American Standard Sprockets with Qd Bushings 35 35-1 35-2 41 40 40-2 40-3 50 50-2 50-3 60 60-2 60-3 80 80-2 80-3 100 100-2 100-3 120 140 160 200

Benefits of using QD bushings with American Standard sprockets

Easy and quick installation and removal (quick release): This is the most important benefit. QD bushings feature a tapered bore and a split design (usually split through flange and taper). Once the bolts are tightened, the bushing is pressed tightly against the shaft, creating a secure grip. For removal, the bushing can be easily pushed off the shaft by simply loosening the bolts or, in some cases, using the bolts as a jackscrew in the threaded hole. This "quick release" feature significantly reduces downtime for maintenance, repairs, or component replacement.

Excellent clamping force and secure fit: The tapered design of the QD bushing creates a strong wedging action when pulled into the matching tapered bore of the sprocket. This creates a very strong and secure connection between the sprocket and the shaft, providing superior clamping force compared to traditional keyway-only mounts. This strong grip effectively prevents slippage even under high torque loads.

Versatility and Interchangeability:

Multiple Bore Diameters: A single sprocket can accommodate a variety of QD bushing sizes, allowing it to be used with different diameter shafts by simply changing the bushing. This reduces the need to stock spare sprockets.

Standardized Design: QD bushings and sprockets are manufactured to industry standards, making them interchangeable between different manufacturers.

Flexible Mounting Options: Many QD bushings are available in both "forward" and "reverse" configurations, providing flexibility to meet specific mounting needs and optimize shaft space.

Reduces Shaft Wear: Because the bushing creates an even circumferential grip around the shaft, it distributes the load more widely than a simple keyway and set screw. This reduces localized stress concentrations and wear on the shaft itself.

Low Maintenance Cost: While the initial cost may be slightly higher than a simple bored sprocket, the QD bushing system offers significant savings in maintenance time and labor due to quick installation/removal, making it more cost-effective over the life of the machinery.

Precise Alignment: Tapered fit helps ensure proper alignment of the sprocket on the shaft, which is critical for smooth operation and extended sprocket and chain life.