Various Components of the Tyres

• Tread

• Breaker

 

• Casing

• Side walls

• Beads

 

 

Tread:

   

• The shoulder to shoulder width of the tyre represents the tread 

 

• Natural rubber as well as synthetic rubber is  used 

 

• The natural rubber helps the tyre to stay cooler during running

 

Breaker:

 

 • The two top plies of the tyre are referred  as breakers 

 

 • They are widely spaced as compared to other plies 

 

 • These plies help in spreading the shocks received from the road

 

Casing:

   

• The tyre casings are made up of layers of cord impregnated with rubber 

 

• The number of layers of cord varies according to the use of Tyre 

 

• Motor car tyres usually have 4 to 6 plies 

 

• Heavy-duty truck and bus tyres may have up to 22 plies 

 

• Earth moving machinery the tyres may have up to 34 plies 

Side wall:

   

• The side wall consists of rubber compound 

 

• Which serve as protective covering to the casing 

 

• A tyre may have a black or white side wall 

 

• Both the side walls have the same performance 

 

Beads:

   

• Coil of wire represent the beads 

 

• These wires are of high-tensile steel 

 

• Which are built in the edge of the tyre 

 

• Give strong edges to press against the inner edge of the rim