About Shaft Couplings
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Stepper Motors
These stepper motors are good for precise, repetitive movements, such as those made by the head of a 3D printer. Similar to the hands of a clock, their shaft turns in small, equal increments. When the shaft stops, it holds its position even when a counteracting force is applied to the load. You can control the position of the load without having to configure encoders or sensors. All are bipolar hybrid stepper motors, which deliver greater torque, precision, and efficiency than other types of stepper motors.
When relative positioning is critical, such as coordinating motion in a multi-axis system, choose a motor with two shafts and mount an encoder (not included) on one of them. The encoder monitors the position of the shaft and reports back to the controller.
Holding torque is the force needed to move the shaft out of position when it is stationary. When the shaft is in motion, torque generally decreases as speed increases. Use a torque-speed curve to confirm which motor will work for your application. Click on a part number and select “Product Detail” to view the curve for a motor.
All motors require a controller and driver (not included).
For technical drawings and 3-D models, click on a part number.
O'all | Shaft | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Max. Holding Torque, in.-oz. | Max. Speed, rpm | Max. Current per Phase, A | Full Step Increment | Polarity | No. of Wire Leads | Lg. | Wd. | Ht. | Dia. | Lg. | Center to Base | Type | No. of Shafts | Each | |
NEMA 11 | |||||||||||||||
8.5 | 3,300 | 0.67 | 1.8° | Bipolar | 4 | 2.1" | 1.1" | 1.1" | 5mm | 18mm | 0.56" | Solid | 1 | 0000000 | 0000000 |
14 | 2,475 | 0.67 | 1.8° | Bipolar | 4 | 2.6" | 1.1" | 1.1" | 5mm | 18mm | 0.56" | Solid | 1 | 0000000 | 000000 |
17 | 2,475 | 0.67 | 1.8° | Bipolar | 4 | 2.8" | 1.1" | 1.1" | 5mm | 18mm | 0.56" | Solid | 1 | 0000000 | 000000 |
NEMA 14 | |||||||||||||||
7.5 | 3,300 | 0.45 | 1.8° | Bipolar | 4 | 1.6" | 1.4" | 1.4" | 5mm | 13.5mm | 0.7" | Solid | 1 | 0000000 | 00000 |
20 | 1,800 | 0.8 | 1.8° | Bipolar | 4 | 1.9" | 1.4" | 1.4" | 5mm | 13.5mm | 0.7" | Solid | 1 | 0000000 | 00000 |
NEMA 17 | |||||||||||||||
27 | 1,300 | 0.67 | 1.8° | Bipolar | 4 | 1.9" | 1.7" | 1.7" | 5mm | 24mm | 0.84" | Solid | 1 | 0000000 | 00000 |
39 | 1,000 | 0.62 | 1.8° | Bipolar | 4 | 2.1" | 1.7" | 1.7" | 5mm | 24mm | 0.84" | Solid | 1 | 0000000 | 00000 |
64 | 825 | 0.7 | 1.8° | Bipolar | 4 | 2.3" | 1.7" | 1.7" | 5mm | 24mm | 0.84" | Solid | 1 | 0000000 | 00000 |
71 | 2,475 | 2 | 1.8° | Bipolar | 4 | 2.5" | 1.7" | 1.7" | 5mm | 24mm | 0.84" | Solid | 1 | 0000000 | 00000 |
84 | 820 | 1.05 | 1.8° | Bipolar | 4 | 2.6" | 1.7" | 1.7" | 5mm | 24mm | 0.84" | D-Profile | 1 | 0000000 | 00000 |
115 | 1,000 | 2 | 1.8° | Bipolar | 4 | 3.8" | 1.7" | 1.7" | 5mm | 22mm | 0.84" | D-Profile | 2 | 00000000 | 000000 |
125 | 975 | 2 | 1.8° | Bipolar | 4 | 3.1" | 1.7" | 1.7" | 5mm | 24mm | 0.84" | D-Profile | 1 | 0000000 | 00000 |
Stepper Motors with Integrated Motion Control
With a built-in controller and driver, these stepper motors come ready to program and operate. After connecting to a computer for initial setup, the controller can store and run programs on its own. The controller communicates to the driver which directs the motor’s shaft to move in small, equal increments. When the shaft stops, it holds its position even when a counteracting force is applied to the load. All are bipolar hybrid stepper motors, which deliver greater torque, precision, and efficiency than other types of stepper motors.
When relative positioning is critical, such as coordinating motion in a multi-axis system, choose a motor with an encoder. The encoder monitors the position of the shaft and reports back to the controller.
