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Stenco Pulleys

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The Stenco Pulleys have a rectangular groove cut on the shaft side of the hub. This groove has a grub screw that runs from the OD of the hub to above the key way groove.  The shaft has a matching groove so that when both of them oppose they form a square which accepts the key steel. The grub screw forces down on the key steel and stops it from sliding out. When the shaft rotates, force is exerted onto the key steel moving the pulley in unison with the shaft. The Grub Screw is supplied with the hub.

Some intresting info on Stenco Pulleys

A pulley is a wheel on an axle or shaft that is designed to support movement and change of direction of a cable or belt along its circumference.  Pulleys are used in a variety of ways to lift loads, apply forces, and to transmit power. In nautical contexts, the assembly of wheel, axle, and supporting shell is referred to as a “block.”

A pulley may also be called a sheave or drum and may have a groove between two flanges around its circumference. The drive element of a pulley system can be a rope, cable, belt, or chain that runs over the pulley inside the groove.

Stenco Pully:  4.0″ pulley 3/4″ bore

Item Number: 1ax4.00

Stenco Pully:  4.5″ pulley 3/4″ bore

Item Number: 1ax4.50

Stenco Pully:   5.0″ pulley 3/4″ bore

Item Number: 1ax5.00

Additional information


4.0, 4.5, 5.0


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