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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.
Some carbon steel gears have hardened teeth for even better wear resistance. Gears with teeth that are not hardened can be hardened to fit your application.
Stainless steel gears and racks resist rust in damp and wet environments, so they're commonly used in food-processing plants and other areas with frequent cleaning. Gears with a clamping bore have a built-in clamp that securely grips shafts without marring them. Use the included clamping screw to tighten or loosen the grip.
For technical drawings and 3-D models, click on a part number.
Hub | |||||||||||||
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Gear Pitch | Number of Teeth | Gear Pitch Dia. | OD | Face Wd. | Overall Wd. | For Shaft Dia. | Material | Teeth Heat Treatment | Dia. | Wd. | Set Screw Thread Size | Each | |
Round Bore with Set Screw | |||||||||||||
64 | 36 | 0.563" | 0.59" | 3/16" | 0.437" | 1/4" | 303 Stainless Steel | Not Hardened | 0.5" | 0.25" | 6-32 | 0000000 | 000000 |
64 | 48 | 3/4" | 0.78" | 3/16" | 0.437" | 1/4" | 303 Stainless Steel | Not Hardened | 0.5" | 0.25" | 6-32 | 0000000 | 00000 |
48 | 30 | 5/8" | 0.67" | 3/16" | 0.437" | 1/4" | 303 Stainless Steel | Not Hardened | 0.5" | 0.25" | 6-32 | 0000000 | 00000 |
48 | 36 | 3/4" | 0.79" | 3/16" | 0.437" | 1/4" | 303 Stainless Steel | Not Hardened | 0.5" | 0.25" | 6-32 | 0000000 | 00000 |
48 | 48 | 1" | 1.04" | 3/16" | 0.437" | 1/4" | 303 Stainless Steel | Not Hardened | 0.5" | 0.25" | 6-32 | 0000000 | 00000 |
32 | 20 | 5/8" | 0.69" | 3/16" | 0.437" | 1/4" | 303 Stainless Steel | Not Hardened | 0.5" | 0.25" | 6-32 | 0000000 | 00000 |
32 | 24 | 3/4" | 0.81" | 3/16" | 0.437" | 1/4" | 303 Stainless Steel | Not Hardened | 0.5" | 0.25" | 6-32 | 0000000 | 00000 |
32 | 32 | 1" | 1.06" | 3/16" | 0.437" | 1/4" | 303 Stainless Steel | Not Hardened | 0.5" | 0.25" | 6-32 | 0000000 | 00000 |
32 | 36 | 1 1/8" | 1.19" | 3/16" | 0.437" | 1/4" | 303 Stainless Steel | Not Hardened | 0.5" | 0.25" | 6-32 | 0000000 | 00000 |
32 | 48 | 1 1/2" | 1.56" | 3/16" | 0.437" | 1/4" | 303 Stainless Steel | Not Hardened | 0.5" | 0.25" | 6-32 | 0000000 | 00000 |
32 | 64 | 2" | 2.06" | 3/16" | 0.437" | 1/4" | 303 Stainless Steel | Not Hardened | 0.5" | 0.25" | 6-32 | 0000000 | 00000 |
32 | 72 | 2 1/4" | 2.31" | 3/16" | 0.437" | 1/4" | 303 Stainless Steel | Not Hardened | 0.5" | 0.25" | 6-32 | 0000000 | 00000 |
24 | 15 | 5/8" | 0.71" | 3/16" | 0.437" | 1/4" | 303 Stainless Steel | Not Hardened | 0.5" | 0.25" | 6-32 | 0000000 | 00000 |
24 | 18 | 3/4" | 0.83" | 3/16" | 0.437" | 1/4" | 303 Stainless Steel | Not Hardened | 0.5" | 0.25" | 6-32 | 0000000 | 00000 |
24 | 24 | 1" | 1.08" | 3/16" | 0.437" | 1/4" | 303 Stainless Steel | Not Hardened | 0.5" | 0.25" | 6-32 | 0000000 | 00000 |
24 | 36 | 1 1/2" | 1.58" | 3/16" | 0.437" | 1/4" | 303 Stainless Steel | Not Hardened | 0.5" | 0.25" | 6-32 | 0000000 | 00000 |
24 | 48 | 2" | 2.08" | 3/16" | 0.437" | 1/4" | 303 Stainless Steel | Not Hardened | 0.5" | 0.25" | 6-32 | 0000000 | 00000 |
