bus suspension guide - why the suspension
system used on a bus is so important 
Bus Suspension Issues
Bus suspension systems must be designed and built with the drivers, passengers and safety of pedestrians in mind from the very start. A manufacturer that does not take all these into consideration is doomed to create less than ample suspension setup.
It has been proven that air ride suspension systems improve performance and handling, makes the axles last much longer, and safeguards the brakes and body of the bus from excessive stress. Lmost every single componenen fo the bus will fair better with a sound susepension in place. The chassis, structural components, and the body last much longer due to less chassis vibrations when the bus is running with a great suspension system. You will a lot less mysteerious electrical system fuilures from boken wires, chafed lines, and borken connectors as well. Even the air conditioning and other sensitive areas of the bus that you might not realize are affected.
3 major types of suspensions used on transit buses and motorcoaches include: mechanical bus suspension systems that use metal leaf springs to stabilize handling, air suspension systems with air bladders for a smoother ride, and independent systems allowing each wheel to react separately and individually to road conditions. |
The independent systems are the most complicated, and the most expensive, but they offer the best overall performance according to some experts. Independent suspensions are found on most of the new motorcoaches and seated tour buses. With these sophisticated systems each independent suspension has to be built to match the individual chassis and body of each make and model bus to ensure maximum handling, turning and comfort standards.
Mechanical and air-assisted systems are found on the majority of transit style buses because they are less costly and easier to repair. Many believe that these simpler systems are all that is needed for a transit bus and think independent systems are overkill.
All suspension systems are engineered uniquely for every chassis. Engineers review the axles used when in the initial design phase, they study ride heights and frame and width variables so each suspension, either mechanical, air or independent, ends up being a one of a kind custom solution. There is no way around it.
A well designed and fitted bus suspension system gives the driver more confidence, satisfaction, a better turning radius, better ride, and safer steering. This makes the passengers literally FEEL better with a more stable and steady ride. The fact is, when buying a bus, your suspension system should be inspected and be in proper working condition, should be built by a quality company, and you should make sure you can find replacement parts easily - bus suspension systems are expensive to repair.
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