The FK was the first constricting style drum clutch to be introduced to the power transmission industry. Due to its reliability and simplicity in design, the Gummi type FK element is well suited as a clutch or brake in a wide variety of high-speed, low to medium torque applications where high heat generation is not a factor. The type FK elements are available in 18 sizes, in single, dual, and split configurations.

Torque Ratings up to:
1,220,000 lb-in
137.890 N-m

* Also known as a Type CB element