Gear Type Gear Type | Show |
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Gear Type Gear Type | Hide |
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Shaft Orientation Shaft Orientation |
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| Right Angle | Parallel |
For Motor Frame Size For Motor Frame Size |
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Input Connection Type Input Connection Type |
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 | Shaft Opening |
 | Shaft |
Maximum Input Horsepower Maximum Input Horsepower |
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For Input Shaft Diameter For Input Shaft Diameter |
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Bearing Type Bearing Type |
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 | Ball |
Overall Length Overall Length |
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Output Shaft Type Output Shaft Type |
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 | Round with Through Hole |
Maximum Input Speed Maximum Input Speed |
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Radial Load Capacity Radial Load Capacity |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Mounting Orientation Mounting Orientation |
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For Input Shaft Type For Input Shaft Type |
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 | Keyed |
Lubrication Lubrication |
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Housing Material Housing Material |
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Maximum Output Torque @ Input Speed Maximum OutputTorque @ Input Speed |
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Speed Reducers for Face-Mount AC Motors
Mount these speed reducers to a NEMA motor. They transmit motion parallel to the motor shaft while reducing speed and increasing torque. Spur gears minimize torque loss between your motor and drive shaft, making these speed reducers more efficient than our other speed reducers. All require lubrication (not included).
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.
Speed Reducers | |||||||||||||||
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Max. Output | Max. Input | Output Shaft | Overall | 1 qt. Lubricant | |||||||||||
| Torque | Speed, rpm | Speed, rpm | hp | For Input Shaft Dia. | Dia. | Lg. | Ctr.-to-Ctr. Shaft Distance | Lg. | Wd. | Ht. | Radial Load Capacity, lbs. | Each | Each | ||
For NEMA 56C Motor | |||||||||||||||
2.6:1 Speed Ratio | |||||||||||||||
| 136 in.-lbs. @ 1,750 rpm | 665 | 1,750 | 1.48 | 5/8" | 7/8" | 2.47" | 1.19" | 7" | 8 1/4" | 6 3/4" | Not Rated | 000000 | 0000000 | 000000 | 00 |
3.2:1 Speed Ratio | |||||||||||||||
| 167 in.-lbs. @ 1,750 rpm | 547 | 1,750 | 1.48 | 5/8" | 7/8" | 2.47" | 1.19" | 7" | 8 1/4" | 6 3/4" | 256 | 0000000 | 000000 | 000000 | 000000 |
3.9:1 Speed Ratio | |||||||||||||||
| 204 in.-lbs. @ 1,750 rpm | 448 | 1,750 | 1.48 | 5/8" | 7/8" | 2.47" | 1.19" | 7" | 8 1/4" | 6 3/4" | 253 | 0000000 | 000000 | 000000 | 00000 |
4.8:1 Speed Ratio | |||||||||||||||
| 249 in.-lbs. @ 1,750 rpm | 364 | 1,750 | 1.48 | 5/8" | 7/8" | 2.47" | 1.19" | 7" | 8 1/4" | 6 3/4" | 249 | 0000000 | 000000 | 000000 | 00000 |
5.6:1 Speed Ratio | |||||||||||||||
| 290 in.-lbs. @ 1,750 rpm | 315 | 1,750 | 1.48 | 5/8" | 7/8" | 2.47" | 1.19" | 7" | 8 1/4" | 6 3/4" | 246 | 0000000 | 000000 | 000000 | 00000 |
