A Machinist Question

  • mick44
    mick44
    10 years ago

    Wanting to make a static wheel balancer for bikes.

    Question ? On the top of the two posts where  you push in the shaft/cones that push against bike wheel bearings, Is it preferable to have two bronze bushes or bearings installed on top of posts that the shaft/cones slide through. Im wondering if bearings would have too much drag compared to oiled bronze bushes when turning the wheel to see where wheel weights need to be installed.

    Im told that static balancing is more acurate than electronic shop balancers allthough I wouldnt really know.

    The reason I ask this is that in a year maybe, my school bus will be full converted to live in and I want to be in a position that no matter where I am, I can replace tyres and balance them myself as i will carry a set of spare tyres for the harley and my trail bike. Im looking at being self suficiant so to speak as I may well be hundreds of kilometers from the nearest bike shop at times.

    Cheers 

     

  • Independant_84
    Independant_84
    10 years ago

    I made a stand with adjustable legs and bought the shaft and cones online for about $40 the whole shaft rotates on 4 roller bearings attached to some plates wich run on the outer ends of the shaft. So the wheels bearings don't do anything but support the wheel.


  • allde
    allde
    10 years ago
    The only thing I've noted in the past when I have balanced a Cylindrical Grinders wheel, They have been done on a marking out bench, which happens to be dead level.

    In regards to your question " Is it preferable to have two bronze bushes or bearings installed on top of posts that the shaft/cones slide through", As long as their Concentric, Level and Parallel it shouldn't matter.
  • mick44
    mick44
    10 years ago

    Thanks for the info fellas.

    Independant 84, For $40 bucks, not worth getting above machined up, I will buy the kit as above,

    Cheers for that.

  • speedzter
    speedzter
    10 years ago

    I just made the two bearing supports similar to the picture above that fit to a set of car axle stands.

    Remove any rubber seals from support bearings, clean the grease out and lubricate with some light oil.

    Just fit the axle back in the wheel, and sit it on the bearings.

    No need for any special cones, etc'.

    They're not hard to balance, and really not that fussy.

  • FLHuTChU
    FLHuTChU
    10 years ago

    I actually just bought one a couple of weeks ago. I  started making one but when added up cost and my time, not worth it.  New one below.

    One thing i have found out is there is a green dot inside the rim and that turned out to be the light spot on the rims.

    Apparently there is a dot on Some new tyres and that is supposedly the light spot on the tyres also. So when i put mine on I will match up the light spot of the tyres on to heavy point on the wheel and balance as neccesary from there.

    Some say that you put the dot on the tryes next to the valve on the wheels but not in all cases. As you can see the valve on this rim is just off the top centreline.