Bearing puller three-arm Proline 150×110 mm model 29731

The Proline Bearing puller three-arm 150×110 mm model 29731 is a manual extraction tool designed for removing bearings, gears and pulleys from shafts without causing damage to surrounding components. Its three-arm configuration provides balanced grip and even force distribution, reducing the risk of slippage and part deformation during removal. The tool is intended for use in automotive repair, general workshop maintenance and light industrial service tasks where reliable, controlled extraction is required.

Advantages

The three-arm design ensures stable engagement around the component, delivering uniform pulling force and minimizing bending or distortion. Constructed from hardened steel components and a robust central forcing screw, the puller is built to withstand repeated use under typical workshop loads. Its 150×110 mm arm reach accommodates a range of medium-sized bearings and pulleys while allowing access in confined spaces. The tool’s simple mechanical operation requires no power source and supports controlled, incremental extraction for delicate assemblies.

Suitable for

• Removing bearings from shafts in passenger cars and light commercial vehicles
• Extracting gears, pulleys and sprockets in engine and transmission maintenance
• Workshop and industrial maintenance tasks involving medium-sized rotary components
• Situations requiring even, centered pulling force to avoid component damage

Key specifications

• Arm configuration: three-arm design for even force distribution
• Reach / capacity: designed for up to approximately 150 mm maximum span with 110 mm inner reach (arm dimensions indicate usable spread)
• Construction: hardened steel arms and central forcing screw for durability
• Operation: manual mechanical extraction using a central screw
• Compatibility: suitable for various bearing, gear and pulley types within the specified dimensions

How to use

Select the correct arm orientation and adjust the arms so the puller securely grips the component behind its seating surface. Position the central forcing screw on the shaft end and ensure the arms are evenly seated around the part to center the load. Turn the central screw gradually using the appropriate wrench or socket, applying steady torque until the component releases. Throughout extraction, keep alignment straight and re-check arm engagement to prevent slippage or uneven loading.

Usage recommendations

Before use, inspect the arms and screw for wear or damage and clean contact surfaces. Use penetrating oil if parts are corroded or seized, and apply steady, controlled torque rather than sudden impacts. For stuck components, alternate between applying penetrating lubricant and incremental tightening of the forcing screw. Do not exceed reasonable manual torque limits; if a component will not release, consider heat, press, or hydraulic methods by trained personnel. Store the puller dry and lubricate the screw periodically to maintain smooth operation.