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THE crown gear OR THE concrate gear ARE A PATICULAR FORM OF THE bevel gears WHOSE TEETH PROJECT AT RIGHT ANGLES TO THE PLANE OF THE WHEEL; IN THEIR ORIENTATION THE TEETH RESEMBLE THE POINTS ON A crown.

GEARS,GEARS,AND MORE GEARS

DESCRIPTION

Conclusion

THERE ARE MANY TYPES OF gears LIKE THE spur,helical,rack and pinion,bevel,worm,crown,etc. THESE GEARS HAVE MADE OUR LIVES MUCH MORE SIMPLER,THAN IT EVER WAS. THIS IS BECAUSE WE USE THEM IN ALL TYPES OF ELECTRICAL DEVICES. eg.- ipads,computers,cars,televisions,etc.

THANKYOU TO SEE MY FIRST PREZI ON gears !!!

BEVEL GEARS

A bevel gear IS SHAPED LIKE A RIGHT CIRCULAR CONE WITH MOST OF ITS TIP CUT OFF.WHEN TWO bevel gears MESH, THEIR IMAGINARY VERTICES OCCUPY THE SAME POINT.

THE CROWN GEARS

SPIRAL BEVELS

spiral bevel gears HAVE THE SAME ADVANTAGES AND DISADVANTAGES RELATIVE TO THEIR STRAIGHT CUT COUSINS AS helical gears do to spur gears. straight bevel gears ARE GENERALLY USED ONLY AT SPEEDS BELOW 5m/s.

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