滚珠丝杠用推力角接触球轴承的接触角为60º,具有高的轴向刚度,主要承受单向轴向载荷,还能承受定径向载荷。
在承受双向轴向载荷时,要依据载荷的大小和性进行成对配置,在配置时要施加定的予载。机床丝杠对角接触推力球轴承的精度要求与主轴轴承基本相同,般采用2、4公差等。由于系统要求运动灵活和的轴向位移,因此要求轴承应具有低而均匀的摩擦力矩,别是要求有低的启动摩擦力矩。
轴承代码 |
外形尺寸 |
安装尺寸 |
额定载荷 |
限转速 |
预载荷 |
转向 |
卸载 |
摩擦 |
参考填 |
重量 |
||||||||
d |
D |
B |
Rsmin |
a |
da |
Da |
Ra |
Ca |
Coa |
脂 |
油 |
Fao |
Ra |
Fam |
≈ |
|||
mm |
min |
max |
max |
KN |
r/min |
KN |
N/μm |
KN |
Nmm |
g |
Kg |
|||||||
7602020 |
20 |
47 |
14 |
1.0 |
36 |
27.5 |
39.5 |
1.0 |
19.3 |
25 |
12000 |
17000 |
2.3 |
700 |
6.6 |
50 |
1.6 |
0.13 |
7602025 |
25 |
52 |
15 |
1.0 |
41 |
32.0 |
45.0 |
1.0 |
22 |
30.5 |
11000 |
16000 |
2.5 |
770 |
7.2 |
65 |
2.2 |
0.16 |
7602030 |
30 |
62 |
16 |
1.0 |
48 |
39.5 |
52.5 |
1.0 |
26 |
39 |
9000 |
13000 |
2.9 |
890 |
8.3 |
85 |
3 |
0.24 |
7602035 |
35 |
72 |
17 |
1.1 |
55 |
46.5 |
60.5 |
1.4 |
30 |
50 |
8000 |
11000 |
3.3 |
1020 |
9.5 |
115 |
4 |
0.34 |
7602040 |
40 |
80 |
18 |
1.1 |
62 |
53.5 |
68.5 |
1.1 |
37.5 |
64 |
7000 |
9500 |
4.3 |
1180 |
12 |
170 |
5 |
0.44 |
7602045 |
45 |
85 |
19 |
1.1 |
66 |
57.5 |
73.0 |
1.1 |
38 |
68 |
6700 |
9000 |
4.5 |
1240 |
12 |
190 |
6 |
0.50 |
7602050 |
50 |
90 |
20 |
1.1 |
71 |
63.0 |
79.0 |
1.1 |
39 |
75 |
6300 |
8500 |
4.9 |
1360 |
14 |
230 |
7.2 |
0.67 |
7602055 |
55 |
100 |
21 |
1.5 |
78 |
69.5 |
86.5 |
1.5 |
40.5 |
81.5 |
6000 |
8000 |
5.6 |
1390 |
13 |
250 |
8.7 |
0.75 |
7602060 |
60 |
110 |
22 |
1.5 |
86 |
77.0 |
96.0 |
1.5 |
56 |
112 |
5000 |
6700 |
6.5 |
1620 |
18 |
350 |
11 |
0.96 |
7602065 |
65 |
120 |
23 |
1.5 |
92 |
84.5 |
103.5 |
1.5 |
57 |
122 |
4800 |
6000 |
7 |
1750 |
20 |
440 |
15 |
1.32 |
7602070 |
70 |
125 |
24 |
1.5 |
96 |
87.5 |
108.5 |
1.5 |
65.5 |
137 |
4500 |
6000 |
7 |
1880 |
21 |
480 |
17 |
1.45 |
7602075 |
75 |
130 |
25 |
1.5 |
101 |
93.5 |
114.5 |
1.5 |
67 |
150 |
4300 |
5600 |
7.6 |
1880 |
21 |
480 |
17 |
1.45 |
7602080 |
80 |
140 |
26 |
2.0 |
108 |
100.0 |
122.0 |
2.0 |
76.5 |
175 |
4000 |
5300 |
8.9 |
2040 |
25 |
600 |
20 |
1.76 |
7602085 |
85 |
150 |
28 |
2.0 |
116 |
107.0 |
