Industrial Bearings

These are the machines which carry a load by placing round elements between the two pieces. The relative motion of the pieces causes the elements to roll with little amount of sliding.
Rolling-element bearings have the advantage in terms of cost, size, weight, carrying capacity, durability, accuracy, friction, and so on. Other bearing designs are often better on one specific attribute, but worse in most other attributes. There fore, roller bearings should be chosen according to the requirement of the industry.