We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
R21-P
Size 20 8" or 20cm wheel design w/user selectable parameters
The model R21 is an optical shaft encoder in a 2" diameter x 1-7/8" (Ø51mm x 48mm) housing 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. This is not a light duty encoder - it was built with heavy duty bearings and solid construction for reliable, long-term operation in continuous duty applications. During installation various features, such as the number of pulses per revolution, can be selected by setting configuration switches. The available features depend on the encoder model.
Call or visit our website for details about currently available programs, and to inquire about new features to meet your specific application needs.
Features and Options:
|
|
|
R21-P, 16mm Connector
R21-P + cable
R21-P, M12 Connector
R21-P with MB-UB1
R21-P with MB-UB2
R21-P with MB-UB3
R21-P with MB-UB4
Here is a listing of the Measuring Wheels for the R21. The measuring wheels come attached to the encoder from the factory. For more information, please click on the part number.
| 8" Measuring Wheel: | |
| MW8 [MW-1-8] | 3/8" bore |
| 10" Measuring Wheel: | |
| MW10 [MW-10-B] | 3/8" bore |
| 12" Measuring Wheels: | |
| MW1 [MW-1-B] | 3/8" bore |
| MW1R [MW-1R-B] | 3/8" bore, replaceable O-Ring |
| MW1W [MW-1W-B] | 3/8" bore, 1" wide |
| 20cm Measuring Wheel: | |
| MW20 [MW-20-B] | 3/8" bore |
| 30cm Measuring Wheels: | |
| MW30 [MW-30-B] | 3/8" bore |
| MW30R [MW-30R-B] | 3/8" bore, replaceable O-Ring |
| MW30B [MW-30W-B] | 3/8" bore, 1" wide |
Here is a listing of the suggested Mounting Options. For more information, please click on the part number.
Flexible/Rigid Mounting Brackets & Tethers:
| MB-UB6: Rigid under-belt mounting bracket for wheeled encoders, without MB-RD4 adapter |
Wheel Mounting Options:
| MB-UB4: Spring loaded, under-belt mounting assembly | MB-UB2: Offset mounting bracket - 7" arm |
| MB-UB3: Spring loaded, under-belt mounting assembly with pivot yoke | MB-UB2A: Offset mounting bracket for wheeled encoders - 11.25" arm |
| MB-UB4W: Spring loaded, under-belt mounting assembly, with shims | Y-2G: Wheeled encoder mounting yoke, under belt |
| MB-UB1: Under-belt counter-weight mounting assembly | Y-1G: Wheeled encoder mounting yoke, 1/4-28 cap screw |
| MB-UB1M: Under-belt counter-weight mounting assembly for wheeled encoders (metric) | Y-3G: Wheeled encoder mounting yoke, 3/8-16 cap screw |
| MB-UB1A: Under-belt counter-weight mounting assembly, 2 weights | |
| MB-UB1 M185: Under-belt counter-weight mounting assembly with 2 weights, no rod |
Here is a listing of the suggested Cable Assembly electrical connections. For more information, please click on the connectors.
| 12mm, 4-pin | ||
| M12.4-3-10 RC: 3 wire, 10ft | M12.4-4-10 RC: 4 wire, 10ft | |
| M12.4-3-20 RC: 3 wire, 20ft | M12.4-4-20 RC: 4 wire, 20ft | |
| M12.4-3-3M RC: 3 wire, 3M | M12.4-4-3M RC: 4 wire, 3M | |
| M12.4-3-6M RC: 3 wire, 6M | M12.4-4-6M RC: 4 wire, 6M | |
|
|
||
| 16mm, 6-pin | 16mm, 8-pin | |
| D6-3-10: 3 wire, 10ft | D8-4-10: 4 wire, 10ft | |
| D6-3-20: 3 wire, 20ft | D8-4-20: 4 wire, 20ft | |
| D6-3-3M: 3 wire, 3M | D8-4-3M: 4 wire, 3M | |
| D6-3-6M: 3 wire, 6M | D8-4-6M: 3 wire, 6M |
| Program | Description | |
| 8EAJ |
|
 Datasheet |
| 20EAJ |
|
Datasheet |
| 64AJ |
|
Datasheet |
| 144AJ |
|
Datasheet |