QD Bushings

SD Type QD Bushings with Inch Size Bore

SD Type QD style bushings are used in an extensively wide range of applications and are supplied with a broad range of bore sizes. We offer a full line of in-stock high-quality precision QD bushings that are manufactured to be extremely durable and high strength. What sets these E bushings apart from the rest is the strict quality control process and high-quality material. This makes it to that you will always get a premium consistent product when you order from us! We strive to provide the utmost customer care and value for your money making sure you’re a happy customer.

As one of the QD bushings manufacturers, suppliers, and exporters of mechanical products, We offer QD bushings and many other products.Please get in touch with us for details.

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SD Type QD Bushings with Inch Size Bore

SD Type QD style bushings are used in an extensively wide range of applications and are supplied with a broad range of bore sizes. We offer a full line of in-stock high-quality precision QD bushings that are manufactured to be extremely durable and high strength. The strict quality control process and high-quality material set these E bushings apart from the rest.

QD bushings feature a flange on the outside diameter that mounts to a pulley or sprocket and provides more accurate positioning of the bushing in the bore.

This makes it to that you will always get a premium, consistent product when you order from us! We strive to provide the utmost customer care and value for your money, making sure you’re a happy customer.

QD-bushing-product-5 QD-bushing-product-5-2

SD Type QD Bushing with Inch-Size Bore Specification:

ID Bore Keyseat
SDx1/2
SDx1/2KS
1/2in Stocked with No Keyseat, 1/8in x 1/16in Available by Special Order
SDx9/16 9/16in 1/8in x 1/16in
SDx5/8 5/8in 3/16in x 3/32in
SDx11/16 11/16in 3/16in x 3/32in
SDx3/4 3/4in 3/16in x 3/32in
SDx13/16 13/16in 3/16in x 3/32in
SDx7/8 7/8in 3/16in x 3/32in
SDx15/16 15/16in 1/4in x 1/8in
SDx1 1in 1/4in x 1/8in
SDx1-1/16 1-1/16in 1/4in x 1/8in
SDx1-1/8 1-1/8in 1/4in x 1/8in
SDx1-3/16 1-3/16in 1/4in x 1/8in
SDx1-1/4 1-1/4in 1/4in x 1/8in
SDx1-5/16 1-5/16in 5/16in x 5/32in
SDx1-3/8 1-3/8in 5/16in x 5/32in
SDx1-7/16 1-7/16in 3/8in x 3/16in
SDx1-1/2 1-1/2in 3/8in x 3/16in
SDx1-9/16 1-9/16in 3/8in x 3/16in
SDx1-5/8 1-5/8in 3/8in x 3/16in
SDx1-11/16 1-11/16in 3/8in x 1/8in, Shallow Keyseat
SDx1-3/4 1-3/4in 3/8in x 1/8in, Shallow Keyseat
SDx1-13/16 1-13/16in 1/2in x 1/8in, Shallow Keyseat
SDx1-7/8 1-7/8in 1/2in x 1/16in, Shallow Keyseat
SDx1-15/16 1-15/16in 1/2in x 1/16in, Shallow Keyseat
SDx2 2in No Keyseat

*Key Stock included with shallow keyseat Sizes Only

Applications of QD Bushings:

QD bushings are utilized throughout the industrial power transmission and agricultural industry for various sprockets, sheaves, pulleys, and synchronized drives. They are designed for easy installation and uninstallation; they are also referred to as quick-disconnect bushings. QD bushings can help conventional mounting with the flange outboard and reverse mounting to where the flange is inboard and utilize a single split that extends through the entire bushing length. Our QD bushings interchange with other brands and are made from high-grade steel precision machined for perfect application fitment.

QD Style Flanged Bushings:

QD bushing is a bushing used on sprockets and pulleys to provide exceptional holding power. These bushings are made of high-quality steel and feature a split on one side. They are easy to install and remove and come in a variety of sizes.

These bushings have a flange on the outside diameter, suitable for sprockets or pulleys, and they are usually split by the flange and taper to make installation easier and increase cap screw retention. This makes them ideal for use in a wide variety of applications.

The flanges of these bushings are not as thick as standard sprocket or pulley bushings, which may make them less effective in providing clamping force on the shaft. However, they are still a good choice for some applications and are available in many different apertures.

Installation and Removal of QD Bushings:

Standard Mounting

1. Be sure that the tapered cone surfaces on the bushing and inside of the driven product are clean and free of oil or anti-seize lubricants.

2. Slide the QD bushing on the shaft, flange the end first, then assemble the key.

3. Position the QD bushing on the shaft. Tighten the set screw over the key (hand tight) with a standard Allen wrench. Do not use excessive force.

4. Slide the large end of the sprocket or other part taper bore into position over the cone, aligning drilled bolt holes in the sprocket or other part with tapered holes into the flange of the bushing. Then assemble the pull-up bolts and lock washers.

5. Tighten pull-up bolts alternatively and evenly to the tightness indicated in the torque table below. Do not use extensions on the wrench handles. There should now be a gap between the face of the sprocket or other part hub and the flange of the QD bushing to ensure a good cone grip and press fit. Caution: this gap must not be closed.

Dismounting

1. Remove all pull-up bolts and screw them into tapped holes in the pocket or another part against the flange of the QD bushing to break the cone grip.

2. Loosen the set screw and slide the QD bushing from the shaft.

 

We are one of china’s best qd bushing manufacturers. We can offer a wide variety of qd bushing and different qd bushing dimensions.We also can provide some qd bushing size charts and qd bushing torque specs. We have exported our products to clients around the world and earned a good reputation because of our superior product quality and after-sales service.

We warmly welcome customers both at home and abroad to contact us to negotiate business, exchange information, and cooperate with us!

Applications of QD Bushings

QD Bushings feature a split tapered flange with the split central to the flange and taper. They are used on sprockets, sheaves, and pulleys where more clamping force is required over standard bored-to-size bushings. Bushing products are widely used in compressors, fans, air compressors, pumps, petroleum equipment, conveyors, grain machinery, agricultural machinery, air conditioning, and ventilation equipment.