Method and apparatus for making a sheet metal pulley

Details Method and apparatus for making a sheet metal pulley Method and apparatus for making a sheet metal pulley

B - Operations, Transporting

21

K

26/174

B21K 1/42 (2006.01)

Patent

CA 1041748

METHOD AND APPARATUS FOR MAKING A SHEET METAL PULLEY Abstract of the Disclosure A method and apparatus for making a sheet metal pulley having a pair of stamped sheet metal cups with telescopically interfitted side wall portions and integral flanges forming in cooperation with the flanges of rings received on the cups a plurality of V-shaped grooves. A device which engages a side wall portion of at least one of the cups locates and produces pulley mounting holes concentric with the grooves of the pulley and extending through the bottom walls of the cups. The mounting holes are produced prior to a ring being fixed to such side wall portion by a plurality of circumferentially equally spaced spot welds in such ring and side wall portion. -i-

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