Component Component |
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Gear | Worm |
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Shaft-Mounted Worm |
OD OD |
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Gear Pitch Diameter Gear Pitch Diameter |
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Material Material |
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Input Connection Type Input Connection Type |
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![]() | Shaft Opening |
![]() | Shaft |
Overall Width Overall Width |
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Output Connection Type Output Connection Type |
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![]() | Shaft |
![]() | Shaft Opening |
Maximum Input Horsepower Maximum Input Horsepower |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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About Gears
More
Metal Worms and Worm Gears

Worm gears use screw threads to make large reductions to shaft speed while transmitting motion at a right angle. They transmit motion from worm to gear and cannot be reversed. For gears and worms to mesh correctly, they must have the same pressure angle and pitch/module. These worms are compatible with plastic worm gears.
Speed ratio is the ratio by which output shaft speed is reduced. As speed decreases, torque increases.
1045 carbon steel worms have rolled threads. Hardened 1045 carbon steel worms have ground threads, which are more durable and precise than rolled threads.
303 stainless steel worms won’t rust in wet environments, so they’re commonly used in food-processing plants and other areas with frequent cleaning.
4140 alloy steel worms are already mounted on a shaft, so they’re ready to use with no machining required. The threads are ground into the shaft for higher precision than rolled threads, and hardened for additional durability and precision.
Cast iron gears are strong and durable.
Bronze gears have low friction and dissipate heat better than cast iron gears to provide a long service life for both the gear and the worm. They’re also more corrosion resistant than cast iron gears.
For technical drawings and 3-D models, click on a part number.

Keyway | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Gear Pitch | Pressure Angle | Worm Length | Gear Pitch Dia. | OD | For Shaft Dia. | Number of Thread Starts | Wd. | Dp. | Thread Direction | Teeth Heat Treatment | Teeth Fabrication | Each | |
Keyed Bore—1144 Carbon Steel | |||||||||||||
12 | 14 1/2° | 1 1/8" | 1" | 1.17" | 1/2" | 1 | 0.125" | 0.063" | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
10 | 14 1/2° | 1 3/8" | 1 1/4" | 1.45" | 5/8" | 1 | 0.188" | 0.094" | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
8 | 14 1/2° | 1 3/4" | 1 1/2" | 1.75" | 3/4" | 1 | 0.188" | 0.094" | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
6 | 14 1/2° | 2 1/2" | 2" | 2.33" | 7/8" | 1 | 0.188" | 0.094" | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |

Hub | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Module | Pressure Angle | Worm Lg., mm | Gear Pitch Dia., mm | OD, mm | For Shaft Dia., mm | Number of Thread Starts | Dia., mm | Material | Thread Direction | Teeth Heat Treatment | Teeth Fabrication | Set Screw Included | Each | |
Round Bore—Black-Oxide 1045 Carbon Steel | ||||||||||||||
0.5 | 20° | 18 | 11 | 12 | 5 | 1 | __ | __ | Right Hand | Not Hardened | Not Ground | Yes | 000000000 | 000000 |
0.5 | 20° | 18 | 11 | 12 | 5 | 2 | __ | __ | Right Hand | Not Hardened | Not Ground | Yes | 000000000 | 00000 |
0.8 | 20° | 30 | 14 | 15.6 | 6 | 1 | __ | __ | Right Hand | Not Hardened | Not Ground | Yes | 000000000 | 00000 |
0.8 | 20° | 30 | 14 | 15.6 | 6 | 2 | __ | __ | Right Hand | Not Hardened | Not Ground | Yes | 000000000 | 00000 |
1 | 20° | 32 | 16 | 18 | 6 | 1 | __ | __ | Right Hand | Not Hardened | Not Ground | Yes | 000000000 | 00000 |
1 | 20° | 32 | 16 | 18 | 6 | 2 | __ | __ | Right Hand | Not Hardened | Not Ground | Yes | 000000000 | 00000 |
1 | 20° | 32 | 16 | 18 | 8 | 1 | __ | __ | Right Hand | Hardened | Ground | Yes | 000000000 | 00000 |
1.25 | 20° | 37 | 21 | 23.5 | 8 | 1 | __ | __ | Right Hand | Not Hardened | Not Ground | Yes | 000000000 | 00000 |
1.5 | 20° | 40 | 25 | 28 | 8 | 1 | 20 | 1045 Carbon Steel | Right Hand | Not Hardened | Not Ground | No | 000000000 | 00000 |
1.5 | 20° | 40 | 25 | 28 | 8 | 2 | 20 | 1045 Carbon Steel | Right Hand | Not Hardened | Not Ground | No | 000000000 | 00000 |
1.5 | 20° | 40 | 25 | 28 | 10 | 1 | 20 | 1045 Carbon Steel | Right Hand | Hardened | Ground | No | 000000000 | 00000 |
2 | 14 1/2° | 46 | 31 | 35 | 12 | 1 | 25 | 1045 Carbon Steel | Left Hand | Not Hardened | Not Ground | No | 000000000 | 00000 |
2 | 14 1/2° | 46 | 31 | 35 | 12 | 1 | 25 | 1045 Carbon Steel | Right Hand | Not Hardened | Not Ground | No | 000000000 | 00000 |
2 | 14 1/2° | 46 | 31 | 35 | 12 | 2 | 25 | 1045 Carbon Steel | Right Hand | Not Hardened | Not Ground | No | 000000000 | 00000 |
2.5 | 20° | 63 | 37 | 42 | 15 | 2 | 30 | 1045 Carbon Steel | Right Hand | Not Hardened | Not Ground | No | 000000000 | 00000 |
Round Bore—303 Stainless Steel | ||||||||||||||
0.5 | 20° | 18 | 11 | 12 | 5 | 1 | __ | __ | Right Hand | Not Hardened | Not Ground | Yes | 000000000 | 00000 |
0.5 | 20° | 18 | 11 | 12 | 5 | 2 | __ | __ | Right Hand | Not Hardened | Not Ground | Yes | 000000000 | 00000 |
0.8 | 20° | 30 | 14 | 15.6 | 6 | 1 | __ | __ | Right Hand | Not Hardened | Not Ground | Yes | 000000000 | 00000 |
1 | 20° | 32 | 16 | 18 | 6 | 1 | __ | __ | Right Hand | Not Hardened | Not Ground | Yes | 000000000 | 00000 |
1 | 20° | 32 | 16 | 18 | 6 | 2 | __ | __ | Right Hand | Not Hardened | Not Ground | Yes | 000000000 | 00000 |
1.5 | 20° | 40 | 25 | 28 | 8 | 2 | 20 | 303 Stainless Steel | Right Hand | Not Hardened | Not Ground | No | 000000000 | 00000 |

Shaft | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Module | Pressure Angle | Worm Lg., mm | Gear Pitch Dia., mm | OD, mm | Dia., mm | Lg., mm | Number of Thread Starts | Thread Direction | Teeth Heat Treatment | Teeth Fabrication | Each | |
4140 Alloy Steel | ||||||||||||
0.5 | 20° | 12 | 9 | 10 | 6 | 65 | 1 | Right Hand | Hardened | Ground | 000000000 | 000000 |
0.5 | 20° | 12 | 9 | 10 | 6 | 65 | 2 | Right Hand | Hardened | Ground | 000000000 | 00000 |
0.8 | 20° | 20 | 12 | 14 | 8 | 85 | 1 | Right Hand | Hardened | Ground | 000000000 | 00000 |
0.8 | 20° | 20 | 12 | 14 | 8 | 85 | 2 | Right Hand | Hardened | Ground | 000000000 | 000000 |
1 | 20° | 30 | 16 | 18 | 18 | 140 | 1 | Right Hand | Hardened | Ground | 000000000 | 000000 |
1.5 | 20° | 40 | 25 | 28 | 26 | 190 | 1 | Right Hand | Hardened | Ground | 000000000 | 000000 |



Hub | |||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Gear Pitch | Speed Ratio | Number of Teeth | Pressure Angle | Gear Pitch Dia. | For Number of Thread Starts | OD | Face Wd. | Overall Wd. | For Shaft Dia. | Dia. | Wd. | Material | For Thread Direction | Teeth Heat Treatment | Teeth Fabrication | Each | |
Round Bore—Cast Iron | |||||||||||||||||
12 | 18:1 | 18 | 14 1/2° | 1 1/2" | 1 | 1.69" | 1/2" | 1.125" | 1/2" | 1.25" | 0.625" | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
