Member Since: 03 Nov 2009
Location: South West England
Posts: 17319
Supacat wrote:
Blackwolf ~ yes I did
I was trying to comment on the fact that the beads may be dynamic, in the dictionary definition of that word, whilst not addressing the fact that they do not dynamically balance, or rather address the coupling imbalance that contributes to dynamic imbalance; instead beads just address the static imbalance element.
The language of balancing seems a little perverse ~ maybe better to see static balance as the centrifugal balance. I found the pdf attachment to the previously linked Web page quite enlightening.
If you refer to fig 4 in the pdf for clarification of terminology, then bubble balancing cannot (at least as far as I can see) achieve anything to correct what fig 4 refers to as couple unbalance nor dynamic unbalance, however beads should move themselves to correct or at least reduce both of these. Beads will tend to move across the tyre as well as around it.
A modern tyre balancing machine, used correctly, should also address static, couple and dynamic imbalances.
4th Apr 2019 3:51pm
Supacat
Member Since: 16 Oct 2012
Location: West Yorkshire
Posts: 11018
Blackwolf ~ thanks, it's all good stuff.
4th Apr 2019 5:32pm
Keffer90
Member Since: 12 Dec 2017
Location: Leuven
Posts: 40
CDN38 wrote:
Supacat wrote:
CDN38 wrote:
other than the stick on weights which would only give a static balance.
Why do you say stick on weights only give a static balance?
In the case of Matt Lee rolled edge rims there is no "open lip" on the edge of the rim for clip on style weights, nor is there enough of flat surface for adhesive weights to sit. Therefore the only type of balancing would be to use the adhesive weights in the center of the rim, which is a static balance, or the balance beads.
Click image to enlarge
did the same on mine and it really works well
Click image to enlarge
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Blackwolf ~ thanks, it's all good stuff.
4th Apr 2019 5:32pm
