what type grease is required for a centrifuge bearing
Bearings and Lubrication. A shielded, grease-lubricated ball bearing can be compared. to a centrifugal pump having the ball-and-cage assembly as its impeller and the. annulus between the stationary shield and the rotating inner race as the eye of. the pump.Shielded bearings are not sealed bearings.he housings serve as a lubricant reservoir and are filled. with grease. By regulating the flow of grease into the bearing, the shields act. to prevent excessive amounts from being forced into the bearing. A grease. retainer labyrinth is designed to prevent grease from reaching the inner side. of the bearing.