Bearing puller 3-arm GEKO G30301, capacity 12–38 mm

Three-arm bearing puller GEKO G30301 with a 12–38 mm capacity is a mechanical extraction tool designed to remove bearings, gears and pulleys from shafts and housings. The puller combines adjustable three-arm grips with a central press screw to apply controlled axial force. It is suitable for automotive repair, machine maintenance and general workshop tasks that require removal of press‑fit components within the stated diameter range.

Advantages

The three-arm design provides even gripping force around the outer diameter of the part, reducing the risk of slippage and damage. Adjustable arms accommodate a range of external diameters from 12 to 38 mm, allowing one tool to cover multiple sizes. The central press screw enables precise, controlled extraction and simple operation with common hand tools or a socket. Robust construction ensures stable performance during repeated use in workshop environments.

Suitable for

• Removing bearings from shafts and housings
• Extracting gears, pulleys and sprockets
• Automotive repair and drivetrain maintenance
• General mechanical and industrial maintenance

Key specifications

• Arm configuration: three-arm puller for balanced grip
• Capacity (outer diameter): 12–38 mm
• Operation: central press screw for axial extraction
• Adjustability: arms adjustable to fit specified diameter range
• Material and finish: steel construction suitable for workshop use

How to use

Select and position the three arms so their hooks engage securely behind the outer edge of the part to be removed. Tighten the retaining bolts to fix the arm positions if applicable, align the central press screw with the shaft axis, and rotate the screw gradually to apply axial force. Continue turning the screw until the bearing, gear or pulley is freed from the shaft. Reverse the procedure to disassemble the puller from the removed part and inspect both tool and component for wear.

Usage recommendations

Before use, ensure the puller arms are correctly seated and the central screw is aligned with the shaft to prevent uneven loading. Use appropriate personal protective equipment and apply steady, controlled force; for seized or rusted parts consider applying penetrating lubricant and gradual incremental pressure rather than excessive torque.