Freewheel technology

RINGSPANN freewheels are an essential design element in the machine and automotive industry as well as aviation technology. Concerning know-how and technology RINGSPANN belongs to the leading manufactures of the world. The freewheel as an automatic driving element is preferred to conventional solutions because of its decisive advantages offered in respect of operating safety economics higher degree of automatisation.

Freewheel function:

outer ring driving components (rollers, sprags) inner ring

Freewheels are machine elements with particular characteristics: in the one direction of rotation no driving contact between inner and outer ring; the freewheel is freewheeling; in the other direction of rotation driving contact between inner and outer ring; in this direction it is possible to transmit a high torque. The drive mode is free from slip.

Construction:

	The Sprag Freewheel has outer and inner rings with cylindrical races. Arranged in between are the indiviually sprung sprags. Due to varying sprag shapes several types are possible and can be supplied for - high torques - high indexing accuary - noncontact overrunning operation
	The Roller Ramp Freewheel is equipped with roller ramps on either the inner or the outer ring and a cylindrical race on the corresponding other ring. The individually sprung rollers are arranged in between.

Applications:

	Overrunning coupling: disengages in barring drives it the barring drive motor from the main motor as soon as this is switched on; in multimotor drives it allows the automatic disengagement of the non-driving motors; in Ventilators and blowers it disconnects the driven parts from the drive that is switched off. < Click here for more information.
	Indexing Freewheel: replaces reduction gears in printingmachines, textilemachines, sowing machines, continuous-heating furnaces and electrical power switchers for producing fine feeds in packing-, paper processing-, printing- and textile machines; as feed installation in planing, shaping and grinding machines; for automatic compensation for wear in brakes. < Click here for more information
	Backstops: prevent the conveyor or elevator load from running back when the motor is switched off or in case of power failure; prevent reverse running in or on gears, electric motors and gear motors for the drive of conveyor installations after switching off. < Click here for more information
	Irreversible locks: lockes steerable wheels, rudders in ships and aircraft, hatches and windows, aerials and gates against reverse torques. < Click here for more information

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