6.5:1 Speed Ratio | |||||||||||||||
| 286 in.-lbs. @ 1,750 rpm | 270 | 1,750 | 1.25 | 5/8" | 7/8" | 2.47" | 1.19" | 7" | 8 1/4" | 6 3/4" | Not Rated | 00000000 | 000000 | 000000 | 00 |
7.6:1 Speed Ratio | |||||||||||||||
| 288 in.-lbs. @ 1,750 rpm | 229 | 1,750 | 1.07 | 5/8" | 7/8" | 2.47" | 1.19" | 7" | 8 1/4" | 6 3/4" | 237 | 0000000 | 000000 | 000000 | 00000 |
9.1:1 Speed Ratio | |||||||||||||||
| 289 in.-lbs. @ 1,750 rpm | 192 | 1,750 | 0.9 | 5/8" | 7/8" | 2.47" | 1.19" | 7" | 8 1/4" | 6 3/4" | Not Rated | 00000000 | 000000 | 000000 | 00 |
10.1:1 Speed Ratio | |||||||||||||||
| 182 in.-lbs. @ 1,750 rpm | 172 | 1,750 | 0.5 | 5/8" | 5/8" | 2.03" | __ | 7 3/4" | 8 1/4" | 6 3/4" | Not Rated | 00000000 | 000000 | 000000 | 00 |
11.1:1 Speed Ratio | |||||||||||||||
| 293 in.-lbs. @ 1,750 rpm | 158 | 1,750 | 0.75 | 5/8" | 7/8" | 2.47" | 1.19" | 7" | 8 1/4" | 6 3/4" | 242 | 0000000 | 000000 | 000000 | 00000 |
Gear Boxes for Linear Motion
Convert rotary motion to linear motion. As the input shaft spins, a gear rack moves back and forth to adjust components in position and lifting applications. Gear boxes require lubrication (not included). Connect the input shaft to a motor using a shaft coupling (not included). Mesh the gear rack with a spur gear or attach to a load using the mounting holes on either end of the gear rack. When meshing the gear rack with a gear, be sure the rack and gear have the same pressure angle and module.
Radial loads are loads that are perpendicular to the shaft. They’re commonly caused by components attached to shaft, such as hand cranks and motors.
Overall | Input Shaft | Gear Rack | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg., mm | Wd., mm | Ht., mm | Travel Distance per Turn, mm | Max. Input Torque, in.-lbs. | Dia., mm | Lg., mm | Travel Speed, m/sec. | Thrust Load Capacity, lbs. | Dia., mm | Lg., mm | Pressure Angle | Radial Load Capacity, lbs. | Each | |
| 580 | 102 | 80 | 62.83 | 36 | 14 | 30 | 0.6 | 180 | 25 | 580 | 20° | 45 | 0000000 | 000000000 |
| 595 | 127 | 110 | 125.66 | 354 | 25 | 45 | 0.6 | 450 | 32 | 595 | 20° | 35 | 0000000 | 00000000 |
| 595 | 192 | 180 | 188.5 | 2,125 | 42 | 60 | 0.6 | 1,800 | 60 | 595 | 20° | 190 | 0000000 | 00000000 |
| 1,080 | 102 | 80 | 62.83 | 36 | 14 | 30 | 0.6 | 180 | 25 | 1,080 | 20° | 45 | 0000000 | 00000000 |
| 1,185 | 127 | 110 | 125.66 | 354 | 25 | 45 | 0.6 | 450 | 32 | 1,185 | 20° | 35 | 0000000 | 00000000 |
| 1,185 | 192 | 180 | 188.5 | 2,125 | 42 | 60 | 0.6 | 1,800 | 60 | 1,185 | 20° | 190 | 0000000 | 00000000 |
Gear Boxes for Mirrored Linear Motion
A set of gear racks converts rotary motion into linear motion in opposite directions at the same time. As the input shaft spins, the gear racks move back and forth to adjust components in position and lifting applications. Gear boxes require lubrication (not included). Connect the input shaft to a motor using a shaft coupling (not included). Mesh gear racks with a spur gear or attach to a load using the mounting holes on either end of the gear racks. When meshing the gear racks with a gear, be sure the rack and gear have the same pressure angle and module.
Radial loads are loads that are perpendicular to the shaft. They’re commonly caused by components attached to shaft, such as hand cranks and motors.
