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QD Bushings

The QD design provides for both conventional (flange outboard) and reverses (flange inboard) mounting configurations. The original sheave and pulley mounting system developed to facilitate installation and replacement of components.

The main difference in the two is that the QD style bushing has a flange around the outside diameter, while the taper lock bushing has straight sides on the OD which is meant to mount flush. Many people refer to both types as a “taper lock” because they both use the tapered wedging action to lock to the shaft. The taper bushing, with its straight sides, uses a set screw to drive the bushing into the bore of the component being installed (sheave, sprocket, etc.). Be careful when installing these screws. The holes with threads on the bushing are for removal only. Also be aware that the appearance of a flange on the outside of the bushing doesn’t necessarily mean it’s a QD style. Split Taper bushing also has a flange, and the two are not interchangeable. The QD style has a split that continues through the flange.

The Steel QD (Quick Disconnect) Type bushing offers flexible and easy installation while providing exceptional holding power. QD Bushings are used thought out the industry offering convenience and design flexibility. They are precision machined of quality Steel and are installed by tightening several cap screws. This draws the bushing into the taper bore of the product which compresses the bore of the bushing. QD bushings are easily removed by using the cap screws as jack-screws.

Double drilled holes are furnished in QD Bushings permitting mounting of product in the conventional or reverse positions. This allows cap screws to be installed through product hub or bushing flanges whichever is most convenient. Significant benefits in installation, cap screws are always inserted from the outside where they are easily accessible.

  • B Split & Taper Bushing

    Split and Taper Bushings are used to carry torque and mount pulleys, sprockets and sheaves on shafts. They have a double split barrel to provide flexibility and a strong hold on shafts. The barrel is keyed to the shaft prevent rotation. They are also...

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  • E Bushing

    A QD bushing is the original sheave and pulley mounting system developed to facilitate and replace components. The QD (Quick Disconnect) design provides for both conventional and reverse flange mounting configurations. The QD bushing has a flange around...

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  • F Bushing

    F Bushing

    QD or “quickly detachable” bushings are split tapered flanged bushings with the split running through the flange and taper. These QD bushings provide excellent clamping force on the shaft. QD bushings are utilized on sprockets, sheaves and...

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  • H Split & Taper Bushing

    Split and taper bushings are utilized on sheaves, pulleys, sprockets and gear belt pulleys. The split and tapered bushing alleviates the need to have a component bored to size, ideally lowering on hand requirements and allowing for changes in shaft size...

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  • JA Bushing

    JA Bushing

    Bushings, sometimes called plain bearings, sleeve bearings, or linear sleeve bearings, are installed between a rotating drive shaft and a housing to help secure the shaft in place and reduce vibration to extend the working life of hubs and shafts...

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  • P1 Split & Taper Bushing

    Use a tapered or QD bushing from Grainger with sheaves, pulleys, sprockets and many other power transmission applications. Flanged quick-disconnect bushings feature a completely split design to help provide easy installation and disassembly. A tapered...

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  • SD Bushing

    What sets this bushing apart from others is the high-quality steel construction, and strict quality control procedure to ensure that you are getting a product that is consistent and precise. The screw connections on these bushings easily mate...

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  • SDS Bushing

    SDS bushings are designed to transmit the rated torque capacity listed in the table below when the cap screws are tightened as indicated. The bushings are stocked in all popular bore sizes, including metric bores, within the bore range for a particular...

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  • SF Bushing

    SF Bushing

    A tapered bushing with straight edges uses an internal screw to help drive the bushing into the shaft, while a split taper has a flange and a key on the bushing to help provide more drive. A QD Bushing is the original sheave...

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  • SH Bushing

    SH Bushing

    SH Quick detachable (QD) bushings have a split along one side that eases fitting on shafts of varying diameter. Tapered bushings have a keyway and are installed by pressing the bushing into the bore. Manufactured to ANSI standards our SH bushings are...

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  • SK Bushing

    SK Bushing

    SK Bushings Quick-Disconnect (QD) Bushings are bushings to make the same sprocket or pulley compatible with multiple shaft diameters. They fit QD sprockets and pulleys of the same bushing style. As you tighten the included cap screws, the bushing...

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