• Hi everyone,

    As you all know, Coffee (Dean) passed away a couple of years ago. I am Dean's ex-wife's husband and happen to have spent my career in tech. Over the years, I occasionally helped Dean with various tech issues.

    When he passed, I worked with his kids to gather the necessary credentials to keep this site running. Since then (and for however long they worked with Coffee), Woodschick and Dirtdame have been maintaining the site and covering the costs. Without their hard work and financial support, CafeHusky would have been lost.

    Over the past couple of weeks, I’ve been working to migrate the site to a free cloud compute instance so that Woodschick and Dirtdame no longer have to fund it. At the same time, I’ve updated the site to a current version of XenForo (the discussion software it runs on). The previous version was outdated and no longer supported.

    Unfortunately, the new software version doesn’t support importing the old site’s styles, so for now, you’ll see the XenForo default style. This may change over time.

    Coffee didn’t document the work he did on the site, so I’ve been digging through the old setup to understand how everything was running. There may still be things I’ve missed. One known issue is that email functionality is not yet working on the new site, but I hope to resolve this over time.

    Thanks for your patience and support!

Blown Cush Hub

MotocycleWriter

MotocycleWriter

Husqvarna
AA Class
Got back from a week of riding in SW Colorado and went to change back to my street wheels and tires and discovered the dreaded cush hub bearing failure. I have the parts as

6204 x2 cush hub bearings
30x40x70 x1 cush hub seal

I'm going to go ahead and do the wheels while I'm at it

6203 x2 rear wheel bearings
30x40x7 x1 rear wheel seal
6203 x2 front wheel bearings
25x40x7 x2 front wheel seals

I do have a question, though. As opposed to reinventing the wheel, no pun intended, is there a method for getting that spacer pipe out of the cush hub and getting it back in? I've pulled and pressed plenty of bearings but never had a set with a spacer pressed in like that.

14355753_1085715214798373_4435238868542839995_n.jpg
 
Any advice on bearing type? I don't want to go back with SKF. I've been advised to use Japanese bearings like NTN, and I'm sure Timken would work if I could find them. I've determined that C3 is the correct tolerance but what type of shielding/seal is correct? I see specs for single or double shield. Single and double seal. I'm not sure of the difference between shielded and sealed or single and double and don't know which is correct for this application. I'm guessing that single and double are referring to one side or both sides but my guesses have not always proven to be correct.
 
Starting with a bearing with a manufacturer's name on it is a good starting point. Mine were replaced with SKF and to date I haven't any issue with them. 8,000kms. You can lift the seal and check that it has enough grease if you are concerned. I don't think Temken supply the size of bearing required.
Check with your bearing supplier about the type of sealed bearings you need.
Also, I heated my carrier in an oven at 100c to removed the bearings and put the new bearings in the freezer and heated the carrier to re-install.
 
Would you mind posting your mileage at failure? Might be of use to some folks on the fence about bearing replacement.
 
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