FENNER FREE SHOE CENTRIFUGAL CL UTCHES Fenner (India) LimitedPon Wek oR Lead FENNER FREE SHOE CENTRIFUGAL CLUTCHES (EaIeN™ Di 1A 4) aE Dy Fenner Centritugal Clutches, long accepted by industry, cage motor, onstarting under full loadimposes a heavy have now been modified and streamlined so that a first: Class piece of standardised equipment can be ordered ‘and supplied from stock, ‘A centrifugal clutch is used mainly to relieve the starting joad on a motor or prime mover. A Sphase, squirrel How the Centrifugal Clutch ‘The centrifugal clutch transmits power by the frictional contact of slippers, lined with a suitable friction ‘material, when pressed against the clutch shell by centrifugal force due to the speed of rotation of the supporting member. Thus the clutch consists of two. distinct parts, the spider (or driving) member carrying the slippers and the shell (or driven member) to which may be attached pulleys, sprockets or other means of transmitting the power. A centrifugal clutch will only function when the spider is fixed to the driving ember. HORSE POWER TARLE caren size T T 8s | 105 195 164 Current inthe circuit; the use of a centrifugal clutch allows the motor to start under no load until it has attained a predetermined speed after which the. load is applied gradually and automatically. In this way there isnoneed to use expensive starting equipment. Works Because there is no exaggerated starting load real economies can be made, both as regards size of motor and electrical installation. In practice it will also be found that the absence of shockload very materially reduces the need for msintenance on the machine itse. Three main types of centrifugal clutches are available 1 CLUTCH COUPLING for connecting an electric motor or other prime mover to the extension shaft of a driven machine, reduction gear, or lineshott: EXTENDED SLEEVE CLUTCH for attachment of pulleys, chain sprockets or gear wheels by keying them on to the sieeve. PULLEY CLUTCH with the pulley forming an integral part of the clutch shell. In such a case the shell may be fitted with ball or plain bearings.M BMH Aree ok POWER Te ReAeN soe M les S lOmin Clutch Dimensions COUPLING CLUTCH re BORE cus Peete oe lec etc TaN PAK oF i 1 or | 3 5a a 2B 28 Qe 8h a 2 Br | 3 om & 34 38 3 104 14 | 93 | 104 | 3h 6 * 3e 3t ae 12 = at | we] 44 oF id a ay st —— 14 or | at | 4e| ae Br o 4 4 or we | ef | soe [oe [sot | [st [se | ot Al dinero ae hen in wcres SMALL eee p = internal clutch portion sof course standard PULLEY LZ tut please remember thatthe outer portion has z to be made evel to your specs nees CLUTCH Inevitably this is reflected both in price and delivery. The extended portion can be of a diameter larger, cr even slightly smaller, than the clutch shell, anc can be grooved for V-Belts or alternatively, it can si bbe supplied as a flat faced pulley.FE ME-GH AN FOAL POWER TRANSMISSION Clutch with brake drum \With this clutch you can not only start your machine gradually, but also stop it instantaneously whenever necessary Photograph shows an application of clutch with brake drum on a winch.