Dust Seal Used For Crushing Machine In Guam
Certain mechanisms using spinning labyrinth seals, such as in U.S. Pat. No. 3,118,623, are very effective for excluding dust, but such machines are restricted to smaller sizes because of the very high costs, speed limitations, and inadequate load carrying capacities of larger roller thrust bearings. In the larger sizes which are required to produce crushed rock in the capacities that today39s and future markets demand, bigger crushers are essential.