如由塑料制成，允许工作温度：120℃连续，180℃短期。 3、 脂润滑时，极限转速为表列数值的60%。 4、 内圈须单独定货。
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