Slide shoe bearings are hydrodynamic shoe bearings cast of steel with a seamless overlay applied. They are linked in relation to the sliding ring and the shoe itself rests on a ball to allow for lift, flexibility, and alignment. During mill start-up, the slide shoe bearings require pre-lubrication. The slide shoe mill operates with two self-aligning and hydro-dynamically lubricated slide shoe bearings.
The end of the slide shoe assembly holds the mill in the horizontal direction. The other side can move freely in the axial direction to enable longitudinal thermal expansion and contraction in the mill body. The bearings are lubricated by a separate lubrication unit and both bearings are shielded by the shoe guard. It made the position adjustable and a better tie arrangement. Also, the feed chute is flexible and adjustable by horizontal moment for easy access and maintenance.
Enhancing Mill Shoe Bearing Reliability and Productivity
A cement ball mill is built to grind clinker, and gypsum and for the drying of cement elements. It is an additional element in the cement-making process. Today’s Ball Mills are generally designed with a slide shoe bearing.
These bearings have replaced the elder trunnion bearings, as they are less costly to buy and maintain. The operation of the slide shoe bearing is to keep the mill aligned with the mechanical process while enabling for mill rotation. The benefits provided by the slide shoe bearing include:
- Lighter mill weight (less energy to operate)
- More compact mill while maintaining capacity.
- Decreased mechanical stress.
Design and Lubrication
Slide shoe bearings are hydrodynamic bearings cast of steel with a seamless overlay applied. They are fixed in relation to the sliding ring and the shoe itself rests on a ball to enable for lift, alignment and flexibility.
During mill start-up, the slide shoe bearings need pre-lubrication. This is provided by a high-pressure oil pump which gives oil between the bearing and the journal. The oil, pushed under pressure, uplifts the mill and helps to decrease the friction between the shoe and ring, offering alignment. The minimum oil viscosity for most mills is 44 cast at 100°C and generally needs oil with an ISO 460 Cost viscosity. If you are looking for a slide shoe bearing ball mill, visit our website now.
