MODEL : FBF Series Complete Freewheels  

Complete Freewheels FBF

with mounting flange

with sprags, available in five types

Features

Complete Freewheels FBF with mounting flange are sealed sprag freewheels with ball

bearings. They are supplied oil-filled and ready for installation.

The freewheels FBF are used as:

 Backstops

 Overrunning Clutches

 Indexing Freewheels

In addition to the standard type, four other types are available for extended service life and

indexing accuracy. Nominal torques up to 160 000 Nm. Bores up to 300 mm. Many standard bores are available.

Application example

Complete Freewheel FBF 72 DX as an overrunning clutch in the drive of a meat processing

machine (chopper). During the mixing process, the gear motor drives the bowl via the gear

wheel drive and simultaneously the knife shaft via the belt drive and the locked freewheel. In

the cutting process, the knife shaft is driven by a second motor at high speed. By doing so, the

inner ring overruns the outer ring that is driven by the gear motor and the gear motor is automatically disengaged. With the high speed of the inner ring in freewheeling operation, the

type sprag lift-off X is used; the sprags work in freewheeling operation without contact and

hence are wear-free.

Mounting

The customer attachment part is centered on the external diameter D and then bolted on to

the face via the flange. The tolerance of the shaft must be ISO h6 or j6 and the tolerance of the pilot diameter D of the attachment part must be ISO H7 or J7.

Example for ordering

Freewheel size FBF 72, type with sprag lift-off Z and 38 mm bore:

• FBF 72 LZ, d = 38 mm

When ordering, please also specify the free - wheeling direction of the inner ring when view -

ed in direction X:

• counterclockwise free or

• clockwise free