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RG Shaft Encoder


Features and Options:

  • Size 22.5 housing
  • Resolutions up to 2400 CPR
  • Dual or triple output models with any combination of CPR on each output
  • 120 VAC supply voltage option
  • Various mounting adapters and custom shafts
  • USAMade in the USA



Product Description

The model RG optical shaft encoder features rugged construction and flexible mechanical configurations making it ideally suited for many industrial shop-floor environments.  Output pulses are generated when a shatter-proof optical disk internally mounted on the encoder shaft and having the specified output pattern is read by 1, 2, or 3 opto-sensors depending on the number of outputs required. The matched LED and opto-sensor pairs, compensation circuitry and rugged aluminum housing assure continuous, reliable operation in industrial environments over a 0° to 70° C temperature range.

The electrical outputs are designed to be compatible with most instruments, electronic counters, PLC's and other similar industrial motion control devices. Optional differential line driver outputs allow for longer cable runs (hundreds of feet) and higher electrical noise immunity.

Industry Use

Medical Printing and Labeling Custom Machine Builders Packaging
Aerospace Robotics Automated Scales  

Product Documentation

Additional Information

View FileDatasheet
View FileDrawings

Shaft Options
Output Types
Counts per Revolution Options
Anti-Jitter Option
Supply Voltage Options
Output Circuits

Modified Versions

Modification Description  
M49 2" shaft length, 5/16" shaft diameter, 12 vdc automotive power option View FileDatasheet
M82 28mm shaft length, 12mm shaft diameter View FileDatasheet
M89 1/2" shaft length, 1/4" shaft diameter, MB-75 adapter, ECCI OS25-...-40/5-A10 compatible View FileDatasheet
M91 10-pin connector for A, B, Z differential line driver outputs View FileDatasheet
M113 Encoder with 4 outputs View FileDatasheet
M116 1-5/8" shaft length, 3/8" shaft diameter View FileDatasheet
M129 Encoder with 2 independent, single output circuits View FileDatasheet
M136 1/2" shaft length, 1/4" shaft diameter, MB-75 adapter, 74265 line driver, Fischer connector View FileDatasheet
M139 Single output encoder with Enhanced Anti-Jitter feature View FileDatasheet
M154 Encoder with 2 independent, single output circuits, and
"Y" cable that interfaces the encoder to 2 standard encoder cables
View FileDatasheet
View FileDatasheet
M155 10mm shaft diameter, 28mm shaft length, M4 x .7 bolt holes View FileDatasheet
M171 RGC encoder with 1/4-20 threaded shaft View FileDatasheet

For environmentally sealed general purpose Shaft Encoder see our RJ Shaft Encoder.