SCW 型轴装式圆弧圆柱蜗杆减速器(JB/T6387 — 1992)直接套装在工作机主轴上,包括
SCWU ,SCWS,SCWO 三个系列。其工程传动比主要有
5
6.3
8
10
12.5
16
20
25
31.5
40
50
63
实际传动比为蜗轮齿数/蜗杆头数,为配凑中心距以及蜗轮变位加工而产生的实际传动比和公称传动比稍有差距,下面是公称传动比和实际传动比的对照:
中心距
a/mm
|
公称传动比iN
|
5
|
6.3
|
8
|
10
|
12.5
|
16
|
20
|
25
|
31.5
|
40
|
50
|
63
|
实际传动比iN
|
63
|
4.80
|
6.25
|
7.75
|
10.33
|
12.67
|
15.50
|
19.50
|
24.50
|
31
|
39
|
49
|
—
|
80
|
4.80
|
6.25
|
8.25
|
10.33
|
12.33
|
15.50
|
20.50
|
25.50
|
31
|
41
|
51
|
59
|
100
|
4.80
|
6.25
|
8.25
|
10.33
|
12.33
|
15.50
|
20.50
|
24.50
|
31
|
41
|
50
|
60
|
125
|
4.80
|
6.25
|
8.25
|
10.33
|
12.33
|
15.50
|
20.50
|
25.50
|
30
|
41
|
50
|
59
|
140
|
—
|
5.80
|
7.25
|
10.33
|
11.67
|
15.50
|
19.50
|
25.50
|
31
|
39
|
51
|
58
|
160
|
4.80
|
6.25
|
8.50
|
10.33
|
12.33
|
15.50
|
20.50
|
24.50
|
31
|
41
|
50
|
61
|
180
|
—
|
5.80
|
7.25
|
9.67
|
12.00
|
16.50
|
19.50
|
26
|
33
|
40
|
52
|
60
|
200
|
4.80
|
6.25
|
8.25
|
10.33
|
12.67
|
15.50
|
20.50
|
25.50
|
31
|
41
|
50
|
60
|
225
|
—
|
5.80
|
7.25
|
10.67
|
12.00
|
16
|
19.50
|
26
|
32
|
40
|
52
|
58
|
250
|
4.80
|
6.25
|
8.25
|
10.33
|
12.33
|
15.50
|
20.50
|
25.50
|
31
|
41
|
50
|
59
|
280
|
—
|
5.80
|
7.25
|
10.67
|
12.00
|
16
|
19.50
|
25.50
|
32
|
39
|
51
|
59
|
315
|
4.80
|
6.25
|
8.25
|
10.33
|
12.67
|
15.50
|
20.50
|
24.50
|
31
|
41
|
50
|
59
|
|