 
|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
|
|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
In Reply to: Re: placement of roller bearings? posted by yannzola on March 25, 2004 at 10:04:13:
Hi y,Is the equilateral triangle the largest you can fit under the component? (It should be.)
Is the lightest area of the component lifting off the Hip Joint?
As long as you've got good, solid contact (which should be the case with a three point support), different weights on the different Hip Joints shouldn't matter. Think of it this way: Even on the component's own feet, weight distribution is not symmetrical. It doesn't matter.
The only time I've found this to be an issue is with air bearings, not roller bearings. With an insufficiently large air bearing, a compontent will tilt downward toward its heavier side. Even this is taken care of by using a larger diameter (than the component) air bearing, re-centering the component's weight on top so it sits "level".
Hope this helps.
Barry
Follow Ups:
Hmmm....But... roller bearings need to roll. Unlike standard component feet. Seems that more stress on any given point would selectively dampen horz. movement in that direction. No?
Here's a thought. Find the components center of gravity. Make that point the center of the largest equilateral triangle possible.
I wonder if you would get an improvement in motion/isolation?
y.
Hi y,Try it and see (hear).
But if the right rear corner is the heaviest spot, that would make for a pretty small triangle, assuming you want all three bearings under the component.A smooth, hard surface for a smooth, hard ball to roll on will provide low enough friction for the bearings to do what we want them to do (i.e. help prevent the passage of vibrations into the component).
As long as the roller bearing can take the weight of what it is supporting, that weight is of no consequence. The proof: a heavy power amp (with symmetrical or asymmetrical weight distribution) will roll just like a lightweight CD player will roll. The weight of the amp doesn't prevent the bearing from doing its job.
And those who tell you the ball isn't supposed to roll simply don't understand the concept... and most likely haven't listened to the results. When "theory" and experience are at odds, in my experience it is the theory that needs revision.
Barry
"As long as the roller bearing can take the weight of what it is supporting, that weight is of no consequence. The proof: a heavy power amp (with symmetrical or asymmetrical weight distribution) will roll just like a lightweight CD player will roll. The weight of the amp doesn't prevent the bearing from doing its job"Odd. This has not been my experience at all... the more weight I add, the more energy it takes to get the bearings rolling from a dead stop. Also, the heavier the load, the more friction damping seems to occur (less "swing" time before coming to rest).
y.
This post is made possible by the generous support of people like you and our sponsors:
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2025, Audio Asylum, all rights reserved ]
