An essential part of almost all industrial applications, ranging from motors to generators to conveyor systems is bearings. They are important components that help in reducing friction between two or more moving parts, support loads, and thus allow machinery to operate smoothly and efficiently. In this article, we will see the importance of bearings in industrial applications: how they work and where they are used. Keep reading on to find out how ball bearings work and where different types of bearings are used.
How Do Bearings Work?
The basic concept behind a bearing is very simple. It is made of two parts – an outer race and an inner race, where races are basically coverings. Between the two races are the rolling elements, such as balls or rollers, which play the key part in a bearing. They help to reduce friction and wear on the parts of the tools or machinery. A cage or retainer holds the rolling elements in place, evenly spaced, thus ensuring that they themselves do not rub against each other.
What Are The Different Types Of Bearing And Where Are They Used?
Bearings come in many different shapes and sizes. The type of bearing used depends on the application it is being used for specifically. Ball bearings, roller bearings, thrust bearings, pillow block bearings and sleeve bearings are the most common types of bearings we see. Let us now understand the mechanism behind each type of bearing on a deeper level and see where they are used. Keep reading to find out!
Ball Bearings
Being the most common type of bearings, ball bearings are used in a wide range of applications, right from small motors to large machines. Steel or ceramic is usually used to make them, and a small set of balls roll between their inner and outer races. A cage or retainer holds the balls in place, evenly spaced, and prevents them from rubbing against each other.
Roller Bearings
While ball bearings have a small set of balls between the inner and outer races to prevent friction, roller bearings, on the other hand, consist of cylindrical or tapered rollers to support loads and reduce friction. Roller bearings are often used in applications where heavy loads or goods need to be supported, like in the construction industry, or in large machinery.
Thrust Bearings
The kind of bearing that first comes to mind while discussing handling axial loads is thrust bearings. Axial loads basically mean loads that are parallel to the shaft, or concurrent to the longitudinal direction. Thrust bearings consist of two washers and a set of rolling elements, which, again, can be balls, or cylindrical rollers. They are often used in applications involving a lot of axial force, such as car transmissions, or large wind turbines.
Pillow Block Bearings
Pillow block bearings are mounted in housings, often used in conveyor systems and other such applications, where the bearing needs to be fixed in a particular place. This concept is seen in conveyor belts at airports that transport luggage from the plane cargo to the luggage pick-up area. A bearing mounted in a housing, typically made from cast iron or steel forms a pillow block bearing.
Sleeve Bearings
Sleeve bearings are another common, but not so widely known type of bearings. They are usually equipped in applications where low speed and low friction are the key requirements. A cylindrical sleeve is used to support the shaft, which is often made from materials such as bronze or plastic.
Conclusion
Overall, bearings are extremely essential components in many industrial applications. They play a critical role in ensuring the smooth and efficient running of machinery and equipment. By minimising such a small thing as friction, and supporting loads, bearings go a long way by helping in extending the life of machinery and reducing the need for maintenance and repairs.
Engineers and technicians can choose the right bearing for their specific needs and ensure that their machinery operates smoothly and efficiently by understanding the different types of bearings and their applications. In this article, we covered the importance of bearings in industrial applications: how they work and where they are used along with the different types of bearings as well as their structure. Keep following us for more such interesting articles!
