CDU Series | Formsprag Clutch

CDU (Continuous Drive Unit) Series Overrunning Clutches are designed to be robust for the most difficult applications. CDU Series Overrunning Clutches are intended for use in continuous overrunning applications where the system cannot be shut down for maintenance and for applications in extremely harsh and dusty environments such as coal handling systems. A CDU consists of an FSO overrunning, sprag clutch installed in a foot-mounted housing which encloses a generous supply of oil.

Product Features

  • PCE Sprags
    Help prevent clutch damage due to transient overloads or torsional vibrations
  • Formchrome Sprags with 70 Rc Hardness
    Maximum wear life for extended clutch service
  • Large Oil Reservoir
    Minimum maintenance (increased lubrication capacity)
  • Grease Barrier Seals
    Protects oil seals from dusty and abrasive conditions providing extended seal life
  • Oil Fill and Drain Ports
    Ease of maintenance
  • Breather
    Pressure equalization without affecting oil seals
  • Foot Mounted Unit
    Stand alone unit provides for easy access, installation and removal without disturbing equipment
  • Optional Centrifugal Throw-out (C/T) Sprag Design
    Provides extended clutch life by eliminating rubbing contact of sprags during overrunning portion of duty cycle
  • Oil Sight Gauge
    Provides a convenient method for checking oil level with CDU in operation

Product Data Sheets

  • p-956-fc_cdu
Click on image below to download pdf. To order hard copies of literature click here.

Product Catalog

  • Overrunning, Indexing, Backstopping Clutches

Service Manual

  • CDU Models 500 thru 1051 Installation

Product News

Contact Info

Formsprag Clutch
23601 Hoover Rd.
Warren, MI 48089 - USA
Toll Free: 1-800-348-0881 (Press #1)
Phone: 586-758-5000
Fax: 586-758-5204

CDU Series

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