2. CONTENTS
• What is Pneumatic tire and its drawbacks
• What is an Airless tire ?
• Structure of Airless tires
• Working of Airless tires
• Advantages and Disadvantages
• Applications
3. PNEUMATIC TIRES
A pneumatic, or air-filled, tire is made of an air
tight inner core filled with pressured air.
The pressure of the air inside the tire is
greater than atmospheric air pressure.
Cushioning Effect
Presentation title 3
4. DRAWBACKS
Puncture or Blowout.
A blowout at high speeds can lead to
a dangerous car accident.
Variations in air pressure changes tire
performance .
Can blow out by gunfire or explosion.
4
5. WHAT IS AIRLESS TIRE
• Airless TIRES or Non-pneumatic
TIRES (NPT) are TIRES that are not
supported by air pressure.
• They can be used on small vehicles
such as ride-on lawn mowers and
motorized golf carts.
• They also are used on heavy
equipment required to operate on sites
where risk of tire punctures is high
• This is also known as TWEEL , which
comes by combination of the words
TIRE AND WHEEL
• This was first developed in 2005 by
MICHELIN
7. WORKING
• The flexible treads and shear bands
deform temporarily as the spokes bend,
then quickly go back to initial shape.
• Tires composed of closed-cell
polyurethane foam are also made for
bicycles and wheelchairs.
8.
9. ADVANTAGES
• Eliminates air leaks or tire blow
outs.
• No maintenance required.
• Facilitate recycling.
• Remains movable even with
some of the spokes are
damaged or missing.
• Durability & Long Life.
• Less environmental impact.
10. DISADVANTAGES
• Lack of adjustability.
• Vibration.
• Different Manufacturing technique .
• Not as economic as pneumatic tires .
11. APPLICATIONS
Used on some small vehicles such as mowers and riding pawn motorized golf carts
In backhoe or bulldozers
