For the cost of a new bearing it would be foolish not to replace it considering all the work involved to gain access to it.
There should not be any slack in the your wheel bearings. The more slack the will bearing has the quicker the will bearing will fail.
So the paint will stick and not peel off later.
As far as I know they can not be cleaned. Must be replaced.
Inside the joint are large ball bearings that give the shaft flexiblility. Either the needle bearings inside of each ball are damaged or the ball itself is. In either case, the ball will not ride smooth in the hub and cause a clicking. A clicking axle can be run for a while, but it will at some point break or come apart. It should be change as soon as possible.
Clear acrylic is used for interior and exterior designs. They are easily managed and simple to clean. It is a petroleum based product which should be handled with care and should not be cleaned with heavy cleaning products, which may cause markings and damage to the acrylic form.
A hamster cage should be cleaned weekly.
A horses stall should be cleaned every day.
How should tender vegetables be cleaned before use?
Everyone should get their chimney cleaned once a year.
Public restrooms should be cleaned once a day.
It should be folded into the cap.
The wheel bearings are sealed and should last a long time. If you think they are bad you would have to replace the bearings they cannot be repacked.
Front wheel bearings in a car should be well greased but have never heard of them needing to be earthed.
Common signs of wear and tear in bicycle wheel bearings include grinding or clicking noises, wobbling or shaking of the wheel, and difficulty in spinning the wheel smoothly. To properly maintain bicycle wheel bearings, they should be cleaned and lubricated regularly to prevent dirt and debris from causing damage. Additionally, checking for any play or looseness in the wheel and adjusting the bearings as needed can help ensure optimal performance.
When they get noisy.
There should not be any slack in the your wheel bearings. The more slack the will bearing has the quicker the will bearing will fail.
It has to be cleaned every so often, mainly if you can see that it is dirty than you should clean it. And it really should be cleaned every 4-5 weeks.