Chaincase Bearings

[Michael Potter]

I would not heat case up might melt seal. Best way is to press in. Put a little oil on outside of seal.

 

[yamaha06]

I have done mine 8k on sled clutch side toast and was serviced last season chain side looked ok but signs of spinning on shaft. I replaced shaft, seal and good bearings not china junk that was in there. Other sled 11k did both bearings and seal signs of spinning but not to bad can reused shaft. Both sleds BOP Wedge.purchased from Canadian bearing were all Olin stock and seal from Yamaha was in stock as well if that helps.

Thanks I will have to check it out. The two bearings in the chain case are 6206 and 6009 with no rubber seals at all? Just want to make sure I order the right ones

 

[Hammer70]

Thanks I will have to check it out. The two bearings in the chain case are 6206 and 6009 with no rubber seals at all? Just want to make sure I order the right ones

Yes If my memory serves me correctly when I go in shop I will check for you just checked yes

 

[cannondale27]

Lower 6009 is same as brake side just seals removed

 

[cannondale27]

The bearings go in and out very easily with just a small amount of heat from heat gun on case. Freeze the bearings. Fall right in. Seals are tougher if not removing whole case and using a press.

 

[yamaha06]

The bearings go in and out very easily with just a small amount of heat from heat gun on case. Freeze the bearings. Fall right in. Seals are tougher if not removing whole case and using a press.

Alright, thanks. I am hoping I don’t have to change the seals, as long as I can get away with removing the shafts and changing the bearings with out damaging the seals.

 

[cannondale27]

Alright, thanks. I am hoping I don’t have to change the seals, as long as I can get away with removing the shafts and changing the bearings with out damaging the seals.

You are going to have to remove the shafts. I dont see any way around that.

 

[yamaha06]

You are going to have to remove the shafts. I dont see any way around that.

Yeah I will have to remove the shafts for sure. I’m just hoping I don’t damage the original seals in the case so I don’t have to change them.

 

[cannondale27]

Yeah I will have to remove the shafts for sure. I’m just hoping I don’t damage the original seals in the case so I don’t have to change them.

Gotcha. I used a socket and extension. The bearings tap right out with a warm case. could also use a slidehammer for even less risk.

 

[yamaha06]

I have some bearings coming for the chaincase, is have changed the top gear every year since the bushing has been worn. Last year I had the new gear with the through holes drilled in it and surprisingly this year it doesn’t look to bad, I have a spare one sitting there and will probably throw it in since I am changing my chaincase chain as it is so stretched there is is no more adjustment on the adjuster bolt. I would assume if I am changing the chain it’s probably recommended to change the bottom gear also? The bottom gear looks pretty good still but not
sure how it would be with the new chain.

 

[cannondale27]

I have some bearings coming for the chaincase, is have changed the top gear every year since the bushing has been worn. Last year I had the new gear with the through holes drilled in it and surprisingly this year it doesn’t look to bad, I have a spare one sitting there and will probably throw it in since I am changing my chaincase chain as it is so stretched there is is no more adjustment on the adjuster bolt. I would assume if I am changing the chain it’s probably recommended to change the bottom gear also? The bottom gear looks pretty good still but not
sure how it would be with the new chain.

I always change gears and chain at same time.