Bearing puller 3-arm Topex 3" model 37D405

Bearing puller 3-arm Topex 3" model 37D405 is a mechanical extraction tool designed to remove bearings, gears and pulleys from shafts with a 3-inch (approx. 76 mm) reach. The three equally spaced arms provide a balanced grip on the component, allowing centered and controlled extraction while minimizing sideways forces on the shaft and housing. The tool is intended for maintenance, repair and workshop environments where steady, even pulling action is required.

Advantages

The three-arm configuration ensures stable engagement around the circumference of the part, reducing the risk of tilting or slipping during removal. A 3-inch reach allows access to moderately recessed components without needing additional extensions. The puller is compatible with a range of parts such as bearings, gears and pulleys and is suitable for repeated use in workshop or maintenance settings. The design facilitates controlled force application for safer, more predictable extractions compared with improvised methods.

Suitable for

• Removing bearings from shafts in automotive and industrial applications
• Extracting gears and small pulleys during disassembly
• Maintenance and repair tasks in workshops and service stations
• Tasks requiring centered, even pulling force to avoid part damage

Key specifications

• Arm configuration: three-arm puller for balanced grip
• Reach: approximately 3 inches (≈76 mm) from the puller center to arm tips
• Suitable part types: bearings, gears, pulleys with compatible inner or outer surfaces for claw engagement
• Operation: mechanical screw-driven central forcing bolt for controlled extraction
• Typical use environment: workshop, garage, maintenance shop

How to use

Position the puller so the three arms evenly engage around the component to be removed, ensuring the claws sit securely behind the part's lip or shoulder. Center the forcing bolt on the shaft end or the component's axis and turn the central screw to apply steady axial force. Continue turning until the component moves free; if resistance is excessive, check alignment and re-seat the arms to avoid slipping. Use appropriate lubrication on the forcing screw if needed to maintain smooth operation and avoid sudden torque peaks.

Usage recommendations

Inspect the part and surrounding area before use to ensure the arms can engage securely. Wear eye protection and gloves when extracting high-tension or rusted parts. Do not apply impact blows to the forcing screw; use steady, controlled rotation. If the part is heavily corroded or stuck, consider penetrating lubricant and gradual incremental force rather than excessive torque.