Clutch problem or manual box Hyundai Tucson

I have a Hyundai Tucson SUV Motor 2.0, 2WD, year 2006 to gasoline, of manual transmission, I have a problem that the vehicle with the neutral manual box presents a noise and when stepping on the clutch pedal the noise disappears.
I have consulted with several mechanics and give different diagnosis, one says that it is the collar, another indicates that it is the bearing of the entrance axis of the box and another indicates that they are the lazy springs of the clutch disc.
Who can really tell me what the fault can be ???
I also need if someone has the numbers of the bearings of the manual and differential box that are not original of the manufacturer, can be other bear manufacturers, INA, Timken, NSK, Koyo, FAG, SKF, etc., etc. This is to have significant savings.
Before lowering the box I need the numbers of all bearings.

Thank you very much

They are the bearing of the box, since when you step on the clutch pedal the engine box is disconnected, and it does not rotate which does not produce noise. Discard 100% El Collarin

It is precisely the other way around, if they are the bearings of the box in point, it is when it does not sound since the axes that are mounted by the speeds are not forced. On many occasions I have seen how a collar (which is a bearing) does what you comment when it is in poor condition, when you step on the clutch you force it against the mace and can stop ringing or sounding less, and when you release the pedal you release it and continue turning through contact with the mace but in a freer way, hence the noise.
Even so, these types of noise are complex and can be surprised, do not discard anything lightly. As the box you will have to download the same, the simplest thing is to check the collar first and if it does not make any noise you will have to do with the box as the partner has told you.
All the best

I am also the opinion that it is due to the clutch necklace. For the same reasons that the partner "ostiaveja" has given and adding that if it was the bearing of the primary that is bad, the balls would be "square", the axis would be cleared and the marches would not gone well, in addition that the bearing of the other side of the axis would also be damaged, think how quickly this bearing would break if it was bad. for the forces you have to endure. The failure you describe is typical of the clutch necklace. Greetings!!

The problem is the role of the strength or entrance axis of the box