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Gear Cutters
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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.
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.
For 14 1/2° Gear Pressure Angle—Cutters for 14½° Gear Pressure Angle—The former industry standard, these gears are often found in older machinery.
Mill | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
For Number of Gear Teeth | Gear Cutter Trade No. | Thk. | Dia. | Arbor Hole Dia. | Keyway Wd. | Material | For Use On | Each | |||
For 14 1/2° Gear Pressure Angle | |||||||||||
For 48 Gear Pitch | |||||||||||
| 135 and Up | 1 | 0.236" | 1 3/4" | 7/8" | 0.125" | Uncoated High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 3034A123 | 000000 | ||
| 55-134 | 2 | 0.236" | 1 3/4" | 7/8" | 0.125" | Uncoated High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 3034A223 | 00000 | ||
| 35-54 | 3 | 0.236" | 1 3/4" | 7/8" | 0.125" | Uncoated High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 3034A323 | 00000 | ||
| 26-34 | 4 | 0.236" | 1 3/4" | 7/8" | 0.125" | Uncoated High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 3034A423 | 00000 | ||
| 21-25 | 5 | 0.236" | 1 3/4" | 7/8" | 0.125" | Uncoated High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 3034A523 | 00000 | ||
| 17-20 | 6 | 0.236" | 1 3/4" | 7/8" | 0.125" | Uncoated High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 3034A623 | 00000 | ||
| 14-16 | 7 | 0.236" | 1 3/4" | 7/8" | 0.125" | Uncoated High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 3034A724 | 00000 | ||
| 12-13 | 8 | 0.236" | 1 3/4" | 7/8" | 0.125" | Uncoated High-Speed Steel | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 3034A823 | 00000 | ||