Overall | Input Shaft | Gear Rack | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg., mm | Wd., mm | Ht., mm | Travel Distance per Turn, mm | Max. Input Torque, in.-lbs. | Dia., mm | Lg., mm | Travel Speed, m/sec. | Thrust Load Capacity, lbs. | Dia., mm | Lg., mm | Center-to-Center Distance, mm | Pressure Angle | Radial Load Capacity, lbs. | Each | |
| 1,010 | 192 | 180 | 188.5 | 2,125 | 42 | 60 | 0.6 | 1,800 | 60 | 595 | 99 | 20° | 190 | 0000000 | 000000000 |
| 1,080 | 102 | 80 | 62.83 | 36 | 14 | 30 | 0.6 | 180 | 25 | 580 | 38 | 20° | 45 | 0000000 | 00000000 |
| 1,080 | 127 | 110 | 125.66 | 354 | 25 | 45 | 0.6 | 450 | 32 | 595 | 61 | 20° | 35 | 0000000 | 00000000 |
| 2,080 | 102 | 80 | 62.83 | 36 | 14 | 30 | 0.6 | 180 | 25 | 1,080 | 38 | 20° | 45 | 0000000 | 00000000 |
| 2,190 | 192 | 180 | 188.5 | 2,125 | 42 | 60 | 0.6 | 1,800 | 60 | 1,185 | 99 | 20° | 190 | 0000000 | 00000000 |
| 2,260 | 127 | 110 | 125.66 | 354 | 25 | 45 | 0.6 | 450 | 32 | 1,185 | 61 | 20° | 35 | 0000000 | 00000000 |
Rotary Speed Limiters
Install these rotary speed limiters at the hinges of small lids, doors, and access panels for smooth, quiet motion. They're often used in electronics applications.
Speed limiters with a 360° rotation angle are often used to move small hoods, flaps, and fans. A cycle is one shaft rotation.
Dual direction speed limiters dampen motion in both directions. Common uses for them include controlling the motion of a switch-activated door and opening and closing a DVD player.
Clockwise and counterclockwise speed limiters dampen motion in the listed direction, moving freely in the opposite direction. Use them in processes that require returning a part to its original position.
Speed limiters with a geared shaft must be used with gears that have the same 20° pressure angle and module.
Overall | Shaft | Mount. Holes | ||||||||||||||||
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| Max. Torque, in.-oz. | Min. Torque, in.-oz. | Lg. | Wd. | Ht. | Dia. | Lg. | Module | Gear Pitch Dia., mm | Gear Material | Temp. Range, ° F | Max. Cycles per Minute | Max. Speed, rpm | Material | Dia. | Ctr.-to-Ctr. | Fasteners Included | Each | |
Style A | ||||||||||||||||||
360° Dual Direction Rotation | ||||||||||||||||||
| 3.6 | 2.1 | 1.08" | 0.59" | 0.55" | 0.16" | 0.18" | 0.8 | 8.8 | Acetal | 32° to 122° | 10 | 50 | Polycarbonate | 0.13" | 0.83" | No | 00000000 | 000000 |
| 5.4 | 3.2 | 1.08" | 0.59" | 0.55" | 0.16" | 0.18" | 0.8 | 8.8 | Acetal | 32° to 122° | 10 | 50 | Polycarbonate | 0.13" | 0.83" | No | 000000 | 00000 |
360° Clockwise Rotation | ||||||||||||||||||
| 3.6 | 2.1 | 1.08" | 0.59" | 0.55" | 0.16" | 0.18" | 0.8 | 8.8 | Acetal | 32° to 122° | 10 | 50 | Polycarbonate | 0.13" | 0.83" | No | 00000000 | 00000 |
