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	For more information about a specific product line of our variable speed pulleys, click on the icons below: Click on the "Top" icon to return to the top of this page. Click on the catalog cover to the left and download a full PDF version of our catalog. 1.3 meg Adobe Acrobat PDF file. About 5 minutes to download with a 56k modem. Click here if you need Adobe Acrobat Reader.
	The "A" Series pulleys are Adjustable Center Distance Drive type pulleys with a 5-30 horsepower capacity range. The "MA" Series pulleys are Fixed Center Distance Drive pulleys with a 5-125 horsepower capacity range. Both series use a unique patented Asymmetric Belt which allows the maintainance of belt alignment with single face movement pulleys on V-V drives. The automatic pulleys contain Hi-Lo's torque sensing mechanism to control belt tension with load requirement.
	Becker: The premier name in state of the art variable speed drive technology pioneered unconventional solutions in the development of asymmetrical variable speed drives. The result was high power transfer and low belt wear which no other comparable system can achieve.
	The DCV Series pulleys are Adjustable Center Distance Drive type pulleys using Standard V Belts. The horsepower range is fractional to 7½ HP at 1750 RPM. They have double pulley face movement to maintain belt alignment on V-V drives and contain Hi-Lo's torque sensing mechanism to control belt tension with load requirement.
	The DCW Series pulleys are Adjustable Center Distance Drive type pulleys using Variable Speed Belts. The horsepower range is fractional to 30 HP at 1750 RPM. They have double pulley face movement to maintain belt alignment on V-V drives and contain Hi-Lo's torque sensing mechanism to control belt tension with load requirement.
	The MCV and MCW Series pulleys are Fixed Center Distance Drive type pulleys. The MCV pulleys use standard V-Belts and have horsepower ratings from fractional to 5 HP. The MCW pulleys use Variable Speed Belts and have horsepower ratings from 1-7½ HP. The automatic pulleys contain Hi-Lo's torque sensing mechanism to control belt tension with load requirement.
	The TBR Series of pulleys are Adjustable Center Distance Drive pulleys using standard V-Belts. The horsepower range is fractional to 5 HP at 1750 RPM. They have single face movement to provide greater economy on longer center distance V-V drives where absolute belt alignment is not critical. Their through bore construction allows mounting from either end. Hi-Lo's torque sensing mechanism controls belt tension with load requirement.
	The Hi-Ratio Series of pulleys are compound ratio type pulleys using Standard V Belts. The horsepower range is fractional to 1 HP with speed variation ratios up to 7:1.
	Hi-Lo's VARI-Mod Case–A complete variable speed drive system which can be combined with off-the-shelf components to build variable speed drives of all types and arrangements.
	Variable Speed Belt and Asymmetric Belt sheaves are made of close grained cast iron, accurately machined and balanced for true running performance. They use "QD" bushings to provide a wide range of standard bore sizes and tight bore-shaft fits with ease-of-installation.
	Hi-Lo Belts are selected for optimum performance on variable speed pulley drives. They are dimensionally stable, crush resistant, oil and head resistant and static dissapating.
	Hi-Lo Motor Bases for Adjustable Center Distance Drives have been designed to accomodate NEMA motor frame sizes 48 through 286T. They are of rigid steel construction with lube-free bushings in the motor mount plates for easy adjustment and greater wearability. Produced by Triangle Park Creative, Minneapolis, MN