You probably would have come across the term, “bearings” in your daily life. Very often, when a home appliance like the water motor or a ceiling fan breaks down, the electrician would blame the cause of failure on a faulty bearing. But, have you ever wondered, what bearings are? What do they do? And, why are bearings so important in all appliances.
In this guide, we introduce bearings in a fun way. No technical terms or complicated jargon. With simple terms, we explain bearings so that the next time when a bearing fails, you get a better idea of what’s wrong and why it went wrong.
Bearings are a fundamental mechanical part using in majority of appliances and equipment. They are key to the machine industry that they are often referred to as the bread and butter of machines.
“A bearing is a mechanical part that enables rotational/linear movement, while reducing friction between the moving parts.”
Bearings can be attached to a casting like in the ends of an electric motor, or separated from a casting like a pillow block or plate. Bearings are found in all machines like electric generators, motors, airplanes, automobiles, etc. They are present in almost all household appliances like vacuum cleaners, air conditioners, refrigerators, ceiling fans, etc.
Bearings support the parts that enable rotation like the shaft inside a machinery. They support rotors, gears, turbines, wheels, etc., helping the machine rotate more smoothly.
Bearing play two major roles in a machine. They are:
When two rotating parts come in contact with each other, friction happens. Bearings help in reducing the friction between the rotating shaft and the part that assists rotation. It paves the way for smoother rotation, reducing the energy consumed by the machine. As a result of reduced friction, wear and tear is reduced, helping to extend the lifespan of the machine.
To ensure proper rotation, a large amount of force is required between the rotating shaft and the part that supports rotation. Bearings help in preventing damage to the supporting part due to the force generated. It also helps in maintaining the correct position of the rotating shaft.
The two major functions of bearings help us to use our appliances, equipment and machinery for years to come without wear and tear.
Bearings can be classified into two primary categories:
Ball bearings use balls as the rolling elements.
These bearings are classified into:
They have a line contact instead of using balls as contact. The line contact makes it suitable to carry higher load ratings that ball bearings of the same size. However, the speed of roller bearings is lower than the ball bearing due to increased friction along the contact line.
Roller bearings are classified into:
Bearings are used in almost all appliances. From small remote controlled toy cars to large automobiles, household appliances to massive industrial equipment, bearings are used in all machinery. To give an example, the average sedan has over 150 bearings to ensure smooth operation.
If there were no bearings,
Though bearings may seem like a minor component, they play a crucial role in all machinery. This is why, companies spend millions of rupees on developing new bearings that are more durable and precise.
If you are looking for industrial bearings of high quality, get in touch with EuroIndustriel. As the leading bearings supplier and distributor, we have a huge network of bearings manufacturers. We help you find the right sized and right type bearings, as per your custom requirements. Give us a ring and let’s get started.