Model FSO
General purpose, ball-bearing clutches suitable for overrunning, backstopping and light to medium-duty indexing applications.
They are oil lubricated and equipped with lip type seals. Grease is available. Increased
speeds are possible with steel labyrinth seals.
C/T Sprag Models
(FSO Only)
C/T sprag clutches are ideal for applications with high speed outer race overrunning and low speed driving. Available with oil lubrication only.

Model HPI
Especially designed for medium to heavyduty indexing applications, or applications in excess of 150 strokes/min. to provide the maximum in dependable, uniform, long life
performance except models FSO 550 & FSO 650. They are oil lubricated and equipped with lip type seals. Grease is available.