12 | 20:1 | 20 | 14 1/2° | 1.67" | 1 | 1.85" | 1/2" | 1.125" | 1/2" | 1.25" | 0.625" | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
12 | 30:1 | 30 | 14 1/2° | 2 1/2" | 1 | 2.69" | 1/2" | 1.125" | 1/2" | 1.25" | 0.625" | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
12 | 40:1 | 40 | 14 1/2° | 3.33" | 1 | 3.52" | 1/2" | 1.25" | 5/8" | 1.5" | 0.75" | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
12 | 60:1 | 60 | 14 1/2° | 5" | 1 | 5.19" | 1/2" | 1.25" | 5/8" | 1.75" | 0.75" | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
10 | 20:1 | 20 | 14 1/2° | 2" | 1 | 2.22" | 5/8" | 1.375" | 1/2" | 1.25" | 0.75" | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
10 | 30:1 | 30 | 14 1/2° | 3" | 1 | 3.22" | 5/8" | 1.375" | 5/8" | 1.75" | 0.75" | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
10 | 40:1 | 40 | 14 1/2° | 4" | 1 | 4.22" | 5/8" | 1.375" | 5/8" | 1.75" | 0.75" | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
10 | 50:1 | 50 | 14 1/2° | 5" | 1 | 5.22" | 5/8" | 1.375" | 3/4" | 2" | 0.75" | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
10 | 100:1 | 100 | 14 1/2° | 10" | 1 | 10.22" | 5/8" | 1.375" | 3/4" | 2.5" | 0.75" | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
8 | 20:1 | 20 | 14 1/2° | 2 1/2" | 1 | 2.78" | 3/4" | 1.5" | 3/4" | 1.75" | 0.75" | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
8 | 30:1 | 30 | 14 1/2° | 3 3/4" | 1 | 4.03" | 3/4" | 1.5" | 3/4" | 1.75" | 0.75" | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
8 | 40:1 | 40 | 14 1/2° | 5" | 1 | 5.28" | 3/4" | 1.625" | 1" | 2.375" | 0.875" | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
6 | 20:1 | 20 | 14 1/2° | 3.33" | 1 | 3.71" | 1" | 1.875" | 3/4" | 1.875" | 0.875" | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
6 | 24:1 | 24 | 14 1/2° | 4" | 1 | 4.37" | 1" | 1.875" | 3/4" | 1.875" | 0.875" | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
6 | 30:1 | 30 | 14 1/2° | 5" | 1 | 5.37" | 1" | 1.875" | 7/8" | 2.25" | 0.875" | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
6 | 40:1 | 40 | 14 1/2° | 6.67" | 1 | 7.04" | 1" | 1.875" | 1" | 2.5" | 0.875" | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
6 | 72:1 | 72 | 14 1/2° | 12" | 1 | 12.37" | 1" | 2.25" | 1 1/4" | 3" | 1.25" | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
Round Bore—Bronze | |||||||||||||||||
12 | 20:1 | 20 | 14 1/2° | 1.67" | 1 | 1.87" | 1/2" | 1" | 1/2" | 1.25" | 0.5" | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
12 | 30:1 | 30 | 14 1/2° | 2 1/2" | 1 | 2.7" | 1/2" | 1.12" | 1/2" | 1.19" | 0.62" | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
12 | 40:1 | 40 | 14 1/2° | 3.33" | 1 | 3.54" | 1/2" | 1.12" | 5/8" | 1.44" | 0.62" | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
10 | 20:1 | 20 | 14 1/2° | 2" | 1 | 2.24" | 5/8" | 1.245" | 1/2" | 1.25" | 0.62" | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
10 | 30:1 | 30 | 14 1/2° | 3" | 1 | 3.24" | 5/8" | 1.245" | 5/8" | 1.69" | 0.62" | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
10 | 40:1 | 40 | 14 1/2° | 4" | 1 | 4.24" | 5/8" | 1.245" | 5/8" | 1.69" | 0.62" | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
10 | 50:1 | 50 | 14 1/2° | 5" | 1 | 5.24" | 5/8" | 1.375" | 3/4" | 1.94" | 0.75" | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |



Hub | |||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Module | Speed Ratio | Number of Teeth | Pressure Angle | Gear Pitch Dia., mm | For Number of Thread Starts | OD, mm | Face Wd., mm | Overall Wd., mm | For Shaft Dia., mm | Dia., mm | Wd., mm | Material | For Thread Direction | Teeth Heat Treatment | Teeth Fabrication | Each | |
Round Bore—Cast Iron | |||||||||||||||||
1 | 120:1 | 120 | 20° | 120 | 1 | 123 | 10 | 20 | 10 | 40 | 10 | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
1 | 60:1 | 60 | 20° | 60 | 1 | 63 | 10 | 20 | 10 | 30 | 10 | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
1 | 100:1 | 100 | 20° | 100 | 1 | 103 | 10 | 20 | 10 | 40 | 10 | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
1 | 80:1 | 80 | 20° | 80 | 1 | 83 | 10 | 20 | 10 | 35 | 10 | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
1.5 | 30:1 | 30 | 20° | 45 | 1 | 49.5 | 12 | 22 | 10 | 30 | 10 | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
1.5 | 40:1 | 40 | 20° | 60 | 1 | 64.5 | 12 | 22 | 12 | 30 | 10 | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
2 | 20:1 | 20 | 14 1/2° | 40 | 1 | 46 | 22 | 35 | 12 | 33 | 13 | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
2 | 10:1 | 20 | 14 1/2° | 40 | 2 | 46 | 22 | 35 | 12 | 33 | 13 | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
2.5 | 10:1 | 20 | 20° | 50 | 2 | 57.5 | 22 | 36 | 12 | 35 | 14 | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
Round Bore—Bronze | |||||||||||||||||
0.5 | 15:1 | 30 | 20° | 15 | 2 | 16 | 5 | 12 | 4 | 12 | 7 | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
0.5 | 20:1 | 20 | 20° | 10 | 1 | 11 | 5 | 12 | 4 | 9 | 7 | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
0.5 | 30:1 | 30 | 20° | 15 | 1 | 16 | 5 | 12 | 4 | 12 | 7 | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
0.5 | 40:1 | 40 | 20° | 20 | 1 | 21 | 5 | 12 | 5 | 15 | 7 | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
0.5 | 50:1 | 50 | 20° | 25 | 1 | 26 | 5 | 12 | 5 | 20 | 7 | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
0.5 | 60:1 | 60 | 20° | 30 | 1 | 31 | 5 | 12 | 5 | 25 | 7 | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
0.5 | 10:1 | 20 | 20° | 10 | 2 | 11 | 5 | 12 | 4 | 9 | 7 | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
0.8 | 20:1 | 20 | 20° | 16 | 1 | 17.6 | 9 | 18 | 5 | 12 | 9 | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
0.8 | 30:1 | 30 | 20° | 24 | 1 | 25.6 | 9 | 18 | 5 | 18 | 9 | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
0.8 | 40:1 | 40 | 20° | 32 | 1 | 33.6 | 9 | 18 | 6 | 20 | 9 | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
0.8 | 10:1 | 20 | 20° | 16 | 2 | 17.6 | 9 | 18 | 5 | 12 | 9 | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
1 | 30:1 | 30 | 20° | 30 | 1 | 33 | 10 | 20 | 6 | 20 | 10 | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
1 | 10:1 | 20 | 20° | 20 | 2 | 23 | 10 | 20 | 6 | 16 | 10 | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
1.25 | 20:1 | 20 | 20° | 25 | 1 | 28.75 | 10 | 20 | 6 | 20 | 10 | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
1.5 | 15:1 | 30 | 20° | 45 | 2 | 49.5 | 12 | 22 | 10 | 30 | 10 | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
1.5 | 20:1 | 20 | 20° | 30 | 1 | 34.5 | 12 | 22 | 8 | 22 | 10 | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
1.5 | 30:1 | 30 | 20° | 45 | 1 | 49.5 | 12 | 22 | 10 | 30 | 10 | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
1.5 | 10:1 | 20 | 20° | 30 | 2 | 34.5 | 12 | 22 | 8 | 22 | 10 | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
Plastic Worm Gears



These plastic gears are lighter and quieter than metal gears—pair them with metal worms for lubrication-free operation. Worm gears use screw threads to make large reductions to shaft speed while transmitting motion at a right angle. They transmit motion from worm to gear and cannot be reversed. For gears and worms to mesh correctly, they must have the same pressure angle and module.
