painted Grimeca hubs

[Rob]

you can bash away at the centre of the old one

The number of Laverda wheels I've encountered with loose bearing fit is testament to the damage inflicted using the 'bash' approach. As Thomas says, the application of heat is your friend - and very helpful to overcome any Loctite used to retain the loose fitting bearing!

 

[CLEMTOG]

I agree entirely with you Rob, I should choose my words more carefully, I am sure you knew what I meant anyway.
CLEM

 

[Rob]

I am sure you knew what I meant anyway.

 

[piranha-bro2]

My original rear wheel (SF1) had the non-drive bearing fall out - had never been replaced but the housing had been 'stretched' from years of use. I had a steel ring made and the hub outer of the bearing housing machined so the ring could be heated and shrunk in place - fixed.

 

[nimrodneil]

to get the bearing out weld in a six inch piece of 16mm threaded rod, and then use a large tube, washer and nut, to pull it out, don't change one side and not the other, the bearings are cheaper than chips. with one bearing out you can bash away at the centre of the old one, which you are scrapping, don't do that when you fit the new ones, only press/or knock on the outer rim., sometimes an old fashioned expanding metal bolt such as Rawlbolt, will do the job, tightened into the bearing, and then drifted out from the other side
CLEM

I know how and have done bearings before but this doesn't want to come out that easily. wasnt sure if this needed a different approach, now need to up the anti. don't want to get involved in the speedo drive removal, will apply a bit of heat. thanks for your input.

 

[nimrodneil]

The number of Laverda wheels I've encountered with loose bearing fit is testament to the damage inflicted using the 'bash' approach. As Thomas says, the application of heat is your friend - and very helpful to overcome any Loctite used to retain the loose fitting bearing!

I have been suspecting loctite ??

 

[Paul Marx]

I have been suspecting loctite ??

Loctite will let go if heated enough.

Paul

 

[nimrodneil]

hi all managed to get some time today, picked up the hubs after cleaning and polishing , applied some heat and the bearings came out, no problems. cheers again for all your input. now to get some rims and the wheels built.

 

[michipons]

You could cerakote them, you can then choose any colour even aluminium color, or a transparent coat to protect a polished finished.
extremely resistant to any temperature, sun or corrosives. And no clearance problem as the coat is extremely thin…
Miguel