Rotary Motion Position-Measuring Transmitters
Provide motion feedback to counters, controllers, and motor drives for automated motion control and measurement applications. Also known as encoders, transmitters convert rotary motion to an electrical signal so you can operate your system based on distance, direction, and speed of travel. Transmitters have Pull-Up Resistor output.
Use a flexible shaft coupling (not included) to connect the transmitter shaft to a drive shaft.
Mount a wheel (not included) to use transmitters to measure lengths.
Use cables (not included) to connect transmitters to counters and controllers.
Transmitters with a quadrature output channel must be used with a controller that has quadrature detection to get a 4X resolution increase.
Mount. Plate | Mount. Holes | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Counter Function | Output Channels | Resolution Increase | For Max. Shaft Speed, rpm | Input Voltage  | Output Current, mA | Shaft Coupling Required | Body Material | Shaft Material | Lg. | Wd. | Ctr.-to-Ctr. | Thread Size | Choose a Resolution | Each | |
Single Output Channel | |||||||||||||||
| Up | A | 2X | 6,000 | 5V DC-28V DC | 250 | Yes | Aluminum | Stainless Steel | 2 1/4" | 2 1/4" | 1.41" | 6-32 | 00000000 | 0000000 | |
Quadrature Output Channel | |||||||||||||||
| Up and Down | A, B | 2X, 4X | 6,000 | 5V DC-28V DC | 250 | Yes | Aluminum | Stainless Steel | 2 1/4" | 2 1/4" | 1.41" | 6-32 | 00000000 | 000000 | |
Rotary Motion Position-Measuring Transmitter Kits
In addition to a transmitter, these kits include a 6 1/2-ft. cable and a mounting bracket. Also known as encoders, transmitters convert motion to an electrical signal to indicate distance, direction, and speed in process control and metering applications. These kits are commonly used to monitor the position or velocity of rotating equipment. You can also mount a wheel (not included) to measure distance in linear applications. Transmitters must be used with a controller that has quadrature detection to get a 4X resolution increase. Output channel Z is also known as an index channel.
Use a flexible shaft coupling (not included) to connect the transmitter shaft to a drive shaft.
| For Counter Function | Output Channels | Resolution Increase | For Max. Shaft Speed, rpm | Input Voltage | Output Current, mA | Resistor Included | Body Material | Shaft Material | Fasteners Included | Fasteners Required | For Mounting Screw Size | Choose a Resolution | Each | |
Quadrature with Index Output Channel | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Up and Down | A, B, Z | 2X, 4X | 6,000 | 5V DC-28V DC | 20 | No | Plastic | Stainless Steel | No | Yes | 1/4" | 00000000 | 0000000 | |
| 6" Circumference Polyurethane Wheel (1.91" Dia. × 1/4" Wd.) | 00000000 | Each | 000000 |
Sanitary Rotary Motion Position-Measuring Transmitters
Also known as encoders, these sanitary transmitters convey motion to an electrical signal that conveys distance, direction, and speed. They’re often used in control systems to automate servomotors, robotics, and assembly machines in sanitary environments such as food and pharmaceutical plants. Made of corrosion-resistant stainless steel, they won’t rust from frequent washdowns with harsh cleaners. These transmitters are sealed and have a highly polished surface, leaving no room for bacteria to grow and making them easier to clean. They’re rated IP67 for protection from dust, high-pressure jets of water, and submersion in up to a meter of water for 30 minutes.
To achieve a 4X resolution increase, use these transmitters with a controller that has quadrature detection.
Transmitters with three mounting holes are designed to fit on a three-hole servomotor face.
Connect transmitters to counters and controllers with cables (sold separately).
Use a flexible shaft coupling to connect the transmitter shaft to a drive shaft.