Speed ratio is the ratio by which output shaft speed is reduced. As speed decreases, torque increases.
Acetal gears are lightweight, and resist corrosion and chemicals. They absorb less moisture than nylon gears, so they’re less prone to dimensional changes. They’re best suited for light duty applications, such as prototyping.
Nylon gears are lightweight and stronger than acetal gears.
For technical drawings and 3-D models, click on a part number.
Hub | |||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Module | Speed Ratio | Number of Teeth | Pressure Angle | Gear Pitch Dia., mm | For Number of Thread Starts | OD, mm | Face Width, mm | Overall Width, mm | For Shaft Diameter, mm | Material | Fabrication | Color | Diameter, mm | Width, mm | For Thread Direction | Each | |
Round Bore | |||||||||||||||||
0.5 | 10:1 | 20 | 20° | 10 | 2 | 11 | 5 | 12 | 4 | Acetal Plastic | Molded | White | 9 | 7 | Right Hand | 00000000 | 000000 |
0.5 | 20:1 | 20 | 20° | 10 | 1 | 11 | 5 | 12 | 4 | Acetal Plastic | Molded | White | 9 | 7 | Right Hand | 00000000 | 00000 |
0.5 | 30:1 | 30 | 20° | 15 | 1 | 16 | 5 | 12 | 4 | Acetal Plastic | Molded | White | 12 | 7 | Right Hand | 00000000 | 00000 |
0.5 | 40:1 | 40 | 20° | 20 | 1 | 21 | 5 | 12 | 5 | Acetal Plastic | Molded | White | 15 | 7 | Right Hand | 00000000 | 00000 |
0.5 | 50:1 | 50 | 20° | 25 | 1 | 26 | 5 | 12 | 5 | Acetal Plastic | Molded | White | 20 | 7 | Right Hand | 00000000 | 00000 |
0.5 | 60:1 | 60 | 20° | 30 | 1 | 31 | 5 | 12 | 5 | Acetal Plastic | Molded | White | 25 | 7 | Right Hand | 00000000 | 00000 |
0.8 | 10:1 | 20 | 20° | 16 | 2 | 17.6 | 9 | 18 | 5 | Acetal Plastic | Molded | White | 12 | 9 | Right Hand | 00000000 | 00000 |
0.8 | 50:1 | 50 | 20° | 40 | 1 | 41.6 | 9 | 18 | 8 | Acetal Plastic | Molded | White | 25 | 9 | Right Hand | 00000000 | 00000 |
0.8 | 60:1 | 60 | 20° | 48 | 1 | 49.6 | 9 | 18 | 8 | Acetal Plastic | Molded | White | 25 | 9 | Right Hand | 00000000 | 00000 |
1 | 10:1 | 20 | 20° | 20 | 2 | 23 | 10 | 20 | 6 | Nylon Plastic | Molded | Blue | 16 | 10 | Right Hand | 00000000 | 00000 |
1 | 30:1 | 30 | 20° | 30 | 1 | 33 | 10 | 20 | 6 | Nylon Plastic | Molded | Blue | 20 | 10 | Right Hand | 00000000 | 00000 |
1 | 50:1 | 50 | 20° | 50 | 1 | 53 | 10 | 20 | 8 | Nylon Plastic | Molded | Blue | 30 | 10 | Right Hand | 00000000 | 00000 |
1.5 | 10:1 | 20 | 20° | 30 | 2 | 34.5 | 12 | 22 | 8 | Nylon Plastic | Molded | Blue | 22 | 10 | Right Hand | 00000000 | 00000 |
Right-Angle Speed Reducers




Reduce shaft speed and increase torque while transmitting motion at a 90° angle. Speed reducers require lubrication (not included). Connect to a motor using a shaft coupling (not included).
Base mounting plates (sold separately) allow you to mount speed reducers to machinery or other surfaces where fastening into the bottom of the speed reducer is not possible.
Radial loads are loads that are perpendicular to the shaft. They’re commonly caused by components attached to shaft, such as pulleys and sprockets.
For technical drawings and 3-D models, click on a part number.
