Bearings

By : Vikas Bhadoria

Updated : Feb 20, 2021, 4:21

Bearings are essential for our world. From trolleys to GATEs to power plants, bearings are used in everything. They are a crucial component and exist in numerous types and shapes. Not only that, but bearings are also an important part of GATE. Bearings notes for GATE pdf will come extremely handy to prepare you for Bearings syllabus for GATE.

Bearings can be defined as things that support a specific set of motion (restricting freedom). They do it in a system that can be static or dynamic. For example, a sliding door cannot be lifted; it can only be opened by sliding. The freedom of movement is restricted to allow only for sliding.

Most Important Bearings Topics for GATE ME

Topic	Explanation
Rolling Element	These bearings have balls or cylinders that make them an accessory when an object is rolled. It is much easier to roll something than slide something as the friction when rolling is lower than the friction when sliding. Due to this principle, rolling element bearings are used when rotational motion is to be facilitated. These bearings help in carrying the load with less friction. These bearings can be divided further into ball and roller bearings.
Ball Bearings	These bearings are ubiquitous. They consist of a row of small balls that function as rolling elements. Ball bearings are generally kept between two metal pieces that are annulus. The metal pieces are referred to as races. The inner piece rotates while the outer piece remains stationary.
Deep Groove	These are the most popular ball bearings. In this type of bearings, balls are contained between two metal pieces called races. These balls are used to transmit the load. They allow for rotation between the metal pieces. The balls are kept in place by something called a retainer. While ball bearings can cause a lot of noise, these are relatively quiet. These bearings are the perfect candidates for high-speed applications.
Roller Bearings	Roller bearings in contrast with ball bearings have rolling elements between two annular-shaped metal pieces to carry the load. To be considered a roller, an element needs to have a longer length than its diameter. Roller bearings can carry greater loads without breaking. They have low friction and can be maintained easily. They can take high loads and provide impeccable accuracy. However, they are really expensive and tend to make a lot of noise.
Cylindrical Roller Bearings	These bearings have a simple principle behind their work. Cylindrical roller bearings can be used to facilitate the movement of heavy loads at high speeds. They provide low friction and longevity. The life of these bearings can be increased by employing retainers to keep them in place. They are available in various forms: single, double, and four rows.

Tips for Solve Bearings Questions in GATE ME Exam

Try to remember the uses of various kinds of bearings.
Remember which bearings can carry heavy loads, bearings that make a lot of noise, bearings that support axial loads, bearings that provide longevity, etc.
You will be given case studies and asked to name the most suitable type of bearing in a given situation.

Importance of Bearings in GATE

Practice lots of questions before appearing for the exam as time is an important factor in GATE.
You can learn the tips and tricks of solving bearings questions by solving questions using the tricks.
2-3 marks come from this topic every year.
Do not skip this topic as you can score full marks on this topic.

Most Recommended Books for Bearings for GATE ME

Book Name	Author
Design of Machine Elements	V.B.Bhandari
Design of Machine Elements	K Ganesh Babu and K Srithar

Why Prepare Bearings from BYJU'S Exam Prep?

Bearings is an important topic for a competitive exam like GATE. At BYJU'S Exam Prep, you will get Bearings notes for ME, Bearings study material for GATE ME as well as Bearings MCQ pdf and Bearings online test. We study the historical trend and prepare Bearings GATE questions and answers pdf. With our online tests, you will be prepared to take the GATE exam. Not only that, our notes will help you learn the fundamentals of the topic so that you can solve the hardest questions with ease.

Frequently Asked Questions

Q. What bearings mean?

Answer: Bearings can be defined as things that support a specific set of motion (restricting freedom). They do it in a system that can be static or dynamic.

Q. What are the types of bearings?

Answer: Bearings come in many types. These are rolling element bearings, ball bearings, deep groove bearings, roller bearings, cylinder roller bearings, etc.

Q. What are bearings used for?

Answer: Bearings are objects that allow for the rotation of automobiles, airplanes, machines, etc.

Q. What is a ball bearing?

Answer: Ball bearings are a row of small balls that function as rolling elements. They are generally kept between two annular-shaped metal pieces called races.

Q. What is the reliability of bearing?

Answer: Bearings provide longevity and low friction.