| 5.4 | 3.2 | 1.08" | 0.59" | 0.55" | 0.16" | 0.18" | 0.8 | 8.8 | Acetal | 32° to 122° | 10 | 50 | Polycarbonate | 0.13" | 0.83" | No | 00000000 | 00000 |
360° Counterclockwise Rotation | ||||||||||||||||||
| 3.6 | 2.1 | 1.08" | 0.59" | 0.55" | 0.16" | 0.18" | 0.8 | 8.8 | Acetal | 32° to 122° | 10 | 50 | Polycarbonate | 0.13" | 0.83" | No | 00000000 | 00000 |
| 5.4 | 3.2 | 1.08" | 0.59" | 0.55" | 0.16" | 0.18" | 0.8 | 8.8 | Acetal | 32° to 122° | 10 | 50 | Polycarbonate | 0.13" | 0.83" | No | 00000000 | 00000 |
Style B | ||||||||||||||||||
360° Dual Direction Rotation | ||||||||||||||||||
| 0.2 | 0.08 | 0.75" | 0.39" | 0.24" | 0.1" | 0.12" | 0.6 | 6 | Acetal | 32° to 122° | 10 | 50 | Polycarbonate | 0.08" | 0.55" | No | 00000000 | 0000 |
| 0.8 | 0.13 | 0.95" | 0.59" | 0.26" | 0.31" | 0.15" | 0.5 | 7 | Acetal | 32° to 122° | 10 | 50 | Polycarbonate | 0.08" | 0.75" | No | 0000000 | 0000 |
| 1.28 | 0.3 | 0.95" | 0.59" | 0.26" | 0.31" | 0.15" | 0.5 | 7 | Acetal | 32° to 122° | 10 | 50 | Polycarbonate | 0.08" | 0.75" | No | 0000000 | 0000 |
| 2.5 | 0.75 | 0.95" | 0.59" | 0.26" | 0.31" | 0.15" | 0.5 | 7 | Acetal | 32° to 122° | 10 | 50 | Polycarbonate | 0.08" | 0.75" | No | 0000000 | 0000 |
| 8.4 | 5.6 | 1.97" | 0.98" | 0.75" | 0.2" | 0.2" | 1 | 12 | Acetal | 32° to 122° | 10 | 50 | Polycarbonate | 0.17" | 1.57" | No | 00000000 | 00000 |
| 16.9 | 11.2 | 1.97" | 0.98" | 0.75" | 0.2" | 0.2" | 1 | 12 | Acetal | 32° to 122° | 10 | 50 | Polycarbonate | 0.17" | 1.57" | No | 00000000 | 00000 |
| 25.4 | 17.1 | 1.97" | 0.98" | 0.75" | 0.2" | 0.2" | 1 | 12 | Acetal | 32° to 122° | 10 | 50 | Polycarbonate | 0.17" | 1.57" | No | 00000000 | 00000 |
360° Clockwise Rotation | ||||||||||||||||||
| 8.4 | 5.6 | 1.97" | 0.98" | 0.75" | 0.2" | 0.2" | 1 | 12 | Acetal | 32° to 122° | 10 | 50 | Polycarbonate | 0.17" | 1.57" | No | 00000000 | 00000 |
| 16.9 | 11.2 | 1.97" | 0.98" | 0.75" | 0.2" | 0.2" | 1 | 12 | Acetal | 32° to 122° | 10 | 50 | Polycarbonate | 0.17" | 1.57" | No | 00000000 | 00000 |
| 25.4 | 17.1 | 1.97" | 0.98" | 0.75" | 0.2" | 0.2" | 1 | 12 | Acetal | 32° to 122° | 10 | 50 | Polycarbonate | 0.17" | 1.57" | No | 00000000 | 00000 |
360° Counterclockwise Rotation | ||||||||||||||||||
| 8.4 | 5.6 | 1.97" | 0.98" | 0.75" | 0.2" | 0.2" | 1 | 12 | Acetal | 32° to 122° | 10 | 50 | Polycarbonate | 0.17" | 1.57" | No | 00000000 | 00000 |
| 16.9 | 11.2 | 1.97" | 0.98" | 0.75" | 0.2" | 0.2" | 1 | 12 | Acetal | 32° to 122° | 10 | 50 | Polycarbonate | 0.17" | 1.57" | No | 00000000 | 00000 |
| 25.4 | 17.1 | 1.97" | 0.98" | 0.75" | 0.2" | 0.2" | 1 | 12 | Acetal | 32° to 122° | 10 | 50 | Polycarbonate | 0.17" | 1.57" | No | 00000000 | 00000 |