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Metal Gears and Gear Racks—20° Pressure Angle
The current industry standard, these 20° pressure angle gears have thicker, stronger teeth than 14½° pressure angle gears. Compared to plastic gears and racks, they’re better for high-load, high-speed, and heavy duty applications. Also known as spur gears.
Combine gears with different numbers of teeth to change speed and torque in your assembly. Combine a gear and rack to convert rotary motion into linear motion. To minimize your footprint, mount one or more standard gears inside of an internal gear.
For components to mesh correctly, they must have the same pressure angle and pitch/module.
Brass gears and racks are easy to machine, so you can add your own mounting holes and make other alterations. They won't rust when exposed to water.
Carbon steel components have hard, strong, and wear-resistant teeth, although they will rust when exposed to moisture and corrosive chemicals. They're best for high-torque machines, like lifting equipment, and heavy duty applications, such as rock crushing. Gears with teeth that are not hardened can be hardened to fit your application.
For technical drawings and 3-D models, click on a part number.
Hub | Keyway | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Module | Number of Teeth | Gear Pitch Dia., mm | OD, mm | Face Wd., mm | Overall Wd., mm | For Shaft Dia., mm | Material | Teeth Heat Treatment | Dia., mm | Wd., mm | Set Screw Thread Size | Wd., mm | Dp., mm | Each | |
Keyed Bore with Set Screw | |||||||||||||||
| 1 | 32 | 32 | 34 | 6 | 14 | 10 | Brass | __ | 28 | 8 | M4 | 4 | 1.8 | 00000000 | 000000 |
| 1 | 40 | 40 | 42 | 6 | 14 | 10 | Brass | __ | 28 | 8 | M4 | 4 | 1.8 | 00000000 | 00000 |
| 1 | 60 | 60 | 62 | 10 | 20 | 10 | Black-Oxide 1045 Carbon Steel | Not Hardened | 35 | 10 | M4 | 4 | 1.8 | 00000000 | 00000 |
| 1 | 60 | 60 | 62 | 10 | 20 | 12 | Black-Oxide 1045 Carbon Steel | Not Hardened | 35 | 10 | M4 | 4 | 1.8 | 0000000 | 00000 |
| 1.5 | 36 | 54 | 57 | 15 | 25 | 12 | Black-Oxide 1045 Carbon Steel | Not Hardened | 40 | 10 | M4 | 4 | 1.8 | 0000000 | 00000 |
| 1.5 | 40 | 60 | 63 | 15 | 25 | 12 | Black-Oxide 1045 Carbon Steel | Not Hardened | 40 | 10 | M4 | 4 | 1.8 | 00000000 | 00000 |
Metal Miter Gears
With straight, conically shaped teeth and a 1:1 speed ratio, miter gears connect two shafts at an angle without changing shaft speed or torque. They're more efficient than spiral miter gears because they create less friction.
For two gears to mesh correctly, they must have the same pressure angle, shaft angle, pitch/module, and number of teeth.
Carbon steel gears have hard, strong, and wear-resistant teeth. They’re best for heavy duty and high-torque applications, such as lifting equipment. However, these gears will rust when exposed to moisture or corrosive chemicals. Some gears have hardened teeth for additional wear resistance; gears with teeth that are not hardened can be hardened to fit your application.
Stainless steel gears won’t rust in damp or wet environments. They’re commonly used in food-processing plants and other areas where frequent cleaning takes place.
For technical drawings and 3-D models, click on a part number.
Hub | Keyway | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Module | Number of Teeth | For Shaft Angle | Pressure Angle | Gear Pitch Dia., mm | OD, mm | Face Wd., mm | Overall Wd., mm | For Shaft Dia., mm | Mounting Distance, mm | Teeth Heat Treatment | Dia., mm | Wd., mm | Wd., mm | Dp., mm | Set Screw Thread Size | Each | |
Keyed Bore with Set Screw—1045 Carbon Steel | |||||||||||||||||
| 1 | 30 | 90° | 20° | 30 | 31.4 | 6 | 17.7 | 12 | 28 | Hardened | 26 | 10 | 4 | 1.8 | M5 | 000000 | 000000 |
| 1.5 | 20 | 90° | 20° | 30 | 32.1 | 8 | 21.2 | 12 | 30 | Hardened | 26 | 13 | 4 | 1.8 | M5 | 0000000 | 00000 |
Keyed Bore with Set Screw—303 Stainless Steel | |||||||||||||||||
| 2 | 20 | 90° | 20° | 40 | 42.8 | 10 | 24.9 | 12 | 37 | Not Hardened | 34 | 14 | 4 | 1.8 | M4 | 0000000 | 00000 |