CR-Series Roller Clutches
Clutches for Installation in Your Housing
CR-Series Roller Clutches:
CR-Series Tiny-Clutches are captured roller and cam assemblies that work the same as our D-Series, but which are installed in your housing. The clutch has near zero backlash & allows high overrunning speeds, making them ideal for machines requiring overrunning, backstopping, freewheeling or one-way clutches, such as inclined conveyors, tape and film drives, riveters, stampers 
etc. CR-Series clutches are a proven cam and roller principle that provides long trouble free life. The outer housing and cam drive each other through wedging action between the rollers and the housing. The rollers are maintained in contact with the housing by individual springs & side plates capture the rollers in position relative to the cam. Power may be applied to the clutch through either the housing or the shaft. Clutches may be mounted for either R.H. or L.H. drive & the cam is screwed or keyed to the shaft. MATERIALS - Cam is hardened & ground Steel; Rollers are hardened & ground ball bearing type steel. All stainless clutches are also available.
CR-Series Tiny-Clutches are available for shafts up to 1/2", torque loads up to 25lbs-in | 2.8Nm & speeds up to 7000RPM. We will design & build special or modified clutches for your application using stock components. Clutches can be supplied as complete mechanical assemblies consisting of clutch, shaft and adjacent parts.
Standard CR-Series Clutches:
| Bore-Inch | |||||
| Min. | Max. | Max. Torque | Max. Speed | Notes | |
| CR462 | 1/8" | 1/4" | 4lbs-in | 0.5Nm | 7000RPM | |
| CR662 | 1/8" | 1/4" | 8lbs-in | 0.9Nm | 6000RPM | Wide Version of CR462 |
| CR887 | 5/16" | 3/8" | 20lbs-in | 2.3Nm | 5000RPM | |
| CR102 | 5/16" | 1/2" | 25lbs-in | 2.8Nm | 4500RPM | |
| CR102T | 5/16" | 1/2" | 15lbs-in | 1.7Nm | 4500RPM | Thin Version of CR102 |
CR-Series Roller Clutch Benefits:
- A Compact Unit-Assembly Designed to be Built into the Customer's Equipment
- Proven Cam and Roller Principle for Long Trouble-Free Performance
- Positive, No-Slip driving Action
- Near Zero Backlash
- Will Not Jam in Free Direction
- High Free-Wheeling Speeds with Long Life
- Retainers are Positively Oriented and Securely Fastened to the Cam
CR-Series Roller Clutch Mounting:
The CR-Series Clutches should be installed according to good bearing practice, using either bushings or bearings. It is important the clutch NOT be used as a roller bearing.
For best performance, race should be concentric with housing bearing within .002 T.I.R.
Unhardened steel housing races are adequate for many applications. Housings with a race surface hardened to Rockwell C-60 are recommended for high torque, shock duty or for high overrunning speeds.