We’ve tested dozens of popular “bearing” greases and found Kluber high speed bearing grease to be the best.  Most “bearing” greases are general purpose greases, designed to be used in bearings, ball joints, universal joints, etc.  This is fine for automotive applications, where wheel loads and bearing RPM’s are low.  However, in racing applications, wheel loads and RPM’s are high, requiring a completely different formulation of grease.   

It doesn’t stop at using the right grease. The bearings must be packed properly as well.  Over-packing is common.  A properly packed bearing should be filled no more than 50% full of grease.  Over-packing causes additional heat build-up as the bearing works to push out all of the excess grease.  (Have you ever noticed how little grease is left in the bearing after it is run?)     

To properly pack the bearing, fill the cavity between the bearing rollers.  Only fill every other roller.  No grease is needed in the bearing cage overhang above and below the rollers.  No additional grease is needed in the hub.  Only fill every other roller. 

How often do you need to repack the bearings?  It depends on the application, but every 1500 laps (assuming typical ½ mile or under short track) is more than adequate.  In applications where the car is washed, inspect the hubs for moisture.  If moisture is present, debris is most likely present as well and the bearings need to be cleaned and repacked. 

To expedite the bearing packing process, try our Precision Bearing Packer or our Ultra Low Drag Bearing Grease in the syringe applicator.