Two solutions can be proposed for the vertical shaft washing machine:
- two deep groove ball bearings
- one deep groove ball bearing placed near the pulley and 2-3 needle roller bearings in the agitator body
The ball bearings commonly used have heavy contact seals to prevent the ingress of contaminants from the outside environment. Higher than normal internal radial clearances are suggested in order to compensate for the tight press-fit of the bearing outer ring inside the housing. The application commonly calls for greases with high temperature capability.