BEARING IMPORTANT INTERVIEW QUESTION & ANSWER

IMPORTANT BEARING  INTERVIEW QUESTION & ANSWER:

Q: What is a bearing? What are the different types of bearings?

Bearing is a device that helps smoother movement with minimal friction which in turn helps enhances efficiency and speed. Considering two types of loading, radial and thrust, there are different types of bearings which help handle these loads. The basic difference in the types of loads is essentially due to their ability to handle weight and different kinds of loads for various applications.

Different types of bearings are:

-Ball bearing
-Roller bearing
-Ball Thrust bearing
-Roller thrust bearing
-Tapered roller bearing
-Magnetic bearings
-Giant Roller Bearing

Q: What are the functions of a bearing?

·         To guide the shaft.

·         To support the shaft.

·         To give free rotation to the shaft.

Q: Explain briefly about friction and anti-friction bearings?

·         ---Friction bearings. This type of bearings contacts that shaft directly such as bush bearing, journal bearing etc. These bearings generally made of cast iron, brass and gun metal.

·         ---Anti-friction bearings. These type of bearings have rolling elements such as balls, rollers etc.

Q: What are the various types of bearings?

·         ---Bush Bearing. It is a plain cylindrical bearing made of brass, gun metal, cast iron etc. Its inner bore is finished and made running fit to the shaft. It is generally used on low speed shafts carrying light load.

·         ----Ball bearing. It consists of outer race, inner race, steel balls and cage. The balls are rolling themselves in the tracks between the outer and inner races ,bearing is fitted on shaft while its outer portion is fixed in housing .Balls have point contact and are free in the races, friction makes balls to rotate.

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