Holding torque is the force needed to move the shaft out of position when it is stationary. When the shaft is in motion, torque generally decreases as speed increases. Use a torque-speed curve to confirm which motor will work for your application. Click on a part number and select “Product Detail” to view the curve for a motor.
You can adjust the step resolution down to 1/256 of a full step, which translates to 51,200 microsteps per revolution. Increasing the number of steps directs an even more precise position and reduces the step-step-step motion to mimic a smooth, continuous rotation. The higher the number of step resolution settings, the greater the flexibility you have for determining the size of the motor’s step.
For technical drawings and 3-D models, click on a part number.
O'all | Shaft | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Max. Holding Torque, in.-oz. | Max. Speed, rpm | Current per Phase, A | DC Voltage | Full Step Increment | Step Resolution | No. of Step Resolution Settings | Polarity | No. of Inputs/Outputs | Lg. | Wd. | Ht. | Dia. | Lg. | Center to Base | Type | Each | |
Motors/Controllers/Drivers | |||||||||||||||||
NEMA 17 | |||||||||||||||||
40.3 | 1,200 | 0.1-2 | 12-40 | 1.8° | 1; 1/2; 1/4; 1/8; 1/16; 1/32; 1/64; 1/128; 1/256 | 9 | Bipolar | 2 Digital Inputs/Outputs | 2.3" | 1.7" | 1.7" | 5mm | 22mm | 0.84" | Solid | 0000000 | 0000000 |
74.9 | 1,000 | 0.1-2 | 12-40 | 1.8° | 1; 1/2; 1/4; 1/8; 1/16; 1/32; 1/64; 1/128; 1/256 | 9 | Bipolar | 2 Digital Inputs/Outputs | 2.5" | 1.7" | 1.7" | 5mm | 22mm | 0.84" | Solid | 0000000 | 000000 |
85.4 | 820 | 0.1-2 | 12-40 | 1.8° | 1; 1/2; 1/4; 1/8; 1/16; 1/32; 1/64; 1/128; 1/256 | 9 | Bipolar | 2 Digital Inputs/Outputs | 2.8" | 1.7" | 1.7" | 5mm | 22mm | 0.84" | Solid | 0000000 | 000000 |
Motors/Controllers/Drivers/Encoders | |||||||||||||||||
NEMA 17 | |||||||||||||||||
31 | 3,000 | 0.1-2.2 | 12-48 | 1.8° | 1 to 1/256 | 25,501 | Bipolar | 1 Digital Output, 3 Digital Inputs, 1 Analog Input | 3.7" | 1.7" | 3" | 5mm | 22mm | 0.84" | D-Profile | 00000000 | 000000 |
54 | 3,000 | 0.1-2.2 | 12-48 | 1.8° | 1 to 1/256 | 25,501 | Bipolar | 1 Digital Output, 3 Digital Inputs, 1 Analog Input | 3.9" | 1.7" | 3" | 5mm | 22mm | 0.84" | D-Profile | 00000000 | 000000 |
68 | 3,000 | 0.1-2.2 | 12-48 | 1.8° | 1 to 1/256 | 25,501 | Bipolar | 1 Digital Output, 3 Digital Inputs, 1 Analog Input | 4.2" | 1.7" | 3" | 5mm | 22mm | 0.84" | D-Profile | 00000000 | 000000 |
Wet-Location Stepper Motors
To precisely position loads in automated systems that are frequently rinsed, these stepper motors are IP65 rated to seal out water. Their shaft turns in small, equal increments, similar to the hands of a clock. When the shaft stops, it holds its position even when force is applied to the load. This means you don’t need to configure encoders or sensors to control the position of the load. All are hybrid bipolar stepper motors, so they have more torque, precision, and efficiency than other stepper motors.
Holding torque is the force needed to move the shaft out of position when it’s stationary. When the shaft is in motion, torque generally decreases as speed increases. Use a torque-speed curve to confirm which motor will work for your application. Click on a part number and select “Product Detail” to view the curve for a motor.
These stepper motors require a controller and a driver (not included).
For technical drawings and 3-D models, click on a part number.
Overall | Shaft | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Max. Holding Torque, in.-oz. | Max. Speed, rpm | Max. Current per Phase, A | Full Step Increment | Polarity | No. of Wire Leads | Lg. | Wd. | Ht. | Dia. | Lg. | Center to Base | Type | Temp. Range, °F | Environmental Rating | Each | |
NEMA 17 | ||||||||||||||||
85.4 | 1,600 | 2.1 | 1.8° | Bipolar | 4 | 2.9" | 1.7" | 1.7" | 5mm | 22mm | 0.84" | Solid | 0° to 120° | IP65 | 0000000 | 0000000 |
125 | 975 | 2 | 1.8° | Bipolar | 4 | 3.6" | 1.7" | 1.7" | 5mm | 24mm | 0.84" | D-Profile | 0° to 120° | IP65 | 00000000 | 000000 |
Dry-Running Positioning Slides for Stepper Motors
With PTFE sleeve bearings and a low-friction ball screw, these slides don’t require the mess and maintenance of lubrication but still give you precise positioning anywhere along the length of their stroke. Because they have sleeve bearings, they have fewer moving parts, so they perform better in dusty and wet environments than slides with ball bearings. They’re also better at handling impact and vibration.
All slides require a stepper motor, driver, and controller (not included) to operate. As part of this system, they move in precise increments, like the head on an inkjet printer. These positioning slides work well for automated assemblies and other applications that require fine, repeatable motion control.
Travel distance per turn, also known as screw lead, is how far the carriage moves with one rotation of the ball screw.
For technical drawings and 3-D models, click on a part number.
Overall | Carriage | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Stroke Lg., mm | Dynamic Horizontal/Vertical Load Capacity, lbs. | Static Load Capacity, lbs. | Max. Speed, mm/s | Travel Distance per Turn, mm | Repeatability, mm | For Shaft Dia. | For Max. Motor Speed, rpm | For Max. Motor Torque, in.-oz. | Lg., mm | Wd., mm | Ht., mm | Lg., mm | Wd., mm | Bearing Type | Base Material | Each | |
For NEMA 17 Motor Frame Size | |||||||||||||||||
100 | Not Rated | 630 | 50 | 2 | ±0.1 | 5mm | 1,500 | 71 | 276 | 74 | 56 | 69 | 73 | Sleeve | Aluminum | 0000000 | 0000000 |
200 | Not Rated | 630 | 50 | 2 | ±0.1 | 5mm | 1,500 | 71 | 376 | 74 | 56 | 69 | 73 | Sleeve | Aluminum | 0000000 | 000000 |
300 | Not Rated | 630 | 50 | 2 | ±0.1 | 5mm | 1,500 | 71 | 476 | 74 | 56 | 69 | 73 | Sleeve | Aluminum | 0000000 | 000000 |
400 | Not Rated | 630 | 50 | 2 | ±0.1 | 5mm | 1,500 | 71 | 576 | 74 | 56 | 69 | 73 | Sleeve | Aluminum | 0000000 | 000000 |
500 | Not Rated | 630 | 50 | 2 | ±0.1 | 5mm | 1,500 | 71 | 676 | 74 | 56 | 69 | 73 | Sleeve | Aluminum | 0000000 | 000000 |
600 | Not Rated | 630 | 50 | 2 | ±0.1 | 5mm | 1,500 | 71 | 776 | 74 | 56 | 69 | 73 | Sleeve | Aluminum | 0000000 | 000000 |
Positioning Slides for Stepper Motors
Add your own stepper motor and controller to precisely move the ball screw and carriage smoothly at high speeds, like a head on an inkjet printer. With a repeatability of ± 0.01 mm—thinner than a strand of hair—the carriage hits the same spot every time. These positioning slides work well for automated assemblies and other applications that require fine, repeatable motion control.
The carriage rides along the inside of the rail, making these slides more compact than traditional carriages and guide rails. Made of steel with a U-shaped rail, these slides resist twisting forces that could affect their positioning. This also means they can be installed with only one end supported or with both ends overhanging. The same load rating applies no matter how the slides are oriented.
Two-axis mounting plates (sold separately) secure two slides together for motion along two axes.
Travel distance per turn, also known as screw lead, is how far the carriage moves with one rotation of the ball screw.
For technical drawings and 3-D models, click on a part number.
Dynamic Load Capacity, lbs. | Overall | Carriage | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Stroke Lg., mm | Horizontal | Vertical | Max. Speed, mm/s | Travel Distance per Turn, mm | Repeatability, mm | For Shaft Dia. | For Max. Motor Speed, rpm | For Max. Motor Torque, in.-oz. | Lg., mm | Wd., mm | Ht., mm | Lg., mm | Wd., mm | Bearing Type | Base Material | Each | |
For NEMA 14 Motor Frame Size | |||||||||||||||||
30 | 148 | 148 | 100 | 1 | ±0.01 | 5mm | 6,000 | 29.3 | 166 | 40 | 42 | 46 | 23 | Ball | Steel | 00000000 | 0000000 |
80 | 148 | 148 | 100 | 1 | ±0.01 | 5mm | 6,000 | 29.3 | 216 | 40 | 42 | 46 | 23 | Ball | Steel | 00000000 | 00000000 |
110 | 528 | 528 | 200 | 2 | ±0.01 | 5mm | 6,000 | 88.1 | 276 | 50 | 36 | 47.4 | 31 | Ball | Steel | 00000000 | 00000000 |
130 | 148 | 148 | 100 | 1 | ±0.01 | 5mm | 6,000 | 29.3 | 266 | 40 | 42 | 46 | 23 | Ball | Steel | 00000000 | 00000000 |
For NEMA 17 Motor Frame Size | |||||||||||||||||
100 | 402 | 402 | 470 | 6 | ±0.01 | 5mm | 4,700 | 176 | 277 | 60 | 44.5 | 76 | 37.4 | Ball | Steel | 00000000 | 00000000 |
110 | 528 | 528 | 200 | 2 | ±0.01 | 5mm | 6,000 | 88.1 | 276.5 | 50 | 42 | 47.4 | 31 | Ball | Steel | 00000000 | 00000000 |
160 | 528 | 528 | 200 | 2 | ±0.01 | 5mm | 6,000 | 88.1 | 326.5 | 50 | 42 | 47.4 | 31 | Ball | Steel | 00000000 | 00000000 |
200 | 402 | 402 | 470 | 6 | ±0.01 | 5mm | 4,700 | 176 | 377 | 60 | 44.5 | 76 | 37.4 | Ball | Steel | 00000000 | 00000000 |
210 | 528 | 528 | 200 | 2 | ±0.01 | 5mm | 6,000 | 88.1 | 376.5 | 50 | 42 | 47.4 | 31 | Ball | Steel | 00000000 | 00000000 |
Clamping Precision Flexible Shaft Couplings
Designed to grip evenly around your shaft, these couplings provide more holding power than set screw couplings without marring the shaft. Tighten the clamping screws to secure.
Spiral couplings have long cuts in their body for flexibility to handle parallel, axial, and angular misalignment better than parallel couplings. However, they’re not as rigid. Often used for light duty encoder and stepper drive applications, they allow zero backlash (no play) and never need lubrication. They’re also known as helical beam couplings.
Aluminum couplings are lightweight with good corrosion resistance. Stainless steel couplings offer excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Misalignment Capability | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Overall Lg. | OD | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Axial | For Motion Type | Each | |
Spiral Cut | ||||||||||
7075 Aluminum | ||||||||||
5mm × 3/16" | 22mm | 15mm | 6,000 | 7 | 0.2mm | 3° | 0.12mm | Forward/Reverse, Start/Stop | 000000 | 000000 |
5mm × 3/16" | 28mm | 20mm | 6,000 | 10 | 0.2mm | 3° | 0.12mm | Forward/Reverse, Start/Stop | 0000000 | 00000 |
5mm × 1/4" | 28mm | 20mm | 6,000 | 10 | 0.2mm | 3° | 0.12mm | Forward/Reverse, Start/Stop | 0000000 | 00000 |
5mm × 3mm | 22mm | 15mm | 6,000 | 7 | 0.2mm | 3° | 0.12mm | Forward/Reverse, Start/Stop | 0000000 | 00000 |
5mm × 4mm | 22mm | 15mm | 6,000 | 7 | 0.2mm | 3° | 0.12mm | Forward/Reverse, Start/Stop | 0000000 | 00000 |
5mm × 4mm | 28mm | 20mm | 6,000 | 10 | 0.2mm | 3° | 0.12mm | Forward/Reverse, Start/Stop | 0000000 | 00000 |
5mm × 5mm | 22mm | 15mm | 6,000 | 7 | 0.2mm | 3° | 0.12mm | Forward/Reverse, Start/Stop | 000000 | 00000 |
5mm × 5mm | 28mm | 20mm | 6,000 | 10 | 0.2mm | 3° | 0.12mm | Forward/Reverse, Start/Stop | 0000000 | 00000 |
6mm × 5mm | 28mm | 20mm | 6,000 | 10 | 0.2mm | 3° | 0.12mm | Forward/Reverse, Start/Stop | 000000 | 00000 |
303 Stainless Steel | ||||||||||
3mm × 5mm | 22mm | 15mm | 6,000 | 10 | 0.2mm | 3° | 0.12mm | Forward/Reverse, Start/Stop | 00000000 | 000000 |
4mm × 5mm | 22mm | 15mm | 6,000 | 10 | 0.2mm | 3° | 0.12mm | Forward/Reverse, Start/Stop | 00000000 | 000000 |
5mm × 5mm | 22mm | 15mm | 6,000 | 10 | 0.2mm | 3° | 0.12mm | Forward/Reverse, Start/Stop | 00000000 | 000000 |
5mm × 5mm | 28mm | 20mm | 6,000 | 15 | 0.2mm | 3° | 0.12mm | Forward/Reverse, Start/Stop | 00000000 | 000000 |
5mm × 6mm | 28mm | 20mm | 6,000 | 15 | 0.2mm | 3° | 0.12mm | Forward/Reverse, Start/Stop | 00000000 | 000000 |
Set Screw Precision Flexible Shaft Couplings
Tighten the set screws to fasten these couplings to your shaft. Set screws bite into the shaft to hold the couplings in place. All are lightweight, corrosion-resistant aluminum.
Spiral couplings have long, continuous cuts in the body, making them flexible enough to handle parallel, axial, and angular misalignment. Often used for light duty encoder and stepper drive applications, they allow zero backlash (no play) and never need lubrication. They’re also known as helical beam couplings. Spiral couplings are less rigid than parallel couplings.
For technical drawings and 3-D models, click on a part number.
Misalignment Capability | |||||||||
---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Overall Lg. | OD | Max. Speed, rpm | Max. Torque, in.-lbs. | Angular | Axial | For Motion Type | Each | |
Spiral Cut | |||||||||
7075 Aluminum | |||||||||
5mm × 2mm | 25.4mm | 19.1mm | Not Rated | 25 | 3° | 0.2mm | Forward/Reverse, Start/Stop | 00000000 | 000000 |
5mm × 3mm | 19.1mm | 12.7mm | Not Rated | 5 | 2° | 0.12mm | Forward/Reverse, Start/Stop | 00000000 | 00000 |
5mm × 3mm | 25.4mm | 19.1mm | Not Rated | 25 | 3° | 0.2mm | Forward/Reverse, Start/Stop | 00000000 | 00000 |
5mm × 4mm | 25.4mm | 19.1mm | Not Rated | 25 | 3° | 0.2mm | Forward/Reverse, Start/Stop | 00000000 | 00000 |
5mm × 5mm | 19.1mm | 12.7mm | Not Rated | 5 | 2° | 0.12mm | Forward/Reverse, Start/Stop | 00000000 | 00000 |
5mm × 5mm | 19.1mm | 19.1mm | Not Rated | 20 | 3° | 0.15mm | Forward/Reverse, Start/Stop | 00000000 | 00000 |
5mm × 5mm | 22.4mm | 15.9mm | Not Rated | 12 | 3° | 0.2mm | Forward/Reverse, Start/Stop | 00000000 | 00000 |
5mm × 5mm | 25.4mm | 19.1mm | Not Rated | 25 | 3° | 0.2mm | Forward/Reverse, Start/Stop | 00000000 | 00000 |
6mm × 5mm | 19.1mm | 19.1mm | Not Rated | 20 | 3° | 0.15mm | Forward/Reverse, Start/Stop | 00000000 | 00000 |
6mm × 5mm | 22.4mm | 15.9mm | Not Rated | 12 | 3° | 0.2mm | Forward/Reverse, Start/Stop | 00000000 | 00000 |
6mm × 5mm | 25.4mm | 19.1mm | Not Rated | 25 | 3° | 0.2mm | Forward/Reverse, Start/Stop | 00000000 | 00000 |
8mm × 5mm | 19.1mm | 19.1mm | Not Rated | 20 | 3° | 0.15mm | Forward/Reverse, Start/Stop | 00000000 | 00000 |
8mm × 5mm | 25.4mm | 19.1mm | Not Rated | 25 | 3° | 0.2mm | Forward/Reverse, Start/Stop | 00000000 | 00000 |
8mm × 5mm | 38.1mm | 25.4mm | Not Rated | 63 | 3° | 0.2mm | Forward/Reverse, Start/Stop | 00000000 | 00000 |
10mm × 5mm | 25.4mm | 25.4mm | Not Rated | 42 | 3° | 0.15mm | Forward/Reverse, Start/Stop | 00000000 | 00000 |
10mm × 5mm | 38.1mm | 25.4mm | Not Rated | 63 | 3° | 0.2mm | Forward/Reverse, Start/Stop | 00000000 | 00000 |
13mm × 5mm | 31.8mm | 31.8mm | Not Rated | 84 | 3° | 0.15mm | Forward/Reverse, Start/Stop | 00000000 | 000000 |