Max. Output | Max. Input | Input Shaft | Output Shaft | Overall | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Torque | Speed, rpm | Speed, rpm | hp | Dia. | Lg. | Dia. | Lg. | Ctr.-to-Ctr. Shaft Distance | Lg. | Wd. | Ht. | Radial Load Cap., lbs. | Choose an Output Shaft Location | Each | |
5:1 Speed Ratio | |||||||||||||||
113 in.-lbs. @ 1,750 rpm | 900 | 4,500 | 0.69 | 3/8" | 0.81" | 1/2" | 1.19" | 1" | 4 1/2" | 4 9/16" | 3 5/8" | 150 | 0000000 | 0000000 | |
235 in.-lbs. @ 1,750 rpm | 900 | 4,500 | 1.39 | 1/2" | 1.31" | 5/8" | 2" | 1.33" | 6 1/16" | 6 1/16" | 4 11/16" | 200 | 0000000 | 000000 | |
432 in.-lbs. @ 1,750 rpm | 720 | 3,600 | 2.55 | 5/8" | 1.56" | 7/8" | 1.78" | 1.75" | 6 7/8" | 7 5/8" | 5 3/4" | 500 | 0000000 | 000000 | |
10:1 Speed Ratio | |||||||||||||||
138 in.-lbs. @ 1,750 rpm | 450 | 4,500 | 0.44 | 3/8" | 0.81" | 1/2" | 1.19" | 1" | 4 1/2" | 4 9/16" | 3 5/8" | 150 | 0000000 | 000000 | |
281 in.-lbs. @ 1,750 rpm | 450 | 4,500 | 0.86 | 1/2" | 1.31" | 5/8" | 2" | 1.33" | 6 1/16" | 6 1/16" | 4 11/16" | 200 | 0000000 | 000000 | |
536 in.-lbs. @ 1,750 rpm | 360 | 3,600 | 1.61 | 5/8" | 1.56" | 7/8" | 1.78" | 1.75" | 6 7/8" | 7 5/8" | 5 3/4" | 500 | 0000000 | 000000 | |
20:1 Speed Ratio | |||||||||||||||
149 in.-lbs. @ 1,750 rpm | 225 | 4,500 | 0.27 | 3/8" | 0.81" | 1/2" | 1.19" | 1" | 4 1/2" | 4 9/16" | 3 5/8" | 150 | 0000000 | 000000 | |
308 in.-lbs. @ 1,750 rpm | 225 | 4,500 | 0.52 | 1/2" | 1.31" | 5/8" | 2" | 1.33" | 6 1/16" | 6 1/16" | 4 11/16" | 200 | 0000000 | 000000 | |
590 in.-lbs. @ 1,750 rpm | 180 | 3,600 | 0.97 | 5/8" | 1.56" | 7/8" | 1.78" | 1.75" | 6 7/8" | 7 5/8" | 5 3/4" | 500 | 0000000 | 000000 | |
892 in.-lbs. @ 1,750 rpm | 180 | 3,600 | 1.4 | 5/8" | 1.56" | 1" | 2.09" | 2.06" | 8 1/8" | 7 5/16" | 6 3/8" | 700 | 0000000 | 000000 | |
30:1 Speed Ratio | |||||||||||||||
311 in.-lbs. @ 1,750 rpm | 150 | 4,500 | 0.39 | 1/2" | 1.31" | 5/8" | 2" | 1.33" | 6 1/16" | 6 1/16" | 4 11/16" | 200 | 0000000 | 000000 | |
573 in.-lbs. @ 1,750 rpm | 120 | 3,600 | 0.65 | 5/8" | 1.56" | 7/8" | 1.78" | 1.75" | 6 7/8" | 7 5/8" | 5 3/4" | 500 | 0000000 | 000000 | |
871 in.-lbs. @ 1,750 rpm | 120 | 3,600 | 0.99 | 5/8" | 1.56" | 1" | 2.09" | 2.06" | 8 1/8" | 7 5/16" | 6 3/8" | 700 | 0000000 | 000000 | |
40:1 Speed Ratio | |||||||||||||||
307 in.-lbs. @ 1,750 rpm | 112 | 4,500 | 0.31 | 1/2" | 1.31" | 5/8" | 2" | 1.33" | 6 1/16" | 6 1/16" | 4 11/16" | 200 | 0000000 | 000000 | |
609 in.-lbs. @ 1,750 rpm | 90 | 3,600 | 0.57 | 5/8" | 1.56" | 7/8" | 1.78" | 1.75" | 6 7/8" | 7 5/8" | 5 3/4" | 500 | 0000000 | 000000 | |
876 in.-lbs. @ 1,750 rpm | 90 | 3,600 | 0.81 | 5/8" | 1.56" | 1" | 2.09" | 2.06" | 8 1/8" | 7 5/16" | 6 3/8" | 700 | 0000000 | 000000 | |
1,206 in.-lbs. @ 1,750 rpm | 90 | 3,600 | 1.08 | 3/4" | 2" | 1 1/8" | 2.38" | 2.38" | 9" | 7 13/16" | 7" | 900 | 0000000 | 000000 | |
50:1 Speed Ratio | |||||||||||||||
297 in.-lbs. @ 1,750 rpm | 90 | 4,500 | 0.25 | 1/2" | 1.31" | 5/8" | 2" | 1.33" | 6 1/16" | 6 1/16" | 4 11/16" | 200 | 00000000 | 000000 | |
1,484 in.-lbs. @ 1,750 rpm | 72 | 3,600 | 1.08 | 3/4" | 2" | 1 1/8" | 2.62" | 2.62" | 10" | 8 1/2" | 8" | 1,000 | 00000000 | 000000 | |
60:1 Speed Ratio | |||||||||||||||
271 in.-lbs. @ 1,750 rpm | 75 | 4,500 | 0.22 | 1/2" | 1.31" | 5/8" | 2" | 1.33" | 6 1/16" | 6 1/16" | 4 11/16" | 200 | 0000000 | 000000 | |
527 in.-lbs. @ 1,750 rpm | 60 | 3,600 | 0.35 | 5/8" | 1.56" | 7/8" | 1.78" | 1.75" | 6 7/8" | 7 5/8" | 5 3/4" | 500 | 0000000 | 000000 | |
826 in.-lbs. @ 1,750 rpm | 60 | 3,600 | 0.55 | 5/8" | 1.56" | 1" | 2.09" | 2.06" | 8 1/8" | 7 5/16" | 6 3/8" | 700 | 0000000 | 000000 | |
1,128 in.-lbs. @ 1,750 rpm | 60 | 3,600 | 0.73 | 3/4" | 2" | 1 1/8" | 2.38" | 2.38" | 9" | 7 13/16" | 7" | 900 | 0000000 | 000000 | |
1,385 in.-lbs. @ 1,750 rpm | 60 | 3,600 | 0.89 | 3/4" | 2" | 1 1/8" | 2.63" | 2.62" | 10" | 8 1/2" | 8" | 1,000 | 0000000 | 000000 | |
80:1 Speed Ratio | |||||||||||||||
222 in.-lbs. @ 1,750 rpm | 56 | 4,500 | 0.15 | 1/2" | 1.31" | 5/8" | 2" | 1.33" | 6 1/16" | 6 1/16" | 4 11/16" | 200 | 0000000 | 000000 | |
387 in.-lbs. @ 1,750 rpm | 45 | 3,600 | 0.23 | 5/8" | 1.56" | 7/8" | 1.78" | 1.75" | 6 7/8" | 7 5/8" | 5 3/4" | 500 | 0000000 | 000000 | |
634 in.-lbs. @ 1,750 rpm | 45 | 3,600 | 0.38 | 5/8" | 1.56" | 1" | 2.09" | 2.06" | 8 1/8" | 7 5/16" | 6 3/8" | 700 | 0000000 | 000000 | |
1,069 in.-lbs. @ 1,750 rpm | 45 | 3,600 | 0.76 | 3/4" | 2" | 1 1/8" | 2.63" | 2.62" | 10" | 8 1/2" | 8" | 1,000 | 0000000 | 000000 |
1 qt. Lubricant | 000000 | Each | 000000 |
Base Mounting Plate for 1" Ctr.-to-Ctr. Shaft Distance | 0000000 | Each | 00000 |
Base Mounting Plate for 1.33" Ctr.-to-Ctr. Shaft Distance | 0000000 | Each | 00000 |
Base Mounting Plate for 1.75" Ctr.-to-Ctr. Shaft Distance | 0000000 | Each | 00000 |
Base Mounting Plate for 2.06" Ctr.-to-Ctr. Shaft Distance | 0000000 | Each | 00000 |
Base Mounting Plate for 2.38" Ctr.-to-Ctr. Shaft Distance | 0000000 | Each | 00000 |
Base Mounting Plate for 2.62" Ctr.-to-Ctr. Shaft Distance | 0000000 | Each | 00000 |
Flexible-Mount Right-Angle Speed Reducers for Face-Mount AC Motors


With output shaft openings on both sides, these speed reducers adapt to fit multiple configurations. Use them to transmit motion at a 90° angle while reducing speed and increasing torque. All are permanently lubricated to save maintenance time and effort.
