here you got the explanation of parts of ball bearing ,application of ball bearing,advantage of ball bearing.....etc

1. BALL BEARING

2. INTRODUCTION
• A ball bearing is a type of rolling-element and that
uses balls to maintain the separation between
the bearing races (bearing rings) .
• The purpose of a ball bearing is to reduce rotational
friction and support radial and axial loads.

3. HISTORY
• Although bearings had been developed since ancient
times, the first modern recorded patent on ball bearings
was awarded to Philip Vaughan, a Welsh inventor
and ironmaster who created the first design for a ball
bearing in Carmarthen in 1794. His was the first modern
ball-bearing design, with the ball running along a groove
in the axle assembly.

4. HISTORY
• Jules Suriray, a Parisian bicycle mechanic, designed the
first radial style ball bearing in 1869, which was then
fitted to the winning bicycle ridden by James Moore in
the world's first bicycle road race, Paris-Rouen, in
November 1869.

5. First inventor of ball bearing
• PHILIP VAUGHAN
( FIRST INVENATOR
OF BALL BEARING)
IN 1794

6. MATERIAL OF BALL BEARING
Mainly used:-
1. Stainless steel
2. Chrome steel, and
3. Ceramic.

7. Parts of ball bearing :-
The four basic parts of ball bearing are,
1. Ball
2. Inner ring
3. Outer ring
4. Cage

8. Parts of ball bearing :-

9. •1. Inner ring:-
The Inner Ring is the smaller
of the two bearing rings. Inner
ring has a groove on its outer
diameter to form a pathway
for the balls. The surface of
outside diameter path is
finished to extremely tight
tolerances and is honed to a
very smooth. The inner ring is
mounted on the shaft and it is
the rotating element.

10. •2. Outer ring:-
The Outer Ring is the larger
of the two bearing rings. On
outer ring there is a groove
on its inside diameter to
form a pathway for the balls.
Outer ring surface also has
the same high precision
finish of the inner ring. The
outer ring is usually held
stationery.

11. •3. Ball :-
Balls of a bearing are the rolling elements that
separate the inner ring and outer ring and
permit the bearing to rotate with minimal
friction. The radius of the ball is made slightly
smaller than the grooved ball track on the
inner and outer rings. This makes the balls to
contact the rings at a single point. Ball
dimensions are controlled to very high
accuracy. Ball roundness, surface finish and
size variations are important attributes. These
attributes are controlled to a micro inch level.

12. •4. Cage:-
The purpose of the cage in
ball bearing is to separate the
balls, maintaining constant
spacing between the inner and
outer rings, to accurately guide
the balls in the path during
rotation and to prevent the
balls of bearing from falling
out.

13. Advantage of ball bearing
• 1. Low starting and running friction except at very high speeds.
• 2. Ability to withstand momentary shock loads.
• 3. Accuracy of shaft alignment.
• 4. Low cost of maintenance, as no lubrication is required while in service.
• 5. Small overall dimensions.
• 6. Reliability of service.
• 7. Easy to mount

14. Thank you
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