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  Bearing Buddies, Sure Lube: Too much grease?

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Author Topic:   Bearing Buddies, Sure Lube: Too much grease?
whalerron posted 02-06-2002 12:30 PM ET (US)   Profile for whalerron   Send Email to whalerron  
I found a very interesting article on the Timken Bearing web page. Timken is a bearing manufacturer and their article describes the proper wheel bearing packing procedure. At the end of the article, they say that the bearing container, the wheel hub in our case, should never be more than half full of grease. Too much grease prevents the bearing from throwing off excessive grease and causes grease churning. This creates excessive heat in the bearings which shortens the bearing life. This would imply that all of the Bearing Buddy and Sure-lube type systems are doing more harm than good.

http://www.timken.com/products/bearings/techtips/PDFs/Vol3No2.pdf

Duncan posted 02-06-2002 12:40 PM ET (US)     Profile for Duncan  Send Email to Duncan     
Still has to be less damaging than saltwater intrusion!!!
flieman posted 02-06-2002 01:35 PM ET (US)     Profile for flieman  Send Email to flieman     
I have seen cases were guys constantly pump up their buddy bearings and end up blowing out the rear seal. I put grease mine until the plate barely moves and then quit, I do not pump them until grease comes out the vent hole as it puts a lot of pressure on the rear seal. Just my ideas
FLieman
tuna1 posted 02-08-2002 10:13 PM ET (US)     Profile for tuna1  Send Email to tuna1     
A Yankee solution i have used is to drill and tap a hole in the wheel hub between the bearings to accept a grease fitting and then to install the rear grease seal backwards so the grease in the hub can excape(when hot) when needed with out poping the dust cap off. Then all i do is to grease the wheel hubs 1 stroke on the grease gun before each trip.Never had any bearing problems and works like a Buddy Bearing at very little cost.

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