Rolling Contact Bearing presentation

1. JSPM’S RAJARSHI SHAHU COLLEGE OF ENGINEERING
MACHINE DESIGN SEMINAR
TOPIC:- ROLLING CONTACT BEARING
1) PRUTHVIRAJ RAM CHAVAN (ME3302)
2) BHARAT SHANKAR BAVISKAR (ME3301)
3) RUPESH RAMDAS DHULE (ME3303)

2. INTRODUCTION
 The term rolling contact bearings encompasses a wide
variety of bearings that use spherical balls or some type of
roller between the stationary and moving elements.
 The most common type of bearing supports a rotating shaft
resisting a combination of radial and axial (or thrust) loads.

3. TYPES OF ROLLING CONTACT BEARING
 Axial bearings.
 Angular contact bearings.
 Deep groove ball bearing.
 Self-aligning ball bearings.
 High speed angular contact ball bearings.

4. CONSTRUCTION
 A rolling contact bearing consists of four parts - inner and outer races, a
rolling elementsuch as ball, roller, or needle, and a cage which holds the
rolling elementtogether and are equispaced around the periphery of the
shaft.

5. ADVANTAGES
 Low starting and running friction except at very high speeds.
 Ability to withstand momentary shock loads.
 Accuracy of shaft alignment.
 Low cost of maintenance, as no lubrication is required while in
service.
 Small overall dimensions.
 Reliability of service.
 Easy to mount and erect.

6. DISADVANTAGES
 More noisy at very high speeds.
 Low resistance to shock loading.
 More initial cost.
 Design of bearing housing complicated. Related posts:

7. APPLICATION
 Some of the widely used applications of roller bearings are aviation
cargo systems, engines, agriculture industry, heavy equipments and
machinery, solar panels, medical equipments, automobile industry,
power houses and many others.
 The purpose of a bearing is to support a load while permitting relative
motion betweentwo elements of a machine
 The term rolling contact bearings refers to the wide variety of bearings
that use spherical balls or some other type of roller between the
stationary and the moving elements.

8. CONCLUSION
 Studied general information about helical gear and it’s
terminology.
 Advantages over the spur gear.
 Fractographic features indicated that fatigue was the main failure
case.
 Misalignment was observed which has caused failure.
 Formation of destructure pitting and spalling at one end was due to
load concentration at that area.

9. THANK YOU