Cross and Morse are a Power Transmission manufacturer with a range of drives, bearings, shafts, rollers, chains, and clutches.

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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.
*The Classical Timing Belt Drives* 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 to1/5" (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.
*The Metric Series HTD Belt Drives* 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 (14M). Further development created RPP Plus Belts in 9mm (8H) and 14mm (14H) pitch with double power capacity; and Panther Belts in 8mm (8P) and 14mm (14P) pitch with treble capacity; both still operating on standard metric pulleys allowing full interchangeability with existing drives. Drives up to 800 KW can now be transmitted.
*Polyurethane Timing Belts* 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 pressing machines and paper transporting systems. Polyurethane belt drives are available in 3 pitch sizes, 2.5mm (T2.5), 5mm (T5 & AT5) and 10mm (T10 & AT10), 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. A new range of PU belts to operate on standard HTD pulleys is available in 5mm, 8mm and 14mm pitch in open end construction for high load reciprocating drives.
*V Belt Taper Bore Pulleys* Cross + Morse Crown V-Belt Pulleys are all manufactured in Fine grain Cast-iron of grade 220-260 using the latest Foundry processes, combined with CNC lathes for finishing. All Pulleys fully conform to ISO 4183 and DIN 2211 Standards, designed to fit both Wedge(narrow) and Classical V-Belts. Concentricity of Outside Diameter to Bore, and Groove side run-out are maintained within the requirements of DIN 2211 part1, and Surface Finish to ISO 254. All Pulleys are Statically Balanced to ISO 1940 Standard; pulleys up to 125mm pitch circle diameter balanced to grade G6.3;a residual unbalance of 2 grams on the pitch diameter being acceptable. The residual unbalance is<100gram mm/kg at 600 rpm and 20gram mm/kg at 3000 rpm. Dynamic Balancing can be provided if requested. A wide range of pulleys are available for SPZ, SPA, SPB and SPC belts, finished bore for taper bushes or we can supply pilot bored in a few days.
*Timing Belt Drives and Ancillaries* Clamping Plates, Classical Timing Belts and Pulleys, Classic Belts - Standard Range, Classical T/Belt Pulleys - Pilot Bore (XL,L,H), - Taper Bore (L,H) Metric Timing Belts and Pulleys - Metric Belts - Standard Range, Metric Belts - Green Power Open Ended Belts. Metric T/Belt Pulleys - Avante System (5M,8M,14M) - Pilot Bore (3M,5M,8M,14M) - Taper Bore (5M,8M,14M) Polyurethane Timing Belts and Pulleys - Polyurethane Belts - Standard Range - Open Ended Belts Polyurethane T/Belt Pulleys - Avante System (T5, T10) - Pilot Bore (T2.5, T5, T10 AT5,AT10) Taper Bore Bushes Timing Bars