Can't figure this out alone guys

[Larchet]

So recently i have started to notice that some of my equipment have started huge vibration and this happens even without any load and capacity and after my efforts to determine heavy spot this had no result. Tried spin the drum with placing weight on top. After this, the drum stopped halting with the heavy spot at the bottom, the vibration improved slightly, but it's still noticeable. I inspected the bearings and had to replace one because it had play. The vibration reduced slightly, but the vibration issue remains. How can I eliminate the vibration? I even thought about buying balancing instruments, as I also have a mower and drying fans. I looked at some options under $5000: Vibromera, ADASH, ACEPOM322 (Chinese). What other instruments can you suggest?

[RichardKerr]

Your method, known as static balancing, works well for narrow rotors, such as grinding wheels. However, with a wide rotor, you might encounter a different issue: imagine one side has a heavy spot at the bottom, while the other side's heavy spot is at the top. When you rotate the rotor 90 degrees, these heavy spots balance each other out, so the rotor doesn’t turn with the heavy spot down. But once you start spinning the rotor, these heavy spots create centrifugal force, leading to vibration. This phenomenon, called couple imbalance, cannot be resolved by static balancing and requires dynamic balancing.

Additionally, check for cracks in the welded joints and ensure all bolts are tight.

During our rotor balancing process, we compared the Balanset1 and ADASH VA4 tools. Both provided good results with matching FFT analyses.

The balancing results showed ADASH required 238 grams at 103 degrees, while Balanset indicated 244 grams at 114 degrees—practically the same. Note that Balanset requires a laptop, whereas ADASH does not.

[Terferm]

Just recently, I performed drive shaft balancing on my truck using the Balanset tool, without having to remove it. In the beginning, I used clamps to temporarily attach the weights, and frankly, I doubted it would work. But when the vibration stopped, I permanently welded them on. All in all, it's an excellent tool. It's affordable, efficient, and does its job perfectly. Were i you i would definitely go to professionals, but you can do this operation alone, providing that you have good equioment for this you know and i think that such equipment has been listed above, so good luck to you