Plug-in shafts (sold separately) convert output drives from female to male. Shafts for two outputs are long enough to extend from both sides of the speed reducer.
For technical drawings and 3-D models, click on a part number.
Speed Reducers | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Max. Output | Max. Input | O'all | Single Output Plug-In Shafts | Double Output Plug-In Shafts | |||||||||||
Torque | Speed, rpm | Speed, rpm | hp | For Input Shaft Dia. | For Output Shaft Dia. | Ctr.-to-Ctr. Shaft Distance | Lg. | Wd. | Ht. | Each | Each | Each | |||
For NEMA 56C Motor | |||||||||||||||
5:1 Speed Ratio | |||||||||||||||
303 in.-lbs. @ 1,750 rpm | 720 | 3,500 | 1.89 | 5/8" | 3/4" | 1.57" | 5" | 6 1/2" | 6 3/4" | 00000000 | 0000000 | 0000000 | 000000 | 0000000 | 000000 |
572 in.-lbs. @ 1,750 rpm | 720 | 3,500 | 3.57 | 5/8" | 1" | 1.97" | 6" | 6 1/2" | 7 1/2" | 00000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
7.5:1 Speed Ratio | |||||||||||||||
353 in.-lbs. @ 1,750 rpm | 480 | 3,500 | 1.5 | 5/8" | 3/4" | 1.57" | 5" | 6 1/2" | 6 3/4" | 00000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
647 in.-lbs. @ 1,750 rpm | 480 | 3,500 | 2.72 | 5/8" | 1" | 1.97" | 6" | 6 1/2" | 7 1/2" | 00000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
10:1 Speed Ratio | |||||||||||||||
370 in.-lbs. @ 1,750 rpm | 360 | 3,500 | 1.21 | 5/8" | 3/4" | 1.57" | 5" | 6 1/2" | 6 3/4" | 0000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
664 in.-lbs. @ 1,750 rpm | 360 | 3,500 | 2.12 | 5/8" | 1" | 1.97" | 6" | 6 1/2" | 7 1/2" | 0000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
15:1 Speed Ratio | |||||||||||||||
370 in.-lbs. @ 1,750 rpm | 240 | 3,500 | 0.83 | 5/8" | 3/4" | 1.57" | 5" | 6 1/2" | 6 3/4" | 00000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
681 in.-lbs. @ 1,750 rpm | 240 | 3,500 | 1.52 | 5/8" | 1" | 1.97" | 6" | 6 1/2" | 7 1/2" | 00000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
1,236 in.-lbs. @ 1,750 rpm | 240 | 3,500 | 2.7 | 5/8" | 1 1/8" | 2.48" | 7 3/4" | 6 1/2" | 8 1/2" | 00000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
1,900 in.-lbs. @ 1,750 rpm | 240 | 3,500 | 4.07 | 5/8" | 1 1/4" | 2.95" | 9" | 6 1/2" | 9 1/2" | 00000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
20:1 Speed Ratio | |||||||||||||||
361 in.-lbs. @ 1,750 rpm | 180 | 3,500 | 0.64 | 5/8" | 3/4" | 1.57" | 5" | 6 1/2" | 6 3/4" | 0000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
656 in.-lbs. @ 1,750 rpm | 180 | 3,500 | 1.14 | 5/8" | 1" | 1.97" | 6" | 6 1/2" | 7 1/2" | 0000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
1,225 in.-lbs. @ 1,750 rpm | 180 | 3,500 | 2.06 | 5/8" | 1 1/8" | 2.48" | 7 3/4" | 6 1/2" | 8 1/2" | 0000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
25:1 Speed Ratio | |||||||||||||||
328 in.-lbs. @ 1,750 rpm | 144 | 3,500 | 0.48 | 5/8" | 3/4" | 1.57" | 5" | 6 1/2" | 6 3/4" | 00000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
597 in.-lbs. @ 1,750 rpm | 144 | 3,500 | 0.86 | 5/8" | 1" | 1.97" | 6" | 6 1/2" | 7 1/2" | 00000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
1,124 in.-lbs. @ 1,750 rpm | 144 | 3,500 | 1.56 | 5/8" | 1 1/8" | 2.48" | 7 3/4" | 6 1/2" | 8 1/2" | 00000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
1,784 in.-lbs. @ 1,750 rpm | 144 | 3,500 | 2.43 | 5/8" | 1 1/4" | 2.95" | 9" | 6 1/2" | 9 1/2" | 00000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
30:1 Speed Ratio | |||||||||||||||
403 in.-lbs. @ 1,750 rpm | 120 | 3,500 | 0.53 | 5/8" | 3/4" | 1.57" | 5" | 6 1/2" | 6 3/4" | 0000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
740 in.-lbs. @ 1,750 rpm | 120 | 3,500 | 0.94 | 5/8" | 1" | 1.97" | 6" | 6 1/2" | 7 1/2" | 0000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
1,345 in.-lbs. @ 1,750 rpm | 120 | 3,500 | 1.64 | 5/8" | 1 1/8" | 2.48" | 7 3/4" | 6 1/2" | 8 1/2" | 0000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
40:1 Speed Ratio | |||||||||||||||
378 in.-lbs. @ 1,750 rpm | 90 | 3,500 | 0.4 | 5/8" | 3/4" | 1.57" | 5" | 6 1/2" | 6 3/4" | 0000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
647 in.-lbs. @ 1,750 rpm | 90 | 3,500 | 0.7 | 5/8" | 1" | 1.97" | 6" | 6 1/2" | 7 1/2" | 0000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
1,261 in.-lbs. @ 1,750 rpm | 90 | 3,500 | 1.21 | 5/8" | 1 1/8" | 2.48" | 7 3/4" | 6 1/2" | 8 1/2" | 0000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
2,029 in.-lbs. @ 1,750 rpm | 90 | 3,500 | 1.9 | 5/8" | 1 1/4" | 2.95" | 9" | 6 1/2" | 9 1/2" | 00000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
50:1 Speed Ratio | |||||||||||||||
353 in.-lbs. @ 1,750 rpm | 72 | 3,500 | 0.31 | 5/8" | 3/4" | 1.57" | 5" | 6 1/2" | 6 3/4" | 00000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
647 in.-lbs. @ 1,750 rpm | 72 | 3,500 | 0.71 | 5/8" | 1" | 1.97" | 6" | 6 1/2" | 7 1/2" | 0000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
1,208 in.-lbs. @ 1,750 rpm | 72 | 3,500 | 0.99 | 5/8" | 1 1/8" | 2.48" | 7 3/4" | 6 1/2" | 8 1/2" | 00000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
