How to choose the right bearing?

• Posted by Chen Zhixing March 3, 2022 Filed in Business #  #ball bearing  97 views
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  Whatever you do every day, you are likely to come into contact with one (if not many) different devices that use bearings. Because bearings are so important, many different bearing types have been developed for various loads and jobs, so it's vital to make sure you know how to differentiate them to suit your customers' needs.

  What are the different parts of a bearing?

  Due to their rolling motion, bearings are one of the most common machine parts that reduce friction and make movement easier.

  Bearings have two basic functions - they transmit forces and transfer motion. on the other hand, their components usually include the following.

  Outer Race and Inner Race

  These components of a bearing provide the housing for the ball of the bearing. Usually a groove is cut into the inner circumference of the race so that the balls can move freely but remain in place without falling out. The inner ring is located on the inside of the outer ring. The objective of both the outer and inner rings is to keep the ball in the middle position. If the inner and outer rings are subjected to extreme forces, they can easily crack, so it is important to remember that you design them with extremely durable materials.

  High-purity chrome alloy steel is often used for both raceways because it has the required hardness and purity, which is highly sought after for high load ratings and long service life. Other special materials used include ceramics and plastics, depending on the application.

  Roller Elements

  These consist of balls, rollers, cones, spheres or pins. As we have discussed before, they are fixed between the inner and outer ring, allowing them to rotate freely. These components are vital because without them, friction between the seats would quickly damage and destroy the bearing.

  Shield

  The main purpose of a bearing shield is to seal the bearing to prevent harmful contaminants such as dust from entering where critical components are located and to keep the bearing lubricant in place for a longer period of time. If dust or other contaminants get inside, or if lubricant leaks out, it can quickly damage other components due to friction and corrosion.

  These components are essential for extending the life of the bearing.

  

  How to Choose Between Ball Bearing and Cylindrical Bearing?

  Ball Bearing

  A ball bearing is a rolling bearing that uses balls to keep moving parts apart.

  Compared to other bearings of this type, these bearings are the cheapest and are suitable for a wide range of applications with relatively low loads, from sliding plates to electric drills.

  Advantages: low cost, compact, most widely used

  Disadvantages: only supports medium axial loads

  Cylindrical Ball Bearing

  Several different types of cylindrical roller bearings are available on the market. They vary according to the number of rows of rollers (usually one, two or four) and whether they have a cage. The absence of a cage allows the bearing to have more columns, which helps to support heavier radial loads.

  Advantages: long bearing life, supports significant radial loads, robust

  Disadvantages: If the bearing does not have a cage, it cannot withstand high speeds

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