[Andreiir]

That sound is from bearings , not from parameter , u can use 100 parameters , and it will sound same .
But maybe the mactec can show us his low noise spindle to compare the 2 spindle , but i doubt that u can compare a cheap bearing with a ceramic bearing .

[mactec54]

That sound is from bearings , not from parameter , u can use 100 parameters , and it will sound same .
But maybe the mactec can show us his low noise spindle to compare the 2 spindle , but i doubt that u can compare a cheap bearing with a ceramic bearing .

If your Bearings sounded like that you would want to replace them, the ceramic bearing is not making much difference to the sound, it's the way that spindle motor being a much larger diameter and how the windings are done in the motor

You obvious don't know these spindles even the cheaper spindles can have ceramic bearings and don't cost very much more, most already have C4 or ABEC7 rated Bearings which are quality bearings, so has very little to do with the bearings that makes the difference

The only reason I only post the basic Parameters setup for these spindles ( which I have hundreds of times ) is the user can have over heating problems by changing other Parameters incorrectly

Two Parameter that can be used is the skip frequency and uniform frequency area, these would be used where you heard the worst screech and in a RPM range that you don't or can't use so 6,000 RPM is the minimum RPM for most of these spindles so these Parameters can be used for noise control anywhere to eliminate the noisy frequency bands by setting these Parameters

Other Parameters Carrier Frequency and Voltage Frequency all can be adjusted for noise control, but if you don't know what you are doing then don't go there as you can do more damage than good if you get it wrong, but these are just some of the Parameters that can be used to get a smooth running low noise spindle,

There are more than one different way to change Parameters to over come the noise you heard in the video which was more than normal

[gas_liosia]

That's right.