Urgent help needed

C

Cox76y

Member
Hi all,
I'm hoping someone can help me with replacing the rear wheel bearings in my ec300r.
I ordered the bearings online last week using the numbers in the parts manual online. Got them today and went to put them in but they won't fit.
According to the manual I should have 3 different sized bearings , left side is 6004 (20x42x12mm) which fits fine. Right side should be 6204(20x47x14) then 6005 (25x47x14). I can get the 1st bearing about half way in but despite lots of heat, banging and grease it just won't go in any further. Is anyone able to check that these sizes are correct. The old bearings were cactus so disposed of last week.Have a ride planned for this weekend so hopefully get this sorted soon.
Thanks if you can help.
Josh
 
Did mine the other day.

Your issue is with the 6204. Its wrong.

The hub takes 2 x 6004 + 1 x 6005.

The 6204 you'll have will be seated against the first step in the hub. Also measure the thickness of the spacer where it seats in the 6005, and the axle and do some quick maths.

Make sure the orientation of the washer that sits between the 6005 and 6004 is correct. If it goes in backwards it'll bind everything up.

Seals are 32x47x7 and 25x42x7

Those sizes have fit both my 2010 and 2013 models. Can't vouch for earlier models.
 
Thanks Jakobi,
Luckily I ordered 2 sets so I have a spare 6004 I can throw in. I can't recall there being a hub washer in there, have you any idea of the thickness of this?? I thought it strange when I was looking at the diagram that the inner bearing on the right side was a different size to the bearing on the left side. Guess you can't always rely on the parts schematics.

Thanks heaps for your help.

Josh
 
Ok, so it looks as though for some, a solution is to leave the washer out as per post by Brian.. I'm guessing the first owner of my bike did as it hasn't had one and I have had no binding issues.
 
you will have issues eating up bearings without the stepped washer in place on the sprocket side. hubs and bearings are made to be snug when tightened up, not collapsing and binding on each other. you probably can get away with a slim flat washer in there until you can find or get the stepped washer back in there, but your new bearings wont last long without it in place.
 
Precisely. Consider the dynamics of what happens when you torque the axle nut up.

It pulls everything together. Without the stepped spacer you'll be pulling those 2 inner races together, which the bearings will not enjoy.
 
Knock the 1 incorrect bearing you have in there now back out. Measure the recess for the 6004 and compare it to the thickness of the bearing. Compare that against the recess for the 6005. There should be a difference between the 2 which wil be the thickness that your spacer needs to be.

On my 2013 the stepped washer was different to the other thread. I'm not 100% certain on how it was machined, but I recall it sat nicely into the inner race of one of the bearings. Using a bit more brain, I'm sure that the variance in depth would sit between the 2 innner races, and that the step went into the 14mm ID a few mm. Again, you can probably double check this by measuring the depth that the spacer pushes into the race. ID of everything should be 12mm. From memory many abour 3-4mm of spacer actively holding the races apart.
 
As anyone tried these SKF kits :

http://www.greenlandmx.com/producto...-trasera/15171-kit-skf-rep-rueda-trasera-gas/

wsbkit-f002-ggjpg.png


?

Does it pack the correct bearings ?
 
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