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Discussion Starter #1
Anybody know where I could purchase a 9" pinion bearing driver for use with a hydraulic press? I cant seem to find ANYTHING! I'm sure I could just use temperature differential to get the bearing on or pay somebody to do it but this wont be my last gear change and it would be nice to have the proper tool.
 

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I have always used a hammer and a punch with the pinion supported properly. A little WD40 or other light oil helps the bearing press onto the pinion gear. Have done it countless times this way.
 

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Do you think DOM tubing with the proper ID and wall thickness would do the trick for you? That's what we use for pushing a lot of bearings at our business although not for 9'' pinions. Some of the jobs do use the freezer/oven method due to interference fit.
 

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Discussion Starter #4
I may have to go one of those routes. Its hard to believe I cant' find anybody that sells a tool for the pinion bearing...I just want to use my new press! At least ill get to use it on the S trac.
 

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I'm not aware of a special tool. I've always used a hot plate, oven, or anything (other than open flame) to get the bearing warm, and then it just drops right on. To remove one, you need a bearing separator. And that tool comes in handy for more than splitting bearings off of shafts. Should be a must-have tool for a press in a shop.

https://www.amazon.com/CTA-Tools-8060-Bearing-Separator/dp/B005OH0KA4
 

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An OTC splitter would be the preferred one. Much better handling. Specially if you want to reuse the bearing without buggering it up.
 

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When I press them on my 8.8 pinion I cut the cage off the old bearing place it on my separator with the new bearing on top and press the pinion on.
 
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