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Gear Cutters
Also known as involute gear cutters, these tools work with a milling machine to create 14½° or 20° pressure angle spur gears. If worn, they can be sharpened and used again.
Cutters for 14½° Gear Pressure Angle—The former industry standard, these gears are often found in older machinery.
To select a gear cutter, follow these steps:
1. Determine the pitch of the gear you're cutting. Gear pitch = (No. of Teeth + 2) / OD. Round to the nearest whole number.
2. Select the cutter that matches your gear's pitch and number of teeth.
Mill | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Number of Gear Teeth | Cutter Trade Number | Thick. | Dia. | Arbor Hole Dia. | Keyway Wd. | Material | For Use On | Each | |
For 14 1/2° Gear Pressure Angle | |||||||||
For 6 Gear Pitch  | |||||||||
| 35-54 | 3 | 0.512" | 3 1/8" | 1" | 0.25" | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 0000000 |
| 26-34 | 4 | 0.551" | 3 1/8" | 1" | 0.25" | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 000000 |
| 21-25 | 5 | 0.551" | 3 1/8" | 1" | 0.25" | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 000000 |
| 17-20 | 6 | 0.551" | 3 1/8" | 1" | 0.25" | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 000000 |
| 14-16 | 7 | 0.591" | 3 1/8" | 1" | 0.25" | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 000000 |
| 12-13 | 8 | 0.591" | 3 1/8" | 1" | 0.25" | High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 000000 |