Reducing bushing Posi-Lok®

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Posi-Lok (PSL) keyless shaft bushings are locking devices that provide a secure shaft-to-hub connection. Most models feature socket-head cap screws for easy tightening and distribution of pressure over the full length of the connection to reduce fretting, corrosion, and backlash. Posi-Lok bushings are ideal for positioning and locking shaft components in a system, and eliminate the need for keyways, tapers, and tapped holes, which can weaken or cause excess wear to shaft couplings. Our Posi-Lok bushings can save valuable time and resources in many production processes. The Posi-Lok bushings offer high torque transmission and an enhanced design that features excellent axial and radial concentricity. We offer a full selection of shaft-mount models and materials to fit a wide variety of applications. Posi-Lok Bushings Provide High Torque Transmission and Reliable Performance Posi-Lok keyless shaft bushings utilize tapers that form a mechanical locking wedge as the actuation screws are tightened, pressing the inner sleeve against the shaft and outer sleeve against the hub. The resulting connection transmits high levels of torque and resists axial forces. All Posi-Lok bushings slide easily onto shafts and securely lock hubs, pulleys, and other mounted components into position along the shaft. To install, simply slide the Posi-Lok over the shaft, slide the hub (sprocket, pulley, etc.) onto the Posi-Lok body, and tighten the actuation screws with a torque wrench. See specific model information for complete details.