Description
Involute gear cutters are machine form relieved – the profile remains constant throughout cutter life, provided that on re-sharpening, the face of the tooth is ground radial-to-center.
Involute Gear Cutter Module Pitch 20P.A. and 14.1/2 P.A. As per BS: 2518-1954
How to measure
Dia Pitch | Dia (mm) | Bore (mm) |
---|---|---|
1 | 57 | 22 |
1.25 | 57 | 22 |
1.5 | 64 | 22 |
1.75 | 64 | 22 |
2 | 67 | 22 |
2 | 67 | 27 |
2 | 73 | 32 |
2.25 | 67 | 22 |
2.25 | 67 | 27 |
2.25 | 73 | 32 |
2.5 | 70 | 27 |
2.5 | 77 | 32 |
2.75 | 70 | 27 |
2.75 | 77 | 32 |
3 | 73 | 27 |
3 | 83 | 32 |
3.25 | 77 | 27 |
3.5 | 77 | 27 |
3.5 | 86 | 32 |
3.75 | 80 | 27 |
3.75 | 86 | 32 |
4 | 80 | 27 |
4 | 90 | 32 |
4 | 100 | 40 |
4.5 | 86 | 27 |
4.5 | 96 | 32 |
4.5 | 105 | 40 |
5 | 86 | 27 |
5 | 96 | 32 |
5 | 105 | 40 |
5.5 | 90 | 27 |
5.5 | 105 | 32 |
5.5 | 110 | 40 |
6 | 96 | 27 |
6 | 108 | 32 |
6 | 118 | 40 |
6.5 | 105 | 27 |
6.5 | 110 | 32 |
6.5 | 120 | 40 |
7 | 115 | 32 |
7 | 124 | 40 |
8 | 125 | 32 |
9 | 125 | 32 |
10 | 125 | 32 |
10 | 140 | 40 |
11 | 140 | 40 |
12 | 152 | 40 |
12 | 160 | 40 |
14 | 155 | 40 |
16 | 180 | 50 |
18 | 180 | 50 |
20 | 200 | 50 |
22 | 205 | 50 |
24/25 | 225 | 50 |