Description
The hob is a cutting tool used to cut the teeth into the workpiece. It is cylindrical in shape with helical cutting teeth. These teeth have grooves that run the length of the hob, which aid in cutting and chip removal. There are also special hobs designed for special gears such as the spline and sprocket gears.
| Module | Dia | Length | Bore |
|---|---|---|---|
| 1 | 50 | 31 | 22 |
| 1.25 | 50 | 31 | 22 |
| 1.5 | 56 | 38 | 22 |
| 1.75 | 56 | 38 | 22 |
| 2 | 63 | 46 | 27 |
| 2.25 | 70 | 56 | 27 |
| 2.5 | 70 | 56 | 27 |
| 2.75 | 70 | 56 | 27 |
| 3 | 80 | 69 | 32 |
| 3.25 | 80 | 69 | 32 |
| 3.5 | 80 | 69 | 32 |
| 3.75 | 90 | 78 | 32 |
| 4 | 90 | 78 | 32 |
| 4.5 | 90 | 78 | 32 |
| 5 | 100 | 88 | 32 |
| 5.5 | 100 | 88 | 32 |
| 6 | 115 | 108 | 40 |
| 6.5 | 115 | 108 | 40 |
| 7 | 115 | 108 | 40 |
| 8 | 125 | 138 | 40 |
| 9 | 125 | 138 | 40 |
| 10 | 140 | 170 | 40 |
| 11 | 140 | 170 | 40 |
| 12 | 160 | 195 | 40 |
| 14 | 165 | 225 | 40 |
| 16 | 180 | 250 | 40 |
| 18 | 200 | 250 | 40 |
| 20 | 225 | 250 | 40 |
| 22 | 250 | 300 | 50 |
| 24 | 250 | 300 | 50 |