Overall | Shaft | Mounting Holes | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Counter Function | Output Channels | Resolution | Resolution Increase | For Max. Shaft Speed, rpm | Input Voltage | Lg. | Ht. | Dia. | Lg. | Mounting Plate Dia. | No. of | Ctr.-to-Ctr. | Thread Size | Specifications Met | Each | |
316 Stainless Steel Body and 303 Stainless Steel Shaft | ||||||||||||||||
Quadrature with Index Output Channel—20mA Output Current | ||||||||||||||||
| Up and Down | A, B, Z | 600 | 2X, 4X | 8,000 | 4.75-28V DC | 2.44" | 3.13" | 0.4" | 0.4" | 2.29" | 3 | 1.43" | M4 × 5 mm | CE Marked | 00000000 | 0000000 |
| Up and Down | A, B, Z | 3,600 | 2X, 4X | 8,000 | 4.75-28V DC | 2.44" | 3.13" | 0.4" | 0.4" | 2.29" | 3 | 1.43" | M4 × 5 mm | CE Marked | 00000000 | 00000000 |
Overall | Shaft | Mounting Plate | Mounting Holes | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Counter Function | Output Channels | Resolution | Resolution Increase | For Max. Shaft Speed, rpm | Input Voltage | Lg. | Ht. | Dia. | Lg. | Lg. | Wd. | No. of | Ctr.-to-Ctr. | Dia. | Specifications Met | Each | |
316 Stainless Steel Body and 303 Stainless Steel Shaft | |||||||||||||||||
Quadrature with Index Output Channel—20mA Output Current | |||||||||||||||||
| Up and Down | A, B, Z | 600 | 2X, 4X | 8,000 | 4.75-28V DC | 3.175" | 3 1/4" | 3/8" | 1 1/16" | 2 1/2" | 2 1/2" | 4 | 2.06" | 7/32" | CE Marked | 00000000 | 000000000 |
| Up and Down | A, B, Z | 3,600 | 2X, 4X | 8,000 | 4.75-28V DC | 3.175" | 3 1/4" | 3/8" | 1 1/16" | 2 1/2" | 2 1/2" | 4 | 2.06" | 7/32" | CE Marked | 00000000 | 00000000 |
| Lg. | Each | |
| 32 3/4 " | 00000000 | 0000000 |
Miniature Rotary Motion Position-Measuring Transmitters with Mounting Plate
Slide one of these transmitters onto a motor shaft in your application—they have a flexible mounting plate that compensates for shaft misalignment and vibration. Also known as encoders, these miniature transmitters convert rotary motion to an electrical signal that indicates distance, direction, and speed of travel. They're often used to automate servomotors, robotics, and assembly machines.
Transmitters have NPN Open Collector output that requires a pull-up resistor (not included) for operation. Output channel Z is also known as an index channel. You must use transmitters with a controller that has quadrature detection to get a 4X resolution increase. All meet IP64 for protection from dust and water spray.
Mount. Holes | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Diameter | Output Channels | Resolution Increase | For Max. Shaft Speed, rpm | Input Voltage | Max. Input Current, mA | Output Current, mA | Body Material | Housing Material | Mount. Plate Wd. | Ctr.-to-Ctr. | Thread Size | Fasteners Included | Choose a Resolution | Each | |
Quadrature with Index Output Channel | |||||||||||||||
| 1/4" | A, B, Z | 2X, 4X | 8,000 | 5V DC-28V DC | 65 | 20 | Aluminum | Plastic | 2.16" | 1.81" | 6-32 | No | 000000 | 0000000 | |
| 3/8" | A, B, Z | 2X, 4X | 8,000 | 5V DC-28V DC | 65 | 20 | Aluminum | Plastic | 2.16" | 1.81" | 6-32 | No | 000000 | 000000 | |
Miniature Rotary Motion Position-Measuring Transmitters
Often used with servomotors, these transmitters have a mounting hole pattern that fits a three-hole 28 mm BC servomotor face. Also known as encoders, these miniature transmitters convert rotary motion to an electrical signal that indicates distance, direction, and speed of travel. They're commonly used in control systems to automate servomotors, robotics, and assembly machines.
Transmitters have NPN Open Collector output that requires a pull-up resistor (not included) for operation. Output channel Z is also known as an index channel. You must use transmitters with a controller that has quadrature detection to get a 4X resolution increase. All meet IP64 for protection from dust and water spray.
Use a flexible shaft coupling (not included) to connect the transmitter shaft to a drive shaft.
Mount. Holes | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Output Channels | Resolution Increase | For Max. Shaft Speed, rpm | Input Voltage | Max. Input Current, mA | Output Current, mA | Shaft Coupling Required | Body Material | Housing Material | Shaft Material | Thread Size | Thread Pitch, mm | Fasteners Included | Choose a Resolution | Each | |
Quadrature with Index Output Channel | |||||||||||||||
| A, B, Z | 2X, 4X | 8,000 | 5V DC-28V DC | 65 | 20 | Yes | Aluminum | Plastic | Stainless Steel | M3 | 0.5 | No | 000000 | 0000000 | |
Linear Motion Position-Measuring Transmitters
Measure the position of an object moving in a straight line. Also known as string pots, these transmitters have an extendable wire cable that measures the relative distance between two points. They convert measurements to an electrical signal for use in controlling system automation.
All are IP rated for some protection from dust. IP67-rated transmitters also seal out water when briefly submersed.
