Plain bearings or Solid Bearing

In this bearing sliding friction occurs between the shaft and bearings for shaft surface riveted by the bearing surface with an intermediary layer of lubricant. Plain bearings capable of high-cycle rivet shaft with a large load. With simple construction, the bearing is easy to be assembled. Due to the friction in the bearings with shaft it will require a large initial torque to rotate the shaft.

In lubricating plain bearings are functioning as a collision and vibration dampers that will minimize noise caused. In general, plain bearings can be divided into: 

• Radial bearings, Sleeve / Bushing Bearings, Spit-half Bearings, Sleeve Bearings which can be cylindrical, hemisphere, ellipse and others. 
• Axial bearings, shaped hinge, collars and others. By using the solid bearing is less expensive replacement cost

Figure 3.8 Bearing glide

sleeve Bearing
In solid bearing, shaft rotating on bearing surfaces. Between shaft and bearing are separated by a thin layer of lubricating oil. When the operating shaft rotates at a speed detained by a thin layer of oil is not the bearing. A very simple form of solid bearing Sleeve Bearing is also called bushings. Sleeve bearings are generally used on its shaft that moves the wheels of awal.Camshaft arrested in position by the sleeve bearing on the engine block.

Figure 3.9 Sleeve Bearing

Shaft detained by bearing called Journal, and detention to the outside by the sleeve. When the Journal and Sleeve is made of metal (steel), with a good lubrication allows very little contact between two surfaces. Sleeve of bearing mostly coated with Bronze, or Babbitt metal. Bronze sleeve bearings are generally used in pumps and electric motors.

Figure 3.10 Solid Bearing

Solid Bearing coated with the metal that is softer than the shaft so that in case of rotation between them, so that experience is bearing wear, and not the shaft. Sleeve bearings generally use pressurized lubrication which passed through the holes in the Journal.

Split-half Bearing

Figure 3.11 Split-half Bearing

Another type of Solid Bearing Bearing is Split-half. Split-half Bearing more widely used Outomotive engine is the crankshaft and connecting rods. Rod crankshaft bearing caps using split-half bearings attached to the piston rod.

These bearings can be replaced when worn. Split-half bearing generally given additional oil holes, often in the form grooves that serve to the flow of oil that will lubricate the entire surface of the bearing. Split-half Bearings also have locking tabs (protruding parts) which will be placed in the notches (coakan) on the bearing caps. Tabs function prevents bearing moves horizontally on the shaft. Split-half bearing is usually made of two types of metal, bearing surface using aluminum which is softer than metal and dissipates heat.