1,881 in.-lbs. @ 1,750 rpm | 72 | 3,500 | 1.47 | 5/8" | 1 1/4" | 2.95" | 9" | 6 1/2" | 9 1/2" | 00000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
60:1 Speed Ratio | |||||||||||||||
319 in.-lbs. @ 1,750 rpm | 60 | 3,500 | 0.26 | 5/8" | 3/4" | 1.57" | 5" | 6 1/2" | 6 3/4" | 0000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
605 in.-lbs. @ 1,750 rpm | 60 | 3,500 | 0.47 | 5/8" | 1" | 1.97" | 6" | 6 1/2" | 7 1/2" | 0000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
1,135 in.-lbs. @ 1,750 rpm | 60 | 3,500 | 0.82 | 5/8" | 1 1/8" | 2.48" | 7 3/4" | 6 1/2" | 8 1/2" | 0000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
1,778 in.-lbs. @ 1,750 rpm | 60 | 3,500 | 1.22 | 5/8" | 1 1/4" | 2.95" | 9" | 6 1/2" | 9 1/2" | 0000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
80:1 Speed Ratio | |||||||||||||||
277 in.-lbs. @ 1,750 rpm | 45 | 3,500 | 0.18 | 5/8" | 3/4" | 1.57" | 5" | 6 1/2" | 6 3/4" | 00000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
546 in.-lbs. @ 1,750 rpm | 45 | 3,500 | 0.35 | 5/8" | 1" | 1.97" | 6" | 6 1/2" | 7 1/2" | 00000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
1,632 in.-lbs. @ 1,750 rpm | 45 | 3,500 | 0.91 | 5/8" | 1 1/4" | 2.95" | 9" | 6 1/2" | 9 1/2" | 00000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
2,397 in.-lbs. @ 1,750 rpm | 45 | 3,500 | 1.27 | 5/8" | 1 3/8" | 3.54" | 10 1/2" | 6 1/2" | 10 3/4" | 00000000 | 000000 | 00000000 | 00000 | 00000000 | 00000 |
100:1 Speed Ratio | |||||||||||||||
244 in.-lbs. @ 1,750 rpm | 36 | 3,500 | 0.14 | 5/8" | 3/4" | 1.57" | 5" | 6 1/2" | 6 3/4" | 00000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
462 in.-lbs. @ 1,750 rpm | 36 | 3,500 | 0.26 | 5/8" | 1" | 1.97" | 6" | 6 1/2" | 7 1/2" | 00000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
992 in.-lbs. @ 1,750 rpm | 36 | 3,500 | 0.51 | 5/8" | 1 1/8" | 2.48" | 7 3/4" | 6 1/2" | 8 1/2" | 00000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
1,517 in.-lbs. @ 1,750 rpm | 36 | 3,500 | 0.74 | 5/8" | 1 1/4" | 2.95" | 9" | 6 1/2" | 9 1/2" | 00000000 | 000000 | 0000000 | 00000 | 0000000 | 00000 |
2,271 in.-lbs. @ 1,750 rpm | 36 | 3,500 | 1.03 | 5/8" | 1 3/8" | 3.54" | 10 1/2" | 6 1/2" | 10 3/4" | 00000000 | 000000 | 00000000 | 00000 | 00000000 | 00000 |
Right-Angle Speed Reducers for Face-Mount AC Motors




Mount these speed reducers to a NEMA 56C motor to transmit motion at a 90° angle while reducing speed and increasing torque. All require lubrication (not included).
Base mounting plates (sold separately) allow you to mount speed reducers to machinery or other surfaces where fastening into the bottom of the speed reducer is not possible.
Radial loads are loads that are perpendicular to the shaft. They’re commonly caused by components attached to shaft, such as pulleys and sprockets.
Max. Output | Max. Input | Output Shaft | O'all | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Torque | Speed, rpm | Speed, rpm | hp | For Input Shaft Dia. | Dia. | Lg. | Ctr.-to-Ctr. Shaft Distance | Lg. | Wd. | Ht. | Radial Load Cap., lbs. | Choose an Output Shaft Location | Each | |
For NEMA 56C Motor | ||||||||||||||
5:1 Speed Ratio | ||||||||||||||
113 in.-lbs. @ 1,750 rpm | 900 | 4,500 | 0.5 | 5/8" | 1/2" | 1.19" | 1" | 5 5/8" | 5 3/4" | 5 3/4" | 150 | 0000000 | 0000000 | |
235 in.-lbs. @ 1,750 rpm | 900 | 4,500 | 1 | 5/8" | 5/8" | 2" | 1.33" | 6 1/8" | 7" | 6" | 200 | 0000000 | 000000 | |
432 in.-lbs. @ 1,750 rpm | 720 | 3,600 | 2 | 5/8" | 7/8" | 1.78" | 1.75" | 7 1/2" | 7 1/4" | 6 3/4" | 500 | 0000000 | 000000 | |
10:1 Speed Ratio | ||||||||||||||
138 in.-lbs. @ 1,750 rpm | 450 | 4,500 | 0.33 | 5/8" | 1/2" | 1.19" | 1" | 5 5/8" | 5 3/4" | 5 3/4" | 150 | 0000000 | 000000 | |
281 in.-lbs. @ 1,750 rpm | 450 | 4,500 | 0.75 | 5/8" | 5/8" | 2" | 1.33" | 6 1/8" | 7" | 6" | 200 | 0000000 | 000000 | |
536 in.-lbs. @ 1,750 rpm | 360 | 3,600 | 1.5 | 5/8" | 7/8" | 1.78" | 1.75" | 7 1/2" | 7 1/4" | 6 3/4" | 500 | 0000000 | 000000 | |
20:1 Speed Ratio | ||||||||||||||
149 in.-lbs. @ 1,750 rpm | 225 | 4,500 | 0.25 | 5/8" | 1/2" | 1.19" | 1" | 5 5/8" | 5 3/4" | 5 3/4" | 150 | 0000000 | 000000 | |
308 in.-lbs. @ 1,750 rpm | 225 | 4,500 | 0.5 | 5/8" | 5/8" | 2" | 1.33" | 6 1/8" | 7" | 6" | 200 | 0000000 | 000000 | |
590 in.-lbs. @ 1,750 rpm | 180 | 3,600 | 1 | 5/8" | 7/8" | 1.78" | 1.75" | 7 1/2" | 7 1/4" | 6 3/4" | 500 | 0000000 | 000000 | |
892 in.-lbs. @ 1,750 rpm | 180 | 3,600 | 1 | 5/8" | 1" | 2.09" | 2.06" | 8 1/8" | 7 9/16" | 7 1/4" | 700 | 0000000 | 000000 | |
30:1 Speed Ratio | ||||||||||||||
311 in.-lbs. @ 1,750 rpm | 150 | 4,500 | 0.33 | 5/8" | 5/8" | 2" | 1.33" | 6 1/8" | 7" | 6" | 200 | 0000000 | 000000 | |
573 in.-lbs. @ 1,750 rpm | 120 | 3,600 | 0.5 | 5/8" | 7/8" | 1.78" | 1.75" | 7 1/2" | 7 1/4" | 6 3/4" | 500 | 0000000 | 000000 | |
871 in.-lbs. @ 1,750 rpm | 120 | 3,600 | 1 | 5/8" | 1" | 2.09" | 2.06" | 8 1/8" | 7 9/16" | 7 1/4" | 700 | 0000000 | 000000 | |
40:1 Speed Ratio | ||||||||||||||
