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R20 Shaft Encoder
Features and Options:
- Shaft size from 0.250" to 0.375"
- Metric shaft size from 4mm to 8mm
- Unbreakable code disk
- Resolution up 1200 PPR
- Servo ring and face mount options
- IP66 environmental seal option
- Enhanced anti-jitter option
Made in the USA
Product Description
The model R20 is an optical shaft encoder in a 2" diameter x 1-3/4" long housing that can be face mounted using three 6-32 x .25" deep mounting holes on a 1.75" diameter bolt circle. The shaft is up to 3/8" diameter, either single or double ended. Electrical connection is through a 16mm circular connector or an attached cable.
Industry Use
| Conveyor Manufacturers | Medical | Printing and Labeling | Custom Machine Builders |
| Packaging | Robotics | Material Handling | Aerospace |
| Automated Scales | Lumber |
Product Documentation |
Additional Information |
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Shaft Options |
Modified Versions
| Modification | Description | |
| M131 | Encoder with M12 4-pin connector (Not reccomended. Use S3 for connector termination) |  Datasheet |
| M139 | Single output encoder with Enhanced Anti-Jitter feature | Datasheet |
| M187 | Servo mount configuration with .687" diameter male pilot | Datasheet |
| M200 | Multiple R20 encoders sharing a common shaft (call for information) | Datasheet |
| M203 | Environmentally sealed R20 - IP66 | Datasheet |
| M212 | R20 with 25mm dia x 10mm boss and 6mm dia x 10mm shaft, IP54 seals | Datasheet |
For our programmable Shaft model, please see our R20-P Programmable Shaft Encoder. For our Hollow Shaft model, please see our HS20 Hollow Shaft Encoder.