Overall | Mount. Holes | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stroke Lg. | Accuracy Range | Repeatability Range | Max. Input Voltage | Input Resistance, kOhm | Output Voltage | Voltage Resolution | Environmental Rating | Wire Lead Lg. | Eyelet ID | Lg. | Wd. | Ht. | Ctr.-to-Ctr. | Dia. | No. of | Each | |
Style 1 | |||||||||||||||||
| 4 3/4" | -1% to +1% | -0.05% to +0.05% | 30V AC 30V DC | 10 | 28.2V AC 28.2V DC | 0.0001 mV AC 0.0001 mV DC | IP50 | 40" | 0.191" | 3.1" | 1.9" | 2.6" | (A) 1.4" | 1/8" | 2 | 000000 | 0000000 |
| 12 1/2" | -0.25% to +0.25% | -0.05% to +0.05% | 30V AC 30V DC | 10 | 28.2V AC 28.2V DC | 0.0001 mV AC 0.0001 mV DC | IP50 | 40" | 0.191" | 3.1" | 1.9" | 2.6" | (A) 1.4" | 1/8" | 2 | 000000 | 000000 |
| 25" | -0.25% to +0.25% | -0.05% to +0.05% | 30V AC 30V DC | 10 | 28.2V AC 28.2V DC | 0.0001 mV AC 0.0001 mV DC | IP50 | 40" | 0.191" | 3.1" | 1.9" | 2.6" | (A) 1.4" | 1/8" | 2 | 000000 | 000000 |
| 50" | -0.25% to +0.25% | -0.05% to +0.05% | 30V AC 30V DC | 10 | 28.2V AC 28.2V DC | 0.0001 mV AC 0.0001 mV DC | IP50 | 40" | 0.191" | 3.1" | 1.9" | 2.6" | (A) 1.4" | 1/8" | 2 | 000000 | 000000 |
Style 2 | |||||||||||||||||
| 120" | -0.35% to +0.35% | -0.05% to +0.05% | 30V AC 30V DC | 10 | 28.2V AC 28.2V DC | 0.0001 mV AC 0.0001 mV DC | IP67 | 40" | 0.191" | 2.48" | 5.2" | 5.09" | (A) 4 3/4" (B) 4.62" (C) 2.2" | 7/32" 3/16" 3/16" | 6 | 000000 | 000000 |
Stepper Motors with Integrated Motion Control
With a built-in controller and driver, these stepper motors come ready to program and operate. Connect them to a computer and use the free downloadable software to set them up. After that, 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 Inputs/Outputs | Lg. | Wd. | Ht. | Dia. | Lg. | Center to Base | Type | Temp. Range, °F | Each | |
Motors/Controllers/Drivers/Encoders | ||||||||||||||||
NEMA 17 | ||||||||||||||||
| 31 | 3,000 | 0.1-2.2 | 12-48 | 1.8° | 1 to 1/256 | 1 Analog Input, 3 Digital Inputs, 1 Digital Output | 3.7" | 1.7" | 3" | 5mm | 22mm | 0.84" | D-Profile | 35° to 100° | 00000000 | 0000000 |
| 54 | 3,000 | 0.1-2.2 | 12-48 | 1.8° | 1 to 1/256 | 1 Analog Input, 3 Digital Inputs, 1 Digital Output | 3.9" | 1.7" | 3" | 5mm | 22mm | 0.84" | D-Profile | 35° to 100° | 00000000 | 000000 |
| 68 | 3,000 | 0.1-2.2 | 12-48 | 1.8° | 1 to 1/256 | 1 Analog Input, 3 Digital Inputs, 1 Digital Output | 4.2" | 1.7" | 3" | 5mm | 22mm | 0.84" | D-Profile | 35° to 100° | 00000000 | 000000 |
NEMA 23 | ||||||||||||||||
| 100.5 | 2,475 | 0.3-3 | 12-40 | 1.8° | 1; 1/2; 1/4; 1/8; 1/16; 1/32; 1/64; 1/128; 1/256 | 4 Digital Inputs/Outputs | 3.8" | 2.3" | 2.3" | 1/4" | 3/4" | 1.13" | D-Profile | 0° to 120° | 00000000 | 000000 |
| 182.5 | 2,000 | 0.3-3 | 12-40 | 1.8° | 1; 1/2; 1/4; 1/8; 1/16; 1/32; 1/64; 1/128; 1/256 | 4 Digital Inputs/Outputs | 4.3" | 2.3" | 2.3" | 1/4" | 3/4" | 1.13" | D-Profile | 0° to 120° | 00000000 | 000000 |
| 294.5 | 820 | 0.3-3 | 12-40 | 1.8° | 1; 1/2; 1/4; 1/8; 1/16; 1/32; 1/64; 1/128; 1/256 | 4 Digital Inputs/Outputs | 5.1" | 2.3" | 2.3" | 1/4" | 3/4" | 1.13" | D-Profile | 0° to 120° | 00000000 | 000000 |
NEMA 24 | ||||||||||||||||
| 340 | 2,400 | 3-5 | 12-70 | 1.8° | 1 to 1/256 | 1 Analog Input, 4 Digital Inputs/Outputs | 4.9" | 2.4" | 3.8" | 8mm | 21mm | 1.18" | D-Profile | 35° to 100° | 00000000 | 000000 |
Stepper Motors with Encoder
To improve positioning accuracy, these stepper motors have a built-in encoder that monitors the real-time speed and position of the shaft. It sends that data to a controller (not included), which adjusts or stops the shaft if it isn’t in the right place. This makes them useful when relative positioning is critical, such as when coordinating motion between two motors. Stepper motors are good for precise, repetitive movements. Similar to the hands of a clock, their shaft turns in small, equal increments for smooth motion. When the shaft stops, it holds its position even when a counteracting force is applied to the load. All are bipolar hybrid stepper motors, so the current can flow in both directions. This helps them deliver higher torque, precision, and efficiency than unipolar 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.
