Tri-Tronics Company, Inc. R21 Single Wheel Linear Measurement Encoder

Product Description The model R21 is a size 20 encoder that is a compact 2" diameter x 1-7/8" (Ø51mm x 48mm) long optical shaft encoder with an integral mounting arm, compatible with a variety of mounting accessories for installation either above or below a moving web or conveyor. When used with the MW-8 (8.00" circumference) or MW-20 (20.00cm circumference) measuring wheel it can accurately track the web or conveyor to within ±.007" or ±.016cm per revolution. Solid construction and heavy duty bearings make this encoder a great choice for long-term operation in continuous duty applications. Industry Use Conveyor Manufacturers Printing and Labeling Custom Machine Builders Packaging Material Handling Product Documentation Additional Information Datasheet Drawings DOWNLOAD 3D STEP R21 STEP R21 MW8 STEP R21 MW10 STEP R21 MW20 (not all 3D model variations available) Output Types Counts per Revolution Options Anti-Jitter Option Supply Voltage Options Output Circuits Modified Versions Modification Description M203 Environmentally sealed - IP66 Datasheet M265 R21 with shortened mounting handle Datasheet For our programmable Wheel model, please see our R21-P Programmable Wheel Encoder.