24 | 60 | 2 1/2" | 2.58" | 3/16" | 0.437" | 1/4" | 303 Stainless Steel | Not Hardened | 0.5" | 0.25" | 6-32 | 0000000 | 00000 |
Hub | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | Clamping Screw Thread Size | Each | |
Round Bore | |||||||||||||
1 | 15 | 15 | 17 | 10 | 30 | 8 | 303 Stainless Steel | Not Hardened | 17 | 20 | __ | 00000000 | 000000 |
1 | 16 | 16 | 18 | 10 | 30 | 8 | 303 Stainless Steel | Not Hardened | 18 | 20 | __ | 00000000 | 00000 |
1 | 18 | 18 | 20 | 10 | 30 | 8 | 303 Stainless Steel | Not Hardened | 20 | 20 | __ | 00000000 | 00000 |
1 | 20 | 20 | 22 | 10 | 20 | 8 | 303 Stainless Steel | Not Hardened | 16 | 10 | __ | 00000000 | 00000 |
1 | 24 | 24 | 26 | 10 | 20 | 8 | 303 Stainless Steel | Not Hardened | 20 | 10 | __ | 00000000 | 00000 |
1 | 30 | 30 | 32 | 10 | 20 | 8 | 303 Stainless Steel | Not Hardened | 25 | 10 | __ | 00000000 | 00000 |
1 | 32 | 32 | 34 | 10 | 20 | 8 | 303 Stainless Steel | Not Hardened | 26 | 10 | __ | 00000000 | 00000 |
1 | 40 | 40 | 42 | 10 | 20 | 10 | 303 Stainless Steel | Not Hardened | 35 | 10 | __ | 00000000 | 00000 |
1 | 42 | 42 | 44 | 10 | 20 | 10 | 303 Stainless Steel | Not Hardened | 35 | 10 | __ | 00000000 | 00000 |
1 | 50 | 50 | 52 | 10 | 20 | 10 | 303 Stainless Steel | Not Hardened | 35 | 10 | __ | 00000000 | 00000 |
1 | 56 | 56 | 58 | 10 | 20 | 10 | 303 Stainless Steel | Not Hardened | 40 | 10 | __ | 00000000 | 00000 |
1 | 60 | 60 | 62 | 10 | 20 | 10 | 303 Stainless Steel | Not Hardened | 40 | 10 | __ | 00000000 | 00000 |
1 | 80 | 80 | 82 | 10 | 20 | 10 | 303 Stainless Steel | Not Hardened | 60 | 10 | __ | 00000000 | 000000 |
1 | 120 | 120 | 122 | 10 | 20 | 12 | 303 Stainless Steel | Not Hardened | 60 | 10 | __ | 00000000 | 000000 |
1.5 | 15 | 22.5 | 25 | 15 | 29 | 8 | 303 Stainless Steel | Not Hardened | 18 | 14 | __ | 00000000 | 00000 |
1.5 | 16 | 24 | 27 | 15 | 29 | 8 | 303 Stainless Steel | Not Hardened | 20 | 14 | __ | 00000000 | 00000 |
1.5 | 18 | 27 | 30 | 15 | 29 | 8 | 303 Stainless Steel | Not Hardened | 22 | 14 | __ | 00000000 | 00000 |
1.5 | 20 | 30 | 33 | 15 | 29 | 8 | 303 Stainless Steel | Not Hardened | 24 | 14 | __ | 00000000 | 00000 |
1.5 | 22 | 33 | 36 | 15 | 29 | 8 | 303 Stainless Steel | Not Hardened | 26 | 14 | __ | 00000000 | 00000 |
1.5 | 25 | 37.5 | 40 | 15 | 29 | 8 | 303 Stainless Steel | Not Hardened | 30 | 14 | __ | 00000000 | 00000 |
1.5 | 28 | 42 | 45 | 15 | 29 | 10 | 303 Stainless Steel | Not Hardened | 36 | 14 | __ | 00000000 | 00000 |
1.5 | 32 | 48 | 51 | 15 | 29 | 10 | 303 Stainless Steel | Not Hardened | 40 | 14 | __ | 00000000 | 00000 |
1.5 | 40 | 60 | 63 | 15 | 29 | 12 | 303 Stainless Steel | Not Hardened | 45 | 14 | __ | 00000000 | 000000 |
1.5 | 55 | 82.5 | 85 | 15 | 29 | 12 | 303 Stainless Steel | Not Hardened | 55 | 14 | __ | 00000000 | 000000 |
1.5 | 90 | 135 | 138 | 15 | 29 | 15 | 303 Stainless Steel | Not Hardened | 80 | 14 | __ | 00000000 | 000000 |
1.5 | 100 | 150 | 153 | 15 | 29 | 15 | 303 Stainless Steel | Not Hardened | 80 | 14 | __ | 00000000 | 000000 |
