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Taper Bushings

3 products available

Taper bushings create a secure, precise fit between a shaft and a mounted component like a pulley, sprocket, or impeller. Also known as taper lock bushings, these components use a tapered barrel that contracts to clamp tightly onto the shaft, allowing for high torque transmission and easy installation or removal. They are fundamental parts in industrial power transmission and machinery assembly.

Compel offers a focused selection of industrial bushings for specific trade applications. Our range includes self-lubricating oil-impregnated copper bushings for maintenance-free operation, machined aluminum bushings for custom-fit repairs, and keyless taper bushings for timing pulley systems. We supply precise, reliable components to keep your machinery running correctly.

Select a Mounting Type: Taper Lock, QD, or Keyless

The mounting method is your first decision. Standard split taper bushings and QD bushings use a flanged, tapered design that clamps onto the shaft as bolts are tightened. They are common in power transmission and often feature a keyway for positive drive.

Keyless taper bushings provide an alternative interference fit without needing a keyway on the shaft. They are tightened to create high concentric pressure between the bushing, shaft, and component hub. This design is excellent for high-speed applications, precision timing, or when shafts are not keyed.

Match Material to Your Operating Environment

Material choice directly impacts performance and lifespan. Each material in our selection is suited for a different industrial need.

Aluminum Alloy is a lightweight option ideal for timing pulleys where minimizing rotational mass is important. It provides good strength and general corrosion resistance.

Machined Aluminum is used for application-specific parts requiring high precision and a guaranteed fit, such as custom vehicle components that eliminate play or vibration.

Powder Metallurgy Oil Copper is a self-lubricating material. The porous copper is impregnated with oil, providing continuous lubrication for the bearing surface. This makes it the correct choice for low-speed, high-load assemblies where ongoing maintenance is impractical.

Verify Sizing for Shaft and Component

Correct sizing is used for a secure assembly. First, confirm the bushing's inner diameter, or bore, matches your shaft's outer diameter. Our available bore sizes range from 5mm to 20mm.

Next, ensure the bushing is compatible with the component it will hold. For a timing pulley, this means matching the bushing to the pulley's hub design and ensuring it works with the specified belt profile (e.g., HTD 5M) and width. For other components, verify that the outer diameter and style of the bushing fit the component's bore.

Buying guide

Choosing Taper Bushings

When should I choose an oil-impregnated copper bushing over an aluminum one?
Select an oil-impregnated copper bushing for self-lubricating properties in low-speed, high-load applications where access for maintenance is limited. Choose aluminum for lightweight power transmission components like timing pulleys or for custom-machined parts where precision is key.
What is the main difference between a taper lock and a keyless bushing?
A taper lock bushing (or split taper bushing) uses a tapered barrel and a keyway to transmit torque, making it a common choice for sprockets and sheaves. A keyless bushing grips the shaft with uniform frictional pressure, providing zero backlash and high concentricity, which is ideal for precision timing systems.
How do I ensure I order the correct bore size for my shaft?
Use calipers to measure the outer diameter of your shaft accurately. The bushing's bore diameter must match this measurement exactly. An incorrect size will cause vibration, component slippage, and potential damage to the shaft or hub.
Are these industrial bushings compatible with any pulley?
No, the bushing must be designed to fit the hub of the specific component. For pulleys, the bushing's style (e.g., taper lock, QD, keyless) and external dimensions must match the pulley's machined bore. Always verify compatibility on the product datasheet.
Can I use a keyless pulley bushing for a non-pulley application?
It is possible if the bore and torque requirements match. Keyless bushings are designed to mount any hub-style component to a shaft, but you must ensure the clamping force is sufficient for your specific application's torque load.