Vibrating wheel hub puller - GIF

**desbromilow** · Oct 8, 2022, 05:24 AM

Originally Posted by tonyfoale

Am I going blind? I do not see the source of the vibration, that would be the only interesting thing in that video.

based on the noise i figured the vibration is actually an air powered impact socket driver running on the puller screw.

**WorkerB** · Oct 8, 2022, 12:52 AM

Thank you so much Tony.
It makes sense now. Like a doughnut (or is that donut in the US) increasing in size. The hole gets enlarged too. Brilliant!!

**tonyfoale** · Oct 8, 2022, 01:06 AM

Originally Posted by WorkerB

Thank you so much Tony.
It makes sense now. Like a doughnut (or is that donut in the US) increasing in size. The hole gets enlarged too. Brilliant!!

Make mine a doughnut.

**hemmjo** · Oct 9, 2022, 04:03 AM

Originally Posted by Altair

Vibrating wheel hub puller.

As noted in a previous post, the vibrations were from the Pneumatic Impact Wrench being used to turn the tension screw on the puller. In this application, the hub assembly is able to twist in response to the wrench impacts. Any additional torque the impact might provide is lost by moving the entire spindle/hub/puller assembly.

The effect is similar to trying to drive a nail into a board that moves with every stoke. Most of the energy that should be driving the nail is used up moving the board instead. Just a fraction is used actually driving the nail.

A better way to remove a stuck hub, is to tension the puller with with just a normal wrench. In this situation you apply more torque than with the impact wrench. Then use a pneumatic HAMMER on the center screw of the puller to induce linear vibrations that will actually act in a manner to pull the hub from the shaft.

If you do much of this kind of work, you need a pneumatic hammer.