307 in.-lbs. @ 1,750 rpm | 112 | 4,500 | 0.25 | 5/8" | 5/8" | 2" | 1.33" | 6 1/8" | 7" | 6" | 200 | 0000000 | 000000 | |
609 in.-lbs. @ 1,750 rpm | 90 | 3,600 | 0.5 | 5/8" | 7/8" | 1.78" | 1.75" | 7 1/2" | 7 1/4" | 6 3/4" | 500 | 0000000 | 000000 | |
876 in.-lbs. @ 1,750 rpm | 90 | 3,600 | 0.75 | 5/8" | 1" | 2.09" | 2.06" | 8 1/8" | 7 9/16" | 7 1/4" | 700 | 0000000 | 000000 | |
1,206 in.-lbs. @ 1,750 rpm | 90 | 3,600 | 1 | 5/8" | 1 1/8" | 2.38" | 2.38" | 8 3/4" | 8" | 7 1/4" | 900 | 0000000 | 000000 | |
60:1 Speed Ratio | ||||||||||||||
271 in.-lbs. @ 1,750 rpm | 75 | 4,500 | 0.17 | 5/8" | 5/8" | 2" | 1.33" | 6 1/8" | 7" | 6" | 200 | 0000000 | 000000 | |
527 in.-lbs. @ 1,750 rpm | 60 | 3,600 | 0.33 | 5/8" | 7/8" | 1.78" | 1.75" | 7 1/2" | 7 1/4" | 6 3/4" | 500 | 0000000 | 000000 | |
826 in.-lbs. @ 1,750 rpm | 60 | 3,600 | 0.5 | 5/8" | 1" | 2.09" | 2.06" | 8 1/8" | 7 9/16" | 7 1/4" | 700 | 0000000 | 000000 | |
1,128 in.-lbs. @ 1,750 rpm | 60 | 3,600 | 0.75 | 5/8" | 1 1/8" | 2.38" | 2.38" | 8 3/4" | 8" | 7 1/4" | 900 | 0000000 | 000000 | |
1,385 in.-lbs. @ 1,750 rpm | 60 | 3,600 | 0.75 | 5/8" | 1 1/8" | 2.63" | 2.62" | 9 1/2" | 9" | 8 1/2" | 1,000 | 0000000 | 00000000 | |
80:1 Speed Ratio | ||||||||||||||
222 in.-lbs. @ 1,750 rpm | 56 | 4,500 | 0.16 | 5/8" | 5/8" | 2" | 1.33" | 6 1/8" | 7" | 6" | 200 | 0000000 | 000000 | |
387 in.-lbs. @ 1,750 rpm | 45 | 3,600 | 0.25 | 5/8" | 7/8" | 1.78" | 1.75" | 7 1/2" | 7 1/4" | 6 3/4" | 500 | 0000000 | 000000 | |
634 in.-lbs. @ 1,750 rpm | 45 | 3,600 | 0.33 | 5/8" | 1" | 2.09" | 2.06" | 8 1/8" | 7 9/16" | 7 1/4" | 700 | 0000000 | 000000 | |
1,069 in-lbs. @ 1,750 rpm | 45 | 3,600 | 0.75 | 5/8" | 1 1/8" | 2.63" | 2.62" | 9 1/2" | 9" | 8 1/2" | 1,000 | 0000000 | 00000000 |
Base Mounting Plate for 1.75" Ctr.-to-Ctr. Shaft Distance | 0000000 | 000000 |
1 qt. Lubricant | 000000 | 00000 |
Base Mounting Plate for 2.06" Ctr.-to-Ctr. Shaft Distance | 0000000 | 00000 |
Base Mounting Plate for 1.33" Ctr.-to-Ctr. Shaft Distance | 0000000 | 00000 |
Base Mounting Plate for 2.38" Ctr.-to-Ctr. Shaft Distance | 0000000 | 00000 |
Base Mounting Plate for 2.62" Ctr.-to-Ctr. Shaft Distance | 0000000 | 00000 |
Base Mounting Plate for 1" Ctr.-to-Ctr. Shaft Distance | 0000000 | 00000 |
Plug-In Shafts for Flexible-Mount Right-Angle Speed Reducers
Convert output drives from female to male.
Shafts for two outputs are long enough to extend from both sides of the speed reducer
For technical drawings and 3-D models, click on a part number.
Base Mounting Plates for Right-Angle Speed Reducers

Mount right-angle speed reducers to machinery or other surfaces where fastening into the bottom of the speed reducer is not possible. Inner holes align with the speed reducer; use the outer holes to mount to a surface.
For technical drawings and 3-D models, click on a part number.
Overall | For Speed Reducer Mounting Hole | Mounting Hole | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Thick. | Thread Size | Ctr.-to-Ctr. Lg. | Ctr.-to-Ctr. Wd. | Dia. | Ctr.-to-Ctr. Lg. | Ctr.-to-Ctr. Wd. | Includes | Each | |
4.63" | 3.69" | 0.44" | 1/4"-20 | 2.63" | 1.69" | 0.34" | 3 3/4" | 2.88" | Four steel bolts for mounting plate to speed reducer | 0000000 | 000000 |
5.38" | 4.19" | 0.53" | 5/16"-18 | 3.25" | 2" | 0.34" | 4.38" | 3.31" | Four steel bolts for mounting plate to speed reducer | 0000000 | 00000 |
7" | 5.69" | 0.69" | 5/16"-18 | 4.19" | 2.75" | 0.41" | 5 3/4" | 4 1/2" | Four steel bolts for mounting plate to speed reducer | 0000000 | 00000 |
7.75" | 5.94" | 0.72" | 3/8"-16 | 5" | 2.88" | 0.47" | 6.38" | 4.69" | Four steel bolts for mounting plate to speed reducer | 0000000 | 00000 |
8.5" | 6.19" | 3/4" | 3/8"-16 | 5" | 2.88" | 0.47" | 7.06" | 4.88" | Four steel bolts for mounting plate to speed reducer | 0000000 | 00000 |
9.63" | 6.66" | 3/4" | 3/8"-16 | 6.38" | 3.38" | 0.53" | 8" | 5 1/4" | Four steel bolts for mounting plate to speed reducer | 0000000 | 00000 |
Sanitary Right-Angle Speed Reducers




Cut shaft speed and increase torque while transmitting motion at a 90° angle in food, pharmaceutical, and other sanitary environments. Made of stainless steel, these reducers won’t corrode from frequent washdowns with harsh cleaners and sanitizers. With an IP69K rating, they’ll also withstand dust and high-pressure, high-temperature washdowns. All have a rounded design and polished surfaces, so there are no crevices where bacteria can grow, reducing the chance of a foodborne illness. Double input and output seals block out contaminants and prevent lubricant leaks.
These speed reducers have multiple gear teeth that are engaged at the same time to create more torque than other same-size reducers. They’re also more durable for a long service life. All are permanently lubricated to save maintenance time and effort. Connect them to a motor using a shaft coupling (not included).
Radial loads are loads that are perpendicular to the shaft. They’re commonly caused by components attached to the shaft, such as pulleys and sprockets.
For technical drawings and 3-D models, click on a part number.
