Ball Bearing Removal


If the ball bearing is not on a shaft, an internal extractor must be used. If the ball bearing is accessible from the outside, a separator puller or a 2 or 3-jaw external puller can be used.


If an internal extractor or a 2- or 3-jaw external extractor cannot be used, the only possibility is to grip directly into the bearing.

Non-destructive extraction using the 70 series does not damage the exterior of the ball bearing. No boring chips are produced.

The KUKKO series 69 initially drills into the damaged ball bearing. During removal, the pulling force is evenly distributed on the inner and outer rings.

Notes on ball bearing extraction

Many ball bearings are secured with retainer rings. These have to be detached before pulling. With the KUKKO series 728 and 729, we offer a large selection Circlip pliers.

When driving ball bearings into bushings or hammering them onto shafts, a uniform load is absolutely necessary. Otherwise, the ball bearing may be damaged. This can be safely accomplished using our ball bearing fitting tools from the 71 series.

TIP! For an especially reliable fit of the ball bearing onto the shaft, we recommend our inductive ball bearing heater, T-AW. The ball bearing is heated, mounted on the shaft, and as it cools, is firmly pressed to the shaft.

Safety information

Carry out regular checks of the condition of the tool and replace damaged or worn parts.
Always keep the pressure screw and cross-beam threads clean and well-oiled.
Before use, make sure you know how to properly operate the pulling tool, in compliance with the necessary safety precautions.
If you are even slightly uncertain about one of the points mentioned above, you should request clarification on tool operation.
Make sure the pulling tool is in perfect condition before use.
Verify that the tool is attached correctly and monitor the force used during the removal process.
Never exceed the stated load values for the tool, and check the application of the pulling force by using a torque wrench for mechanical pulling tools and a pressure gauge for pump-operated hydraulic pulling tools.
Wear suitable personal protective clothing. Always wear protective goggles.
Protect yourself with a protective blanket against jerky movements that are always possible with pulling tools and the part being pulled when doing extraction jobs.
Should overload, stiffness, etc., occur, stop the removal process and use a larger version of the corresponding series to complete the job.
Do not use any electrical or pneumatic servo screwdrivers or impact screwdrivers to operate pulling tools.
Do not use extensions to increase the transmitted torque.
Do not make any modifications to the products.
Because the strength properties of steel change under the influence of heat, pulling tools may not be heated when the parts to be pulled are heated.


For almost 100 years, we have produced pulling tools for users in craft trades and industry. We are an independent, owner-operated family company, now in the fourth generation, with above-average returns, at 100% equity financing and are one of the leading producers of pulling tools of all kinds.

©2019 Kleinbongartz und Kaiser oHG. All rights reserved. Unauthorized copying or distribution without written permission is strictly prohibited. KUKKO and WILBÄR are registered trademarks of Kleinbongartz & Kaiser oHG in Germany and other countries. TURNUS and WINKELGREIF are registered trademarks of Eduard Gottfried Ferne GmbH & Co. KG in Germany and other countries.