Page 24 of Torque Transmissions 2008 by Torque Transmission

pulleys 22 pulleys torque transmission offers pulleys with superior performance and economical designs each pulley is detailed on the following pages applications include · packaging equipment · automated garage door openers · medical diagnostic machines · exercise equipment · printing devices · automation · water pumps high quality construction pulleys are constructed of glass reinforced nylon and metal to provide durability at a reasonable cost special sizes samples samples of standard pulleys are available for test purposes and prototypes standard tolerances standard bore sizes for torque transmission pulleys nominal bore size 1/4 5/16 3/8 1/2 5/8 3/4 bore tolerances .2505 2515 .313 314 .3755 3765 .5005 5015 .6255 6265 .7505 7515 standard keyways and setscrews for pulleys bore keyway 5/16 3/32 3/8 1/8 1/2 1/8 5/8 3/16 3/4 3/16 all 8mm pulleys setscrew 10-24 10-24 10-24 10-24 10-24 1/4-20 other keyways are available upon request other bore sizes and metric bore sizes available timing belt pulley tolerances upon request at an additional surcharge we maintain a close quality standard by all setscrews are knurled cup point please specify holding 005 inch on our pulleys and maintaining a if another size or type of setscrew is required concentricity of .005 tir maximum metric setscrews also available all setscrews are placed directly over the keyway if two setscrews are ordered the second setscrew is 90 degrees clockwise from the first one unless otherwise specified 1-800-544-6642 www.torquetrans.com

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