Max. Output | Max. Input | Input Shaft | Output Shaft | Overall | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Torque | Speed, rpm | Speed, rpm | hp | Dia. | Lg. | Dia. | Lg. | Ctr.-to-Ctr. Shaft Distance | Lg. | Wd. | Ht. | Radial Load Cap., lbs. | Environmental Rating | Choose an Output Shaft Location | Each | |
5:1 Speed Ratio | ||||||||||||||||
429 in.-lbs. @ 1,750 rpm | 350 | 1,750 | 2.53 | 3/4" | 1.57" | 3/4" | 1.97" | 1.54" | 7.46" | 7.03" | 5.45" | 600 | IP69K | 0000000 | 000000000 | |
736 in.-lbs. @ 1,750 rpm | 350 | 1,750 | 2.96 | 3/4" | 1.57" | 1 1/8" | 2.15" | 1.97" | 7.6" | 8.09" | 6.35" | 1,200 | IP69K | 0000000 | 00000000 | |
20:1 Speed Ratio | ||||||||||||||||
1,240 in.-lbs. @ 1,750 rpm | 88 | 1,750 | 1.58 | 3/4" | 1.57" | 1 1/8" | 2.15" | 1.97" | 7.6" | 8.09" | 6.35" | 1,200 | IP69K | 0000000 | 00000000 | |
30:1 Speed Ratio | ||||||||||||||||
912 in.-lbs. @ 1,750 rpm | 58 | 1,750 | 1 | 3/4" | 1.57" | 1" | 1.86" | 1.75" | 7.93" | 7.13" | 5.84" | 1,100 | IP69K | 0000000 | 00000000 | |
40:1 Speed Ratio | ||||||||||||||||
643 in.-lbs. @ 1,750 rpm | 44 | 1,750 | 0.59 | 3/4" | 1.57" | 3/4" | 1.97" | 1.54" | 7.46" | 7.03" | 5.45" | 600 | IP69K | 0000000 | 00000000 | |
871 in.-lbs. @ 1,750 rpm | 44 | 1,750 | 0.8 | 3/4" | 1.57" | 1" | 1.86" | 1.75" | 7.93" | 7.13" | 5.84" | 1,100 | IP69K | 0000000 | 00000000 | |
1,130 in.-lbs. @ 1,750 rpm | 44 | 1,750 | 0.99 | 3/4" | 1.57" | 1 1/8" | 2.15" | 1.97" | 7.6" | 8.09" | 6.35" | 1,200 | IP69K | 0000000 | 00000000 | |
60:1 Speed Ratio | ||||||||||||||||
594 in.-lbs. @ 1,750 rpm | 29 | 1,750 | 0.39 | 3/4" | 1.57" | 3/4" | 1.97" | 1.54" | 7.46" | 7.03" | 5.45" | 600 | IP69K | 0000000 | 00000000 | |
807 in.-lbs. @ 1,750 rpm | 29 | 1,750 | 0.53 | 3/4" | 1.57" | 1" | 1.86" | 1.75" | 7.93" | 7.13" | 5.84" | 1,100 | IP69K | 0000000 | 00000000 | |
1,050 in.-lbs. @ 1,750 rpm | 29 | 1,750 | 0.69 | 3/4" | 1.57" | 1 1/8" | 2.15" | 1.97" | 7.6" | 8.09" | 6.35" | 1,200 | IP69K | 0000000 | 00000000 |
Sanitary Right-Angle Speed Reducers for Face-Mount AC Motors




With a sanitary design for food-processing environments, these speed reducers mount to the face of your motor—no coupler required—to slow shafts and increase torque while transmitting motion at a 90° angle. The 316 stainless steel housing resists corrosion from frequent washdowns with harsh cleaners. Rated IP69K, they’re dust- and water-tight against high-pressure and high-temperature washdowns. Rounded edges and a polished surface make the housing easy to clean and leave no crevices for bacteria to grow in. To protect against leaks and contamination, they have double input and output seals.
Since multiple teeth come in contact at once, these speed reducers are more durable and create more torque than other speed reducers of the same size. They’re often used to generate large amounts of torque in tight spaces. To save maintenance time, they’re permanently lubricated.
Radial loads are loads that are perpendicular to the shaft. They’re commonly caused by components attached to shaft, such as pulleys and sprockets.
For technical drawings and 3-D models, click on a part number.
Max. Output | Max. Input | Output Shaft | Overall | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Speed Ratio | Torque | Speed, rpm | Speed, rpm | hp | For Input Shaft Dia. | Dia. | Lg. | Ctr.-to-Ctr. Shaft Distance | Lg. | Wd. | Ht. | Radial Load Cap., lbs. | Choose an Output Shaft Location | Each | |
For NEMA 56C Motor | |||||||||||||||
5:1 | 429 in.-lbs. @ 1,750 rpm | 350 | 1,750 | 2.53 | 5/8" | 3/4" | 1.97" | 1.54" | 9.49" | 7.03" | 6.7" | 600 | 0000000 | 000000000 | |
5:1 | 736 in.-lbs. @ 1,750 rpm | 350 | 1,750 | 2.96 | 5/8" | 1 1/8" | 2.15" | 1.97" | 9 3/4" | 7.6" | 7 1/2" | 1,200 | 0000000 | 00000000 | |
10:1 | 597 in.-lbs. @ 1,750 rpm | 175 | 1,750 | 1.84 | 5/8" | 3/4" | 1.97" | 1.54" | 9.49" | 7.03" | 6.7" | 600 | 0000000 | 00000000 | |
20:1 | 957 in.-lbs. @ 1,750 rpm | 87 | 1,750 | 1.55 | 5/8" | 1" | 1.86" | 1.75" | 9.71" | 7.13" | 7.06" | 1,100 | 0000000 | 00000000 | |
30:1 | 912 in.-lbs. @ 1,750 rpm | 58 | 1,750 | 1 | 5/8" | 1" | 1.86" | 1.75" | 9.71" | 7.13" | 7.06" | 1,100 | 0000000 | 00000000 | |
40:1 | 643 in.-lbs. @ 1,750 rpm | 43 | 1,750 | 0.59 | 5/8" | 3/4" | 1.97" | 1.54" | 9.49" | 7.03" | 6.7" | 600 | 0000000 | 00000000 | |
50:1 | 840 in.-lbs. @ 1,750 rpm | 35 | 1,750 | 0.64 | 5/8" | 1" | 1.86" | 1.75" | 9.71" | 7.13" | 7.06" | 1,100 | 0000000 | 00000000 | |
60:1 | 594 in.-lbs. @ 1,750 rpm | 29 | 1,750 | 0.39 | 5/8" | 3/4" | 1.97" | 1.54" | 9.49" | 7.03" | 6.7" | 600 | 0000000 | 00000000 | |
60:1 | 807 in.-lbs. @ 1,750 rpm | 29 | 1,750 | 0.53 | 5/8" | 1" | 1.86" | 1.75" | 9.71" | 7.13" | 7.06" | 1,100 | 0000000 | 00000000 | |
60:1 | 1,050 in.-lbs. @ 1,750 rpm | 29 | 1,750 | 0.69 | 5/8" | 1 1/8" | 2.15" | 1.97" | 9 3/4" | 7.6" | 7 1/2" | 1,200 | 0000000 | 00000000 | |
For NEMA 140TC Motor | |||||||||||||||
5:1 | 574 in.-lbs. @ 1,750 rpm | 350 | 1,750 | 2.9 | 7/8" | 1" | 1.86" | 1.75" | 9.71" | 7.13" | 7.06" | 1,100 | 0000000 | 00000000 | |
20:1 | 957 in.-lbs. @ 1,750 rpm | 87 | 1,750 | 1.55 | 7/8" | 1" | 1.86" | 1.75" | 9.71" | 7.13" | 7.06" | 1,100 | 0000000 | 00000000 | |
50:1 | 840 in.-lbs. @ 1,750 rpm | 35 | 1,750 | 0.64 | 7/8" | 1" | 1.86" | 1.75" | 9.71" | 7.13" | 7.06" | 1,100 | 0000000 | 00000000 | |
60:1 | 807 in.-lbs. @ 1,750 rpm | 29 | 1,750 | 0.53 | 7/8" | 1" | 1.86" | 1.75" | 9.71" | 7.13" | 7.06" | 1,100 | 0000000 | 00000000 |