bearing question for 200x

[rolayotte]

:doh: Recently bought a 86 200x with cooked bearings in the back
so now i have to replace bearing carrier due to damage and i was wondering if their is any oil or grease that goes in there????

[dads]

The bearings are sealed with a rubber dust seal. the bearings fale because they only use two bearings . they have aftermarket carriers that use four bearings. if your replacing the carrier i would look into that.

[Fuzzy]

I agree with dads. To bad the carrier got smucked up. A new stock one will run you about $200.00 just for the carrier. You might want to keep a eye on ebay for a used one. Depending on what your budget is.

[Ahickey]

I have never had a 200X, but I always thought that most ATC bearings died because the grease gets old and stops lubricating properly or it gets rinsed out and dirt and water replace it. I usually take the inner seals out of the bearings and put a grease fitting in... it makes bearings last indefinately. I noticed when I took apart my 1985 350X that the swingarm pivot bearings were dry. The swingarm is practically made for a grease fitting, I can't believe Honda never put one on them. I drilled a hole and tapped it 1/4 - 28 and now I've got swingarm bearings that are always running in fresh grease. Do the rest of you guys put fittings in or just replace your bearings every 6 months?

Adam

[dads]

The bearing fail because there is only two and they can't handle the abuse. but they do have a grease problem too. The bearings are not realy designed to be packed full of grease, they need to breath. Their not designed to push grease it makes them get hoter that they should. I fill the carer half full of grease. it ads more life to the bearing.

[dunerash]

the axle bearings are sealed units and dont need to be greased..the PIVOT bearings are needle bearings and DO need to be greased..if youve ever rusted your bearing to the pivot bolt and couldnt get the bolt out?(mine finally came free with a sawz-all and 4 metal blades)...i take thatapart every season and repack it...if for no other reason, to make sure it still comes out :p

[Ahickey]

I haven't had much luck relying on those seals to keep the grease in and the dirt and water out. My logic is if you keep fresh grease inside with a greasegun then the water and dirt cannot penetrate the bearing. How is a regular ball bearing unlike a needle bearing as far as lubrication is concerned? The carrier bearings come packed with grease, why wouldn't it be the proper lubricant? Also, how much heat are we talking here that it would do damage to the bearing? These things are made out of steel.... on a 110 degree day running the ATC wide open for 10 miles straight the carrier probably doesn't get any hotter than 150 degrees. Without enough grease though the friction probably causes temperatures 5 times that high.

Adam

[dads]

When a bearing spins at high speeds it is no longer round. Do to heat, friction and the Gs that are inflicted on it, It tens to flatten out a little. The grease is a lubricant, not a coolant.
When they stop spinning they slowly come back to round again. If you fill it with grease you ad another factor to distort the bearing. Pushing grease.” And now we get to the bad part. “
You race for a couple hours stop to have a beer and a butt. Your bearings are hot the grease melts cools the out side of the bearing in it’s distorted form and it wont go back to round. After going through this a nuff times they fail. That’s why when I put grease in the carrier I leave the dust seals on. That whey the oil from the grease seeps in as needed.
Ball bearings are made from different steel than roller bearings. Roller bearings are made to quick cool. Even roller bearings distort when spinning.
:headbang:

[ATCRYDER]

Obviously youve got your answers:) so ill congratulate you on buying an excellent machine. Got naye xtra parts or need any?

Rob

[dads]

To tell you the truth, Single bearings in a carrier are destined to fail. So any modifications you do to the bearings can only help. Even pumping them full of grease is better than when you by them. So try any thing you like to get longer life out of them.

:hail:

[xr650x]

If you want your rear axle bearings to last longer, when you get a new carrier, get one that has tapered bearings in it. Tapered bearings are designed more for the types of stresses that are put on rear axles..... even if you go with a double row bearing carrier, it will fail... those types of bearings are not designed to handle loads from the side.... Tapered bearings are designed to handle loads from the side, and will last much longer....

but either way you go, if you do some routine maintanence on your machine and keep them clean and lubricated your bearings will last much longer than if you just put them in and forget about them.....

[Fuzzy]

Thats one thing i like about the 83-85 200x no carrier. Bearings and seals for the rear are only about $15.00. And i could replace a set in a hour. So i dont worrie to much about trying to preserve them.

[markb]

keep in mind with the tapered carrier if you could find one:
the tapered bearings typically have a larger o.d. which reduces the available camming of the carrier. this can lead to major problems with chain tension and different sprocket combos, i.e. you can't get proper tension without a half link and as anyone who has looked knows 520 o ring halfs don't exist! sealing them can be an ugly proposition also, but they do have proper applications such a drag racing. i agree that the 2 thin bearings barely have a chance under ideal conditions but the main culprit is a worn sealing surface on the sprocket hub or the brake hub which allows all kinds of crap in. i turn down all my sealing surfaces and make 17-4 stainless sleeves for the seal to ride on and it really helps. this week we're going to try using 660 bronze to do the same thing on a 300 ex(one too many wheels) because it's easier to work with and might stand up to this abuse better.
mark:lala:
i like this dancing marshmellow to much.....i need help