Different Types of Bearings and their Uses

The main function of a bearing is to reduce the friction and stress in rotational and linear movements. Bearing are generally little wheels over which, a device is rolled or moved. These wheels come between the surface of the body, which is rolled and the surface of the bearing. While reducing the friction, it increases the speed and efficiency of the work. Bearing can be divided on the basis of their load handling capacity. Generally, bearing are designed to handle thrust or radial load or some are made to handle both.

Ball bearing is very common bearing, which are used to handle both radial and thrust load. They can also handle small weight. These bearing are used in large number of application from use in cycles to uses such as roller blades. But these bearing cannot handle the weight as they can get deformed.

Roller bearings are made to handle heavy load or weight. The roller bearing can be in form of cylinder. This shape of cylinder spreads the load in large area thus enabling the bearing to carry the heavy load. The structure of the roller bearing also means that they can handle radial load not thrust load. Needle bearing are used in small space. These bearings work in small diameters and can easily fit in the smaller applications.

Ball thrust bearing are used on low speed low weight applications. They are primarily used in thrust load applications. Bar stools for example, use the ball thrust bearing to support the seat. Roller thrust bearings, like ball thrust bearing is also used for thrust loads. These bearing can handle large weight, and that is why they are used in car transmissions, to support the helical gear. Generally, roller thrust bearing is used for gear support.

Tapered roller bearings can NSK Bearing dealer in Delhi handle both radial and thrust load. These bearing are used in car wheel, where extreme radial and thrust loads are carried by them. There are other bearings that are made for specific tasks. These bearings are called magnetic bearings and giant roller bearings.  Magnetic bearings are used in high speed tasks. These bearings come with no moving parts. This feature enables the bearings to support the devices moving at high speed. Giant roller bearings, as the name suggests, are used to move extremely heavy structures such as large structural components and building.

 Jewel bearings have an inner metal spindle that moves in jewel lined hole.  These bearing are used in mechanical watches and clocks.  They are used in watches because their low and predictable friction guarantees the accuracy of the watches. Jewel-lined pivot hole.  They handle the load by carrying the rolling the axle slightly off the centre.

Fluid bearings SKF Bearing dealer in Delhi use liquid or gas to support the load.  They can be divided into two types:  hydrostatic bearings and fluid dynamic bearings.  Fluid dynamic bearings are used in high load, high speed applications, where ordinary ball bearings cannot be used because of high noise and vibration.