Suma Precision Machinery

Features
Complete Freewheel FR … CA incorporate a freewheel FR … and a gear coupling. Free - wheels are supplied oil or grease lubricated.
Complete clutch couplings are used as:
➧ Overrunning Clutches
Maximum torques up to 55 000 lb-ft.
Bores up to 7 inch.
Complete Freewheels FR … CA allow for removal of the assembly without moving the connected equipment. The clutch should always be mounted on the low temperature shaft of the application.

Application Example
Two Complete Freewheels FR … CA with gear coupling as overrunning clutches in the drive unit of a tube mill with additional auxiliary drive. A freewheel FRSG 600 CA 2.0 (Freewheel 1) is arranged between the main drive and the right angle gear box. A freewheel FRZ 500 CA 1.5 (Freewheel 2) with sprag lift-off Z (page 26) is positioned between the auxiliary drive and the right angle gear box. If the auxiliary drive is operating, Freewheel 2 works in the driving operation and the Freewheel 1 overruns at a low
speed (freewheel operation). When driving via the main drive, the unit is driven thru Freewheel 1 (driving operation) Freewheel 2 overruns and automatically disengages the auxiliary drive (freewheeling operation). With the high speed, the type with sprag lift-off Z is used. There is no contact of the sprags during freewheeling and therefore no wear.