Aerospace Market

Rotary Wing Aircraft

Formsprag Clutch

Form-Lock Bi-directional Clutches & Backstops


The Form-Lock (FL) is a mechanical clutch that can be driven in both directions while automatically providing a holding brake function when the driving torque is stopped.

    • Bi-directional,purely mechanical operation
    • Minimal backlash Smooth,consistent torque transmission
    • Positive holding under load
    • Custom configurations for virtually any application