Wheels Manufacturing Bearing Extractor

This extractor is designed specifically for 6003, 6803, and 6903 cartridge bearings. It is not a universal tool, so ensure your hub or bottom bracket bearings match these sizes before purchasing.

Yes, you will need an Allen key to tighten the collet inside the bearing and a separate punch or drift to tap the extractor and bearing assembly out of the hub shell.

It is primarily designed for cartridge bearings found in hubs and some bottom brackets. As long as the bearing size matches the 6003, 6803, or 6903 specifications, it will function correctly, provided there is enough clearance to access the backside of the bearing.

When you tighten the Allen key, the collet expands outward, pressing firmly against the inner race of the bearing. This creates a secure, mechanical grip that allows you to drive the bearing out without the tool slipping or damaging the surrounding hub shell.

Generally, no. The process of extracting a bearing—especially press-fit types—often puts significant stress on the races and seals. It is standard practice to replace cartridge bearings with new ones once they have been removed.