Keyless bushing

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Keyless shaft bushings provide secure connections between the shaft and hub while reducing stress or wear to mounted components. Using surface pressure to maintain their position, they eliminate the need for keyways, tapers, and tapped holes, which can cause component stress and wear due to fretting, corrosion, and backlash. View Quote. Request Quote. Click image to enlarge. A keyless bushing does not rely on the key to transmit torque, but instead utilizes the entire circumference of the shaft for more efficient performance with no backlash. Surface pressure is distributed evenly over the full length of the connection, reducing micro-movements which can cause fretting.

Keyless bushing

Also known as Trantorque bushings, these tighten with a twist of the collar nut— no screws needed. As you tighten the collar nut, the inner sleeve contracts onto the shaft and the outer sleeve expands to hold your sprocket, pulley, or gear. Stainless steel bushings are corrosion resistant for use in harsh environments. For technical drawings and 3-D models, click on a part number. Insert these bushings into the bore of your sprocket for flush or recessed mounting. They handle shock loads and have higher torque ratings than self-centering bushings. When you tighten the included clamping screws, the bushing's inner sleeve contracts onto the shaft and the outer sleeve expands to hold your sprocket, pulley, or gear. They can be mounted on shafts with or without keyways. A mounting flange prevents movement during tightening, so it's easy to center these bushings in your sprocket. They are also good for shock loads. When you tighten the included screws, the bushing's inner sleeve contracts onto the shaft and the outer sleeve expands to hold your sprocket, pulley, or gear. A toothed slot lets these bushings contract for insertion into the bore of your sprocket or pulley and then expand for a snug fit. Made of spring steel, they flex under stress and shock and can handle oscillating or slow rotational motion.

Overhung load capacity is the amount of downward force that a coupling can withstand from a motor or other object that it is supporting.

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ETP keyless bushings are shaft locking devices used to create precise shaft-to-hub connections in high-demanding applications. They are ideal for positioning and locking shaft components in a system, and provide the best alternative to keyways and tapers, which can weaken or cause excess wear to shaft couplings. Keyless shaft bushings enable fast, precision mounting of shaft components, providing solutions in the following situations:. For more information on our ultra-low runout, ETP keyless shaft bushings, contact us or find your local sales representative. Zero-Max ETP keyless locking devices are designed to solve specific application requirements, such as phasing and timing to synchronize machine components.

Keyless bushing

View Quote. Request Quote. Click image to enlarge. 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.

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Overhung Load Cap. They handle shock loads and have higher torque ratings than self-centering bushings. When you tighten the included screws, the bushing's inner sleeve contracts onto the shaft and the outer sleeve expands to hold your sprocket, pulley, or gear. Quick-Grip Screw-Clamp Bushings. The flangeless design can be recessed within the hub which saves space and allows for easy installation and disassembly. Shaft Mount Type. Using surface pressure to maintain their position, they eliminate the need for keyways, tapers, and tapped holes, which can cause component stress and wear due to fretting, corrosion, and backlash. The PSL-D series bushings have a single taper, offering a lower contact pressure at the hub, allowing smaller OD hubs to be used, saving on the moment of inertia and weight. For Shaft Dia. OD Overall Wd. Flush-Mount Screw-Clamp Bushings. The PSL-K series bushings offer small ID and OD dimensions to allow a smaller diameter hub to be mounted, saving on the moment of inertia, cost, and weight. Screw Clamp. Torque, in. Shaft Type.

Keyless shaft bushings provide secure connections between the shaft and hub while reducing stress or wear to mounted components. Using surface pressure to maintain their position, they eliminate the need for keyways, tapers, and tapped holes, which can cause component stress and wear due to fretting, corrosion, and backlash. View Quote.

They can be tightened and repositioned with minimal downtime and without causing additional wear on the shaft or mounted components. Reduce Stress and Wear on Mounted Components with Keyless Bushings Keyless bushings make mounting components an easier, faster, and more precise process. System of Measurement. Speed, rpm Max. All you need to do is mount, set in position, and lock it with a torque wrench. As you tighten the collar nut, the inner sleeve contracts onto the shaft and the outer sleeve expands to hold your sprocket, pulley, or gear. For technical drawings and 3-D models, click on a part number. This feature makes them more precise and easier to use. Often used to hang motors from conveyor belts and other driven equipment, or to connect long sections of shafts, these couplings eliminate the need for support brackets. Email Us From. The flangeless design can be recessed within the hub which saves space and allows for easy installation and disassembly. See specific model information for complete details. Self-Adjusting Spring Bushings. A toothed slot lets these bushings contract for insertion into the bore of your sprocket or pulley and then expand for a snug fit. Log in.