Poly-V pulleys

Details Poly-V pulleys Poly-V pulleys

1982-07-21

1985-05-21

Staab, Lawrence J.

Endless belt power transmission systems or components

Friction drive pulley or guide roll

Including plural, coaxial, circumferential belt-receiving...

29159R, 474168, F16H 5549

Patent

active

045183740

ABSTRACT:
A sheet metal poly-V pulley formed from a cup-shaped blank having a cylindrical wall with inner and outer peripheral surfaces, the pulley comprising: at least a portion of the cylindrical wall being thickened with material from the blank, the thickened portion having a plurality of parallel V-shape annular grooves in the outer peripheral surface, separated by parallel, annular partition walls, the alternating annular grooves and partition walls being adapted for receiving poly-V belts; the inner peripheral surface of the thickened portion having a plurality of small V-shape annular grooves arranged parallel to one another and centrally aligned with the partition walls of the outer peripheral surface; and, annular flanges at opposite ends of the thickened portion projecting radially beyond the partition walls, the flanges having stepped, annular cut-out portions to prevent contact between the pulley and lateral edges of poly-V belts.

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