Pneumatic Grease Gun to Grease Wheel Hubs

Updated 07/08/2020 | Published 07/07/2020

Question:

Would a setting of 100 lbs on my compressor be safe to add grease to my axle bearings?

asked by: Jason C

Expert Reply:

Sounds like you're using a pneumatic grease gun. I'd be leery of using a pneumatic gun to grease my wheel bearings, as it's easy enough to overfill them with a manual gun and blow out the grease seals which means you'll need to tear down the hub to replace the seal. You'd be best served by taking the cautious route and filling the hubs manually. A product like the # ALL940798 you'd looked at would work perfectly.

expert reply by: Mike L