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A magnetic bearing. A magnetic bearing is a type of bearing that supports a load using magnetic levitation. Magnetic bearings support moving parts without physical contact. For instance, they are able to levitate a rotating shaft and permit relative motion with very low friction and no mechanical wear. Magnetic bearings support the highest ...
The typical lifespan of a ball bearing fan may be over 60,000 hours at 50 °C (122 °F). [24] Magnetic bearings or maglev bearings, in which the fan is repelled from the bearing by magnetism. Ceramic bearings are presumed to be more durable, relying on a stable ceramic that has resistance to wear against a stainless steel shaft.
Maglev (derived from magnetic levitation) is a system of transportation that uses magnetic levitation to suspend, guide and propel vehicles with magnets rather than using mechanical methods, such as wheels, axles and bearings. With maglev a vehicle is levitated a short distance away from a guide way using magnets to create both lift and thrust.
A fan clutch is a thermostatic engine cooling fan that can freewheel at low temperatures when cooling is not needed, allowing the engine to warm up faster, relieving unnecessary load on the engine. As temperatures increase, the clutch engages so that the fan is driven by engine power and moves air to cool the engine.
Figure 1: Components of a centrifugal fan An external motor belt driven inline centrifugal fan discharging inline to the exterior of a building through a duct. Unlike non-inline/non-concentric impeller casing design with a cutoff blade above, the concentrically symetric cylinder casing and impeller geometry of inline type redirects the outflow around so that it is parallel to the inflow of gases.
Maglev hover car, based on Tesla Model X. A hover car is a personal vehicle that flies at a constant altitude of up to a few meters (yards) above the ground and used for personal transportation in the same way a modern automobile is employed. The concept usually appears in science fiction.
Designed with a cutting-edge waffle sole for better traction, these shoes served as the prototype for future running shoes and are considered ultra-rare and valuable among fans of sports ...
A household electric fan A large cylindrical fan. