Cleaning big components in an ultrasonic cleaner is easy. Simply please the large part in the wire basket and turn the machine on. However, if you need to clean something smaller in a large tank, there is a simple solution.
One of our customers found this work-around by placing the small bearing in a glass jar filled with cleaning fluid and then placing the jar in the ultrasonic tank that is also filled with water. The vibrations then travel through the large tank and into the glass jar that is holding the bearing.
Obviously the thinner the sides are on the glass jar, the better the cleaning action. But for cleaning small fiddly components, this is a great way to keep them in one place.