Benson Beltings Ltd.
	Product Information
	Spen-Flex Polyurethane Timing Belts
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Benson Beltings Spen-Flex range of Polyurethane Timing Belts encompasses a wide variety of metric and imperial belts, in open lengths, truly endless belts, or jointed endless belts with a range of backings, flights and engineered finishes to suit a variety of industrial uses. Spen-Flex timing belts are the perfect choice for applications requiring precision product or component placement. Perfectly formed teeth and accurate tooth tolerances, along with the strength delivered by our steel and Aramid cords, assure efficient entrance and exit from your pulley in your single or bi-directional drive applications. For higher speed applications we offer polyamide fabric added to the tooth side for the ultimate in low noise and wear resistance.
	Polyamide added to the tooth side of the belt reduces the coefficient of friction as the belt meshes with the pulley teeth. This yields smoother tooth engagement and offers lower application noise. A lower coefficient of friction can also extend wear resistance when tooth side contacts with slider bed in conveying applications and as a side effect lower energy consumption results. Polyamide on the conveying or reverse side of a timing belt can reduce friction between the surface of the product conveyed and the surface of the belt.
Belts are available with covers of different materials to assist in product handling. Some cover materials are produced during our belt manufacturing process, while others are added in a secondary process. Covers are available in different hardness and thickness combinations.
	Belts are able to be punched for effective use on vacuum conveyors, mounting mechanical attachments, and product sizing applications. After covers are applied to the timing belt it can profile grind the cover to yield designs that include slots, grooves, contours, v-shapes and round shapes.
Added profiles welded to the belts are used in a wide array of applications including assembly, packaging, filling and automation for precise indexing, sequencing and synchronous movements, separating or actuating product movement down the conveyor or processing line.
Imperial pitch belts are designed with a trapezoidal tooth and a 40° tooth angle. Imperial pitch belts are typically used in general conveying and linear movement applications. Metric T pitch belts are designed with a trapezoidal tooth form where the teeth are shaped with a 40° angle. Metric T belts are an excellent choice for general conveying applications. Metric AT pitches are designed with a trapezoidal tooth form where the teeth are shaped with a 50° angle. The AT series provides design enhancements beyond the metric T series to yield a higher load-carrying capacity. This is the right choice for applications requiring minimal backlash.

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Special Structured Covers for SPEN-FLEX PU timing belts
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Timing belts are no longer used only for driving machinery they are now an integral part of many very sophisticated production processes in a diverse range of industries. Timing belts are frequently used for synchronised conveying applications or to manipulate products into the correct position. The characteristics of a belt can be significantly changed by the addition of one of a number of secondary materials to the back of the belt and engineered for specific applications. A special process now allows us to apply virtually any conventional conveyor belt surface to a timing belt. Some, but not all such backings are featured below and we would welcome the opportunity to discuss how we might design a belt to solve your conveying / drive problem.
Additional wear resistance Covers that provide longer belt life in applications where abrasion can occur between the product conveyed and the belt conveying surface.
¤ Smooth top surface	¤ Natural rubber	¤ Textile structure	¤ Rough textile structure
Compressibility Closed and open cell foams and sponges in various thicknesses are used to squeeze, cradle and cushion products where design integrity and fragile materials require extra care. Actual density used will be based on application need.
¤ Closed cell foam	¤ Soft sponge
Food-grade covers Covers added that offer good resistance to oils, acids and other conditions typically found in moving food related products.
¤ Smooth surface	¤ Waffle	¤ Quadrangular	¤ Sawtooth
¤ Pimple top	¤ Cone top	¤ Herringbone
Good release Covers that allow easy product release whether hot or sticky.
¤ Ultra Glossy	¤ Textile Structure
Heat resistant Covers that allow hot products to be conveyed without effect on the thermoplastic urethane base belt.
¤ Non-woven fleece	¤ Isolating rubber
High friction Covers grab, feed or move the product on horizontal or inclined conveyors.
¤ Quadrangular	¤ Orb structure	¤ Longitudinal rib	¤ Jink wave
¤ Grip structure	¤ Rough top
Low friction Covers that allow the conveying side to slip under accumulated load conditions.
¤ Smooth, non-adhesive	¤ Fabric surface
Shock absorption Covers that absorb shock when dropping products from one level to the next.
¤ Thick rubber	¤ Closed cell foam	¤ Soft sponge

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Film Wrapper "Tear Strip" Belts
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Film Wrapping machines used in the Tea, Coffee, Tobacco, Pharmaceutical and Confectionery industries use a standard belt:-
Please contact us far a quotation

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