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ANSI B92.1-1970
MAXIMUM TOLERANCE FOR SPACE WIDTH AND
TOOTH THICKNESS OF TOLERANCE
CLASS 5 SPLINES
| P/Ps |
2.5/5
and 3/6 |
4/8and
5/10 |
6/12
and 8/16 |
10/20
and 12/24 |
16/32
and 20/40 |
24/48
and 48/96 |
64/128
and 48/96 |
128/256 |
| N |
Machining
Tolerances, m |
10
20
30
40 |
15.8
17.6
18.4
21.8 |
14.5
16.0
17.5
19.0 |
12.5
14.0
15.5
17.0 |
12.0
13.0
14.0
15.0 |
11.7
12.4
13.1
13.8 |
11.7
12.4
13.1
13.8 |
9.6
10.2
10.8
11.4 |
9.5
10.0
10.5
- |
50
60
70
80 |
23.0
24.8
-
- |
20.5
22.0
-
- |
18.5
20.0
-
- |
16.0
17.0
18.0
19.0 |
14.5
15.2
15.9
16.6 |
14.5
15.2
15.9
16.6 |
-
-
-
- |
-
-
-
- |
90
100 |
-
- |
-
- |
-
- |
20.0
21.0 |
17.3
18.0 |
17.3
18.0 |
-
- |
-
- |
| N |
Variation
Allowance, Y |
10
20
30
40 |
23.5
27.0
30.5
34.0 |
20.3
22.6
24.9
27.2 |
17.0
19.0
21.0
23.0 |
15.7
17.4
19.1
21.6 |
14.2
15.4
16.6
17.8 |
12.2
13.4
14.6
15.8 |
11.0
12.0
13.0
14.0 |
9.8
10.6
11.4
- |
50
60
70
80 |
37.5
41.0
-
- |
29.5
31.8
-
- |
25.0
27.0
-
- |
22.5
24.2
25.9
27.6 |
19.0
20.2
21.4
22.6 |
17.0
18.2
19.4
20.6 |
-
-
-
- |
-
-
-
- |
90
100 |
-
- |
-
- |
-
- |
29.3
31.0 |
23.8
25.0 |
21.8
23.0 |
-
- |
-
- |
| N |
Total
Index Variation |
10
20
30
40 |
20
24
28
32 |
17
20
22
25 |
15
18
20
22 |
15
17
19
20 |
14
15
16
18 |
12
13
15
16 |
11
12
14
15 |
10
11
13
- |
50
60
70
80 |
36
40
-
- |
27
30
-
- |
25
27
-
- |
22
24
26
28 |
19
20
21
22 |
17
18
20
21 |
-
-
-
- |
-
-
-
- |
90
100 |
-
- |
-
- |
-
- |
29
31 |
24
25 |
23
24 |
-
- |
-
- |
| N |
Profile
Variation |
ALL
|
7
-10 |
6
-8 |
5
-7 |
4
-6 |
3
-5 |
2
-4 |
2
-4 |
2
-4 |
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