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A bull wheel is a large, durable wheel used in mechanical systems such as chairlifts and pulley systems. It can provide energy to move other components and can be custom or generically manufactured. Bull wheels can have large teeth or be wrapped with ropes and cables. They are heavy and sturdy, and wheel failure can be catastrophic. People working around bull wheels should exercise caution to avoid crushing injuries. In case of an emergency, the emergency stop should be activated and emergency services called immediately.
A bull wheel is a wheel or main gear in a mechanical system such as a chair lift. It is typically the largest wheel in the system and is very durable. It can provide a source of energy to drive the system, moving other components. The bull wheel design can be seen in a number of settings, ranging from farm equipment to elevators used to maneuver heavy machinery across the factory floor. Depending on the system, the wheel may be custom manufactured for a very specific need or generically manufactured.
In the case of a gear, the bull wheel has large teeth designed to intersect with neighboring gears to move them, powering the system. It can be reinforced to make sure it can bear heavy loads. Other bull wheels are designed as cylinders or wheels wrapped with ropes, cables, and other materials. When the wheel spins, the rope moves and can be used to carry items.
On a device like a chairlift, one bull wheel spins powerfully and another bull wheel, attached to the other end of the wire, spins freely as the wire moves. Chairs attached to the cable are moved up and down a mountainside or over a river or ravine. The same device can be used to move equipment, logs and other items indoors and outdoors.
Bull wheels can also be used on other types of pulley systems in a variety of settings. In all cases, this component of the system is easily spotted due to its large size. It can be centrally located for maximum efficiency and tends to be considerably heavier and sturdier than other system components, as it is subjected to far more stress. A wheel failure could be particularly catastrophic, especially for live systems, and so is installed and maintained with care.
People who work around a bull wheel need to exercise caution. Crushing injuries are possible if body parts get caught in the wheel and are often difficult to stop, making it difficult to act in an emergency. If someone gets caught in the wheel, it is important to resist the temptation to pull the person out, as this could injure the person more and the rescuer could also get caught in the wheel. The emergency stop should be activated and the emergency services called immediately to extract the person and provide appropriate medical assistance.
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