Freewheels - their Functions and Applications2Freewheel Types4-5 Backstop Elements - B200 & B500 10 Backstops: - CR 21 - CR/BV 20 - CR/BW 20 - RSBF 21Combined Sprag and Bearing Units:- CKK& CSK 8 - GFK 17Contact Free Clutches:- RAZ&RIZ 21 - RSBI& RBI 21Couplings - AGF 16 Keyseated Outer Race Clutch - AGFN 13-14 Index Clutches - HT 7 Miniature Freewheels - KI 17 Ratchet Freewheels - IRF 19 Roller Ramp Clutches:- AA 12 - AEF 12 - ANF 12 - ANR 12 - CNAS 11 - CNFS 11 Roller Ramp Clutch with Bearing - ASK 17 Roller Ramp Clutch - AGF Self Contained 13-15 Single Rev Clutches: - BAT 18 - CTK 18Sprag Clutches:- M Series 5-6 - PB7Sprag Elements - BW 9-10 > Catalogue Selection INDEX EnquiryCD Contents > CROSS+MORSE Power Transmission Solutions Power Transmission Solutions size="-1">

Power Transmission Solutions Tel +44 121 360 0155 Fax +44 121 325 1079 Email [email protected] As already described freewheels are used for three types ofoperation:- > Sprag Clutches consist of plain diameter concentric inner and outer races with individual spring loaded sprags between. A light spring ensures that the sprags always maintain contact with the races.Torque is transmitted by the wedging action of the sprags betweenthe races. The sprags are formed with the dimensions across one set ofdiametrically opposite corners "A", less than the radial gap betweenthe inner and outer races,...

Power Transmission Solutions Tel +44 121 360 0155 Fax +44 121 325 1079 Email [email protected] Types RSBI and RBI backstop clutches consist of cylindrical innerand outer races between which are located individually spring loaded, special shape sprag elements contained in a cage. The cage is flexibly connected to the inner race to allow the sprags to engage easily during torque application. When the inner race rotates at high speed the off-centre weight of the elements causes them to rotate within the cage to produce a gap with outer race.These clutches are designed for backstop applications...