131.0 |
2.0 |
86.5 |
196 |
3800 |
5000 |
10.5 |
2200 |
30 |
760 |
25 |
2.19 |
7602090 |
90 |
160 |
30 |
2.0 |
123 |
113.5 |
133.5 |
2.0 |
98 |
224 |
3600 |
4800 |
11 |
2270 |
31 |
790 |
30 |
2.69 |
7603020 |
20 |
52 |
15 |
1.1 |
39 |
30.5 |
43.5 |
1.1 |
24.5 |
32 |
11000 |
16000 |
2.9 |
780 |
8.3 |
60 |
1.9 |
0.17 |
7603025 |
25 |
62 |
17 |
1.1 |
46 |
38.0 |
52.0 |
1.1 |
28.5 |
41.5 |
9000 |
13000 |
3.3 |
910 |
9.5 |
85 |
3.5 |
0.28 |
7603030 |
30 |
72 |
19 |
1.1 |
53 |
45.0 |
61.0 |
1.1 |
34.5 |
55 |
8000 |
11000 |
4.3 |
1070 |
12 |
130 |
5 |
0.41 |
7603035 |
35 |
80 |
21 |
1.5 |
60 |
51.0 |
67.0 |
1.5 |
36.5 |
61 |
7000 |
9500 |
4.8 |
1190 |
13 |
170 |
6.6 |
0.55 |
7603040 |
40 |
90 |
23 |
1.5 |
68 |
56.5 |
75.7 |
1.5 |
50 |
83 |
6300 |
8500 |
5.6 |
1290 |
16 |
225 |
9.2 |
0.76 |
7603045 |
45 |
100 |
25 |
1.5 |
75 |
64.0 |
85.5 |
1.5 |
58.5 |
104 |
5600 |
7500 |
7 |
1780 |
20 |
300 |
12 |
1.02 |
7603050 |
50 |
110 |
27 |
2.0 |
83 |
72.0 |
94.0 |
2.0 |
69.5 |
127 |
5000 |
6700 |
7.6 |
1600 |
21 |
360 |
16 |
1.33 |
7603055 |
55 |
120 |
29 |
2.0 |
90 |
77.0 |
101.0 |
2.0 |
78 |
146 |
4800 |
6300 |
8.8 |
1720 |
25 |
460 |
20 |
1.69 |
7603060 |
60 |
130 |
31 |
2.1 |
98 |
82.5 |
107.5 |
2.1 |
88 |
166 |
4500 |
6000 |
10 |
1840 |
28 |
540 |
24 |
2.12 |
7603065 |
65 |
140 |
33 |
2.1 |
105 |
91.5 |
118.5 |
2.1 |
100 |
196 |
4000 |
5300 |
12 |
2050 |
34 |
700 |
29 |
2.60 |
7603070 |
70 |
160 |
37 |
2.1 |
120 |
105.5 |
135.5 |
2.1 |
125 |
255 |
3800 |
5000 |
12 |
2100 |
34 |
760 |
34 |
3.16 |
7603075 |
75 |
160 |
37 |
2.1 |
120 |
105.5 |
135.5 |
2.1 |
125 |
255 |
3600 |
4800 |
14.5 |
2330 |
41 |
920 |
41 |
3.79 |
7603080 |
80 |
170 |
39 |
2.1 |
128 |
111.0 |
143.0 |
2.1 |
137 |
285 |
3400 |
4500 |
16 |
2460 |
46 |
1100 |
49 |
4.50 |
7603085 |
85 |
180 |
41 |
3.0 |
135 |
116.0 |
151.0 |
3.0 |
160 |
325 |
3200 |
4300 |
17.5 |
2530 |
50 |
1250 |
55 |
5.29 |
7603090 |
90 |
190 |
43 |
3.0 |
143 |
122.5 |
157.5 |
3.0 |
163 |
345 |
3000 |
4000 |
18 |
2650 |
51 |
1300 |
65 |
6.17 |