Timing Belts - Cross & Morse - #4

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table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:10.00pt "Impact", sans-serif; } .font1 { font:8.00pt "Lucida Sans Unicode", sans-serif; } .font2 { font:9.00pt "Lucida Sans Unicode", sans-serif; } .font3 { font:10.00pt "Lucida Sans Unicode", sans-serif; } .font4 { font:7.00pt "Palatino Linotype", serif; } .font5 { font:8.00pt "Palatino Linotype", serif; } .font6 { font:9.00pt "Palatino Linotype", serif; } .font7 { font:12.00pt "Palatino Linotype", serif; } .font8 { font:25.00pt "Palatino Linotype", serif; } .font9 { font:8.00pt "Trebuchet MS", sans-serif; } .font10 { font:10.00pt "Trebuchet MS", sans-serif; } Timing Belt Drives CD Cross & Morse Timing Belt Drives take their place in industry as a highly efficient, job proven medium for mechanical power transmission. Because these drives combine many important exclusive characteristics, they present an entirely different concept in the transmission of power. They are highly versatile in application and speed range. Timing belt drives are positive and offer accurate synchronisation of speed, and often make possible worthwhile economies in the design of a machine, because they require less space, reduce bearing specification, eliminate tension devices, yet assure an unusually high degree of efficiency. Virtually every industry has tested and approved timing belt drives. They have been adopted as standard equipment by a wide variety of machine builders and equipment manufacturers. Millions of successful drives in operation without belt replacement for more than five years bear testimony to these drives. Cross & Morse offer three types of timing belt drive to cover the full spectrum of industrial requirements. + 4 6 O O 5 5 The Classical Timing Belt Drives pages 29-36 These are the original tooth belt drives, introduced for the transmission of low torque instrumentation drives more than forty years ago, and since developed and adopted for millions of drive applications. Eight different pitch configurations were produced, but later belt designs have eliminated the demand for all but three sizes. Cross & Morse offer complete drives to 1/5" (XL), 3/8" (L), and 1/2" (H) pitch sizes with both pilot bored and taper bored pulleys. Drives to other configurations can be supplied to order. The Classical Timing Belt is the ideal low cost drive for powers up to 25 KW with a wide range of both belts and pulleys available from stock. Double sided belts and open ended belts can also be supplied. + 4 rO 1 The Metric Series Belt Drives pages 11-22 Demands for ever increasing powers and speeds led to the introduction of a Metric Series of High Torque Drive Belts, using a parabolic tooth profile to enable increased tooth contact between belt and pulley. The new tooth profile has improved shear stress resistance, increased power capacity, and reduced noise levels. Pirelli introduced the RPP belt with an indentation at the top of the teeth, to allow local elastic deformation during meshing with pulley, and easier air discharge to further reduce noise levels. Cross and Morse combine RPP belts with std. Metric pulleys to provide off-shelf drives in 4 pitches; 3mm (3M), 5mm (5M), 8mm (8M), and 14mm (14S). Further development created RPP Silver Belts in 8mm (8S) and 14mm (14S) pitch with double power capacity; and Panther Belts in 8mm (8G) and 14mm (14G) pitch with treble capacity; both still operating on standard metric pulleys allowing full interchangeability with existing drives. Drives up to 600 KW can now be transmitted. 2 5 O 7 9 m 3 a w CD en Polyurethane Timing Belt Drives pages 37-44 These belts use steel tension cord encased in a polyurethane jacket with integral teeth. The method of manufacture ensures tight control of pitch length for applications where accurate positioning is required. Polyurethane is a non-crumbling, non-marking material with excellent resistance to mineral oils, greases and light acidic solutions making it an ideal material for food applications, on cigarette manufacturing machines and paper transporting systems. Polyurethane belt drives are available in 3 pitch sizes, 2.5mm (T2.5), 5mm (T5) and 10mm (T10), with a selection of pilot bore pulleys. Double sided belts and long open end belt lengths are also available. For reciprocating drives clamping plates are available to retain the belts. © n o en en 3 O r en CD o o m 2 ^ INDEX BACK NEXT ^