What are Waffle Wheels and OTR Wheels? Waffle wheel is a mechanical device used mainly for resolving the crisis of bridge failure. It is also known as outrigger wheel or simply outrigger. Outrigger wheel is a wheel used for supporting the overloaded bridge. These wheels are composed of materials such as concrete and steel. The use of outrigger wheel is limited to the most extreme cases, used when the bridge has already collapsed or already given way. It is not used as a solution for regular bridge conditions.
The most common use for the OTR wheel is for lifting trucks, aircraft, trains, and vehicles. They are used for lifting and transporting heavy and dangerous loads. OTR wheel is also known as the self-propelled wheel, movement wheel and self-moving wheel. This is because the wheel is able to move from one place to another.
OTR wheels are a modern innovation of waffle wheels. However, it has some similarities with its predecessor. OTR wheels are also designed to support the bridge that is already in crisis of collapse. Instead of using the material made from steel, OTR wheels are more efficient in using a material that is more lightweight, which is concrete. Aside from that, the device is also more efficient in being able to support the weight of the vehicle.
What is the difference between Waffle Wheel and OTR Wheel? Like its name implies, OTR wheel is designed to be permanently attached to the bridge. It is installed into the bridge during the initial stages of its construction. On the other hand, waffle wheel is used in case of emergency only. It is placed on the bridge after it has been damaged by a vehicle.