wheel bearings

kiss161 said:
on the gas gas 200 the front wheel is a little loose .it has a little play? are these bearings sealed like say the ones on the rear of a rm 125? if not could i get away with greasing them? and if there not sealed when i but new ones if needed do i need seals? thx
Click to expand...

Yes, they are sealed bearings, and there are normal lip seals there too. It would be better to pull them out and replace them, they wont get better from greasing them, too late for that now.
The bearings and seals are off the shelf items, wont be hard to match up at a bearing supplier.
 
EDIT
Got your PM, its an 01. The bearings should be 6004 2rs(sealed), easiest way to be sure is to pull the old bearings out and read the part number off the side of them.
The ones in the ebay ad may not work, im not sure whether they wheels and axle are the same.
 
Last edited:
I have an 05 ec200 and I believe the hubs are worn and the bearings spin in their seats. Buy good quality bearings! I dot punched the hub and used a bearing / stud glue. Will let you know how I get on.
 
Why so much trouble with wheel bearings? Do you guys pressure wash? Do you run the soft OEM spacers that groove and let dirt and water in fast? A few things and you will eliminate bearing problems:

Start off with fresh bearings, seals, and HARD spacers. Make or have stainless ones made at a shop and they will last for years. The alloy ones are a joke, and so are some of the hard coated alloy rear spacers. I found the dia undersized in an attempt to reduce seal pressure and wear, but this is like starting out with a worn spacer. I made up stainless sleeves and pressed them on a few of these.

Leave the sealed bearings alone, removing the factory seals and repacking the bearings is not the answer. Lube the seal lips and pack the gap between the seal and the bearing completely with a good waterproof grease like Castrol Pyroplex Blue. This is your barrier.

Remove your wheels, clean everything, and repack as above every couple rides and every time the wheel is off. If you notice more crap getting past the seal and into the grease behind it, change the seal.

Oh, and don't pressure wash.
 
Thats how I do it Glenn. I need to get some new spacers though as the alloy ones are grooving out from the seals.

I got around 3000+kms out of the front set, and just changed the rears at 4500kms. This is riding loads of mud and creek crossings. I pull and grease the axels and check the bearings every couple rides due to the conditions.
 
Can anyone tell me what the rear wheel bearing seals are. Can find the codes for front seals and bearings and rear bearings, but not rear seals.

googled and it seems like 25x42x7 and 32x47x7 anyone able to confirm these?

Want to go to the local bearing supplier and get a spare set - any recommendations on what type to get?

should i rather go with pivot works or all balls kit? (they only list 2008 gg on PW site, has it changed, see they also have 3 seals on the rear?? http://www.pivotworks.com/ProductInfo.aspx?item_id=4532)

thanks
 
I'll have a look at the boxes I have downstairs from when I did mine. I actually might even have the old bearings still sitting on the bench.
 
swazi_matt said:
Can anyone tell me what the rear wheel bearing seals are. Can find the codes for front seals and bearings and rear bearings, but not rear seals.

googled and it seems like 25x42x7 and 32x47x7 anyone able to confirm these?

Want to go to the local bearing supplier and get a spare set - any recommendations on what type to get?

should i rather go with pivot works or all balls kit? (they only list 2008 gg on PW site, has it changed, see they also have 3 seals on the rear?? http://www.pivotworks.com/ProductInfo.aspx?item_id=4532)

thanks
Click to expand...

FWIW Pivot Works is now offering a limited lifetime warranty on their bearing kits
 
spent quite a while on their site and before i knew it there was $250 worth in my cart, luckily i did not click the pay button or i would be divorced .... and riding twice a weekend .... hmmmm ;-)
 
10:15pm and I'm on the mission for you! I still had the old bearings on the bench so can run the verniers over them if you need sizes. Had the boxes from the Nachi's I installed in a zippy bag ready for next time I need to order to. I used 2NSE9 grade

2 x 6004
1 x 6005

Just googled some more
6004 = 20x42x12
6005 = 25x47x12

Thats on my 2010 model with AJP hubs. I assume yours would be the same.
 
I think swazi was after the rear seal numbers.
They are 32x47x7 ( #32428) and 25x42x7 (#25466).
 
Oops. Didn't read properly. Thanks Barry! I'll write that down in my consumable parts list!
 
Hi there im lookin to replace my 2011 bearings and also buy some spare wheels, can anyone confirm bearing codes eg 6004 and what year wheels fit
Thanks in advance
 
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