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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Steering Head Bearings
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[QUOTE="jmics19067, post: 439295, member: 27963"] although I wont know all that is different between the two I obviously can see how they are different. Heat is a very major concern in the application I was taught for. And I was only taught by older mechanics working on wheel bearings. Habits good or bad are hard to break though and I will continue to treat bearings and races as one. Hey my money my feel good factor right? ;) Any way I was definately trying to give some insight on what I was taught and what I saw or at least what I believe I saw in what I have the most experience doing. On trailer bearings I have most likely seen every type of failure even though I wouldn't know all the different problems or the actual causes. Headset bearings I can only account for two problems that I can immediately specify rust damage from lack of decent grease and broken/worn from being loose where the cases I saw included having to change the races. I have seen a few strange problems in needle bearings in Ujoints in badly set up angles of drivelines. The local reps of Spicer and International Harvestor are the ones that gave me the term brinelling when I had a problem with a new truck eating Ujoints a few years back. When I saw the actual title of this thread I was amused by its sub title and yet was alarmed since I have seen bearings with flat spots on the previously stated truck Ujoints. It's problem being a bad angle<actaully none> so the bearings wouldn't roll and spread the grease around. I have also seen wheel bearings flat spot because they where siezed but I am pretty sure no one would try and ride headset bearing like these since they where tighter than the gates of Hades. I have damaged the cages before on bearings from mishandling ie. dropping them on the floor or not getting a good grip with the pry bar while popping out the seals. In those cases I have only changed the bearing and not the race and I can't say whether or not they prematurely failed . Never heard any complaints anyway. Jaybird, I definitely trust your knowledge and insight but this one issue had me raise my eyebrow :think: I know lets blame J.P. :) Julius, please give us all you know about your bearings . Did you actually see damage on your bearing? If so what did the damage look like and is it on the race? And more importantly did you get that thing back together yet so you can ride :thumb: [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Steering Head Bearings
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