Poly v-pulley

Details Poly v-pulley Poly v-pulley

F - Mech Eng,Light,Heat,Weapons

16

H

74/244, 113/69

F16H 55/44 (2006.01) B21D 51/26 (2006.01) B21D 53/26 (2006.01) B21H 1/04 (2006.01) B21H 5/02 (2006.01)

Patent

CA 1264967

169/167 ABSTRACT OF THE DISCLOSURE A poly-V pulley formed from a cup-shaped sheet metal blank by axially compressing the cylindrical portion while confined in dies to form a thickened cylindrical portion, with radially pressurized dies to prevent buckling or corrugating, and roll forming the thickened portion into the external poly-V grooves and the opposite internal surface with axially extending grooves of a convex and concave shape for maintaining the accuracy of shape and size of the poly-V grooves.

475809

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