Axial Restraint Keys | Formsprag Clutch

Restraint keys are a cost effective method of providing axial restraint for clutches and holdbacks . The restraint key is longer than the clutch through bore length or clutch width . The single block key will prevent axial movement in only one direction and must be used with some other means to prevent movement in the other direction such as a set collar or a step in the shaft . The double block key will prevent axial movement of the clutch in either direction . All restraint keys must be secured in the shaft keyseat . This can usually be accomplished by cutting the keyseat with an end mill without breaking out at the end of the shaft .

Product Data Sheets

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

Product Catalog

  • Overrunning, Indexing, Backstopping Clutches

Related Literature

  • p-1723-4
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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

Axial Restraint Key
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