American Standard ONF-Fine Tooth (60°) |
Specifications |
Number of teeth (T) |
Outer diameter (D) |
Rolling diameter |
||
Max |
Minimum |
Max |
Minimum |
||
NO:0 |
80 |
1.51 |
1.43 |
1.30 |
1.28 |
NO:1 |
72 |
1.84 |
1.75 |
1.61 |
1.59 |
NO:2 |
64 |
2.17 |
2.07 |
1.91 |
1.89 |
NO:3 |
56 |
2.49 |
2.39 |
2.20 |
2.17 |
NO: 4 |
48 |
2.83 |
2.71 |
2.47 |
2.44 |
NO:5 |
44 |
3.16 |
3.03 |
2.76 |
2.73 |
NO:6 |
40 |
3.48 |
3.35 |
3.05 |
3.02 |
NO:8 |
36 |
4.14 |
4.00 |
3.66 |
3.63 |
NO:10 |
32 |
4.80 |
4.65 |
4.26 |
4.23 |
NO:12 |
28 |
5.46 |
5.29 |
4.85 |
4.81 |
1/4 |
28 |
6.32 |
6.16 |
5.72 |
5.68 |
5/16 |
24 |
7.91 |
7.73 |
7.20 |
7.16 |
3/8 |
24 |
9.50 |
9.31 |
8.76 |
8.74 |
7/16 |
20 |
11.08 |
10.87 |
10.23 |
10.18 |
1/2 |
20 |
12.66 |
12.46 |
11.82 |
11.76 |
9/16 |
18 |
14.25 |
14.03 |
13.31 |
13.25 |
5/8 |
18 |
15.84 |
15.62 |
14.89 |
14.83 |
3/4 |
16 |
19.01 |
18.77 |
17.95 |
17.89 |
7/8 |
14 |
22.18 |
21.92 |
20.98 |
20.91 |
1" |
12 |
25.25 |
25.06 |
23.95 |
23.87 |
11/8 |
12 |
28.53 |
28.24 |
27.12 |
27.05 |