Machine Design

Timing-Belt Pulleys

The A 6D16 Series 0.080 pitch aluminum MSL timing-belt pulleys for 0.25-in. belts are goldiridite aluminum alloy and come in 12 to 72 grooves.

They range in bore sizes from 0.125 to 0.250, with ODs from 0.286 to 1.813 in., and come in double or no-flange types. The pulleys use a special hub fastener consisting of two slots machined into the hub, one radially and one angularly, to create a transverse wedge that remains attached to the hub's solid portion on one side. The resulting cantilevered clamping section has a tapped hole to accept a cap screw which passes through a clearance hole in the hub's solid portion and into a threaded hole in the transverse wedge section. As the screw tightens, the cantilevered section clamps the shaft securely.

Stock Drive Products, 2101 Jericho Turnpike, Box 5416, New Hyde Park, NY 11042, (516) 328-3300,sdp-si.com

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