750 rear wheel bearings

gtlsteve

gtlsteve

Full member
Location
Blue Mountains Australia
Need to replace the rear wheel bearings on the my 750.
Laverda drum brake model.

Unfortunatly the part number in the manual is not to helpful in identifying the bearing ?

The best Info I have is
Rear wheel 6303 rs
Sprocket hub 6205 rs

Is that correct?

 
I don't really understand why Laverda wheel bearings need to be 2 RS, the inside of the hub is pretty much hermetically sealed and there really isn't any need for a seal at all in there. I agree that it's a good idea on the outside, though.

Ken
 
Maybe having a seal on both sides keeps the lubricant within the bearing.
 
Picked up two bearings at CBC in penrith today. Sealed on both sides, you still get grit and crap inside Ken so for $16 each no big deal. They had nothing else anyway.


All is good thanks.

Just got to get through hysterical rego this afternoon.

Then on the road she goes.
 
Good news Steve,a mate used to gently remove the inner shield and add more grease and put the shield back,he was a fully trained mechanic but seemed to me overkill.He was really fussy
 
Ken,

Having the bearing sealed on both sides keeps the lube where it should be.  None can escape in to within the hub, the spacer itself doesn't need any... the additional friction caused by the seal can be neglected in our case.  If you suffer from friction paranoia, you can use shielded bearings, as do many serious racers.  These have a non-contact metal shield that does not completely seal, so is a bit iffy when used in wet, grimy environments and need to be replaced at far shorter intervals.

Removing the seal to add more lube is indeed overkill.  The amount of lube included is more than enough to last at least the calculated lifetime of the bearing, adding more can cause other problems like additional and unwanted friction or even causing the balls/rollers to slide instead of rolling.

piet
 
I don't really understand why Laverda wheel bearings need to be 2 RS, the inside of the hub is pretty much hermetically sealed and there really isn't any need for a seal at all in there.
Click to expand...

Ken,
2 RS is at least needed, so the inexperieced can't fix them the wrong way round.... :D

Ernesto :D
 
The gixxer1100 rear wheel has 2 bearings side by side each side of the hub. I considered maybe removing the seals from the inner face of the adjoining bearings but ended up leaving them in place.
What have others that have fitted 1100 rims done?? Thoughts??
 
You must log in or register to reply here.
Back
Top