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Rolling contact bearings are also called anti-friction bearing due to its low friction characteristics. These bearings are used for radial load, thrust load and combination of thrust and radial load. These bearings are extensively used due to its relatively lower price, being almost maintenance free and for its operational ease. | Module 14 Brief overview of bearings Version 2 ME IIT Kharagpur Lesson 2 Rolling contact bearings Version 2 ME IIT Kharagpur Instructional Objectives At the end of this lesson the students should be able to understand About rolling contact bearings Ball bearing and roller bearing Basics definitions of design parameters of rolling contact bearings Selection method for rolling contact bearings 14.2.1 Rolling contact bearing Rolling contact bearings are also called anti-friction bearing due to its low friction characteristics. These bearings are used for radial load thrust load and combination of thrust and radial load. These bearings are extensively used due to its relatively lower price being almost maintenance free and for its operational ease. However friction increases at high speeds for rolling contact bearings and it may be noisy while running. These bearings are of two types Ball bearing and Roller bearing 14.2.2 Ball bearing A typical ball bearing is shown the Fig.14.2.1. The figure shown on the right side with nomenclature is the schematic representation of the actual bearing. Inner diameter d Steel balls Outer diameter D Retainer Fig.14.2.1 A typical ball bearing Version 2 ME IIT .