2 | 15 | 30 | 34 | 20 | 36 | 12 | 303 Stainless Steel | Not Hardened | 24 | 16 | __ | 00000000 | 00000 |
2 | 16 | 32 | 36 | 20 | 36 | 12 | 303 Stainless Steel | Not Hardened | 26 | 16 | __ | 00000000 | 00000 |
2 | 18 | 36 | 40 | 20 | 36 | 12 | 303 Stainless Steel | Not Hardened | 30 | 16 | __ | 00000000 | 00000 |
2 | 20 | 40 | 44 | 20 | 36 | 12 | 303 Stainless Steel | Not Hardened | 32 | 16 | __ | 00000000 | 00000 |
2 | 22 | 44 | 48 | 20 | 36 | 12 | 303 Stainless Steel | Not Hardened | 36 | 16 | __ | 00000000 | 00000 |
2 | 25 | 50 | 54 | 20 | 36 | 12 | 303 Stainless Steel | Not Hardened | 40 | 16 | __ | 00000000 | 00000 |
2 | 28 | 56 | 60 | 20 | 36 | 12 | 303 Stainless Steel | Not Hardened | 45 | 16 | __ | 00000000 | 000000 |
2 | 30 | 60 | 64 | 20 | 36 | 12 | 303 Stainless Steel | Not Hardened | 50 | 16 | __ | 00000000 | 000000 |
2.5 | 15 | 37.5 | 42 | 25 | 43 | 15 | 303 Stainless Steel | Not Hardened | 30 | 18 | __ | 00000000 | 00000 |
2.5 | 20 | 50 | 55 | 25 | 43 | 15 | 303 Stainless Steel | Not Hardened | 40 | 18 | __ | 00000000 | 000000 |
2.5 | 30 | 75 | 80 | 25 | 43 | 15 | 303 Stainless Steel | Not Hardened | 65 | 18 | __ | 00000000 | 000000 |
Clamping Bore with Clamping Screw | |||||||||||||
0.5 | 24 | 12 | 13.5 | 7 | 22 | 5 | 303 Stainless Steel | Not Hardened | 14 | 8 | M2.5 | 0000000 | 00000 |
0.5 | 50 | 25 | 26 | 5 | 15 | 6 | 303 Stainless Steel | Not Hardened | 17 | 10 | M3 | 0000000 | 00000 |
1 | 14 | 14 | 16 | 8 | 25 | 6 | 303 Stainless Steel | Not Hardened | 17 | 10 | M3 | 0000000 | 00000 |
1 | 18 | 18 | 20 | 6 | 16 | 6 | 303 Stainless Steel | Not Hardened | 17 | 10 | M3 | 0000000 | 00000 |
1 | 35 | 35 | 37 | 6 | 16 | 8 | 303 Stainless Steel | Not Hardened | 19 | 10 | M3 | 0000000 | 00000 |
1 | 64 | 64 | 66 | 6 | 20 | 10 | 303 Stainless Steel | Not Hardened | 24 | 14 | M4 | 0000000 | 000000 |
1 | 100 | 100 | 102 | 6 | 20 | 10 | 303 Stainless Steel | Not Hardened | 24 | 14 | M4 | 0000000 | 000000 |
Gear Pitch | Lg. | Pitch Ht. | Ht. | Face Wd. | Material | Teeth Heat Treatment | Each | |
64 | 11" | 0.464" | 1/2" | 1/4" | 416 Stainless Steel | Not Hardened | 0000000 | 0000000 |
48 | 18" | 0.459" | 1/2" | 1/4" | 416 Stainless Steel | Not Hardened | 0000000 | 000000 |
32 | 18" | 0.449" | 1/2" | 1/4" | 416 Stainless Steel | Not Hardened | 0000000 | 000000 |
24 | 18" | 0.438" | 1/2" | 1/4" | 416 Stainless Steel | Not Hardened | 0000000 | 000000 |
Module | Lg., mm | Pitch Ht., mm | Ht., mm | Face Wd., mm | Material | Teeth Heat Treatment | Each | |
With Non-Machined Ends | ||||||||
---|---|---|---|---|---|---|---|---|
1 | 500 | 11 | 12 | 10 | 304 Stainless Steel | Hardened | 00000000 | 0000000 |
1.5 | 500 | 18.5 | 20 | 15 | 304 Stainless Steel | Hardened | 00000000 | 000000 |
2 | 500 | 23 | 25 | 20 | 304 Stainless Steel | Hardened | 00000000 | 000000 |
With Machined Ends | ||||||||
1.5 | 1,000 | 18.5 | 20 | 15 | 304 Stainless Steel | Hardened | 00000000 | 000000 |
2 | 1,000 | 23 | 25 | 20 | 304 Stainless Steel | Hardened | 00000000 | 000000 |