Full step increment is the rotation of the shaft from one position to the next. A smaller full step increment means the rotor has more teeth, producing smoother and more precise motion. 1.8° is considered standard.
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 | Encoder Positioning Type | No. of Counts per Revolution | No. of Wire Leads | Lg. | Wd. | Ht. | Dia. | Lg. | Center to Base | Type | No. of Shafts | Temp. Range, °F | Each | |
NEMA 17 | |||||||||||||||||
| 26.9 | 1,500 | 0.67 | 1.8° | Incremental | 1,000 | 4 | 2.6" | 2.3" | 1.7" | 5mm | 22mm | 0.84" | D-Profile | 2 | 0° to 120° | 00000000 | 0000000 |
| 39 | 900 | 0.62 | 1.8° | Incremental | 1,000 | 4 | 2.8" | 2.3" | 1.7" | 5mm | 22mm | 0.84" | Solid | 2 | 0° to 120° | 00000000 | 000000 |
| 64 | 750 | 0.7 | 1.8° | Incremental | 1,000 | 4 | 3" | 2.3" | 1.7" | 5mm | 22mm | 0.84" | Solid | 2 | 0° to 120° | 00000000 | 000000 |
| 70.8 | 3,000 | 2 | 1.8° | Incremental | 1,000 | 4 | 3.2" | 2.3" | 1.7" | 5mm | 22mm | 0.84" | D-Profile | 2 | 0° to 120° | 00000000 | 000000 |
| 83.5 | 825 | 1.05 | 1.8° | Incremental | 1,000 | 4 | 3.5" | 2.3" | 1.7" | 5mm | 22mm | 0.84" | D-Profile | 2 | 0° to 120° | 00000000 | 000000 |
| 124.6 | 1,400 | 2 | 1.8° | Incremental | 1,000 | 4 | 3.9" | 2.3" | 1.7" | 5mm | 22mm | 0.84" | D-Profile | 2 | 0° to 120° | 00000000 | 000000 |
| 130.2 | 950 | 2 | 1.8° | Incremental | 1,000 | 4 | 3.9" | 2.3" | 1.7" | 5mm | 22mm | 0.84" | Solid | 2 | 0° to 120° | 00000000 | 000000 |
NEMA 23 | |||||||||||||||||
| 181 | 600 | 2.8 | 1.8° | Incremental | 1,000 | 4 | 3.7" | 2.6" | 2.3" | 1/4" | 3/4" | 1.13" | D-Profile | 2 | 0° to 120° | 00000000 | 000000 |
| 237 | 525 | 4 | 1.8° | Incremental | 1,000 | 4 | 4.6" | 2.6" | 2.3" | 1/4" | 3/4" | 1.13" | D-Profile | 2 | 0° to 120° | 00000000 | 000000 |
| 355 | 900 | 6 | 1.8° | Incremental | 1,000 | 4 | 4.9" | 2.6" | 2.3" | 1/4" | 3/4" | 1.13" | D-Profile | 2 | 0° to 120° | 00000000 | 000000 |
| 467.3 | 300 | 2 | 1.8° | Incremental | 1,000 | 4 | 4.5" | 2.5" | 2.3" | 1/4" | 3/4" | 1.11" | D-Profile | 2 | 0° to 120° | 00000000 | 000000 |
| 600.4 | 1,300 | 6.5 | 1.8° | Incremental | 1,000 | 4 | 4.9" | 2.6" | 2.3" | 1/4" | 3/4" | 1.13" | D-Profile | 2 | 0° to 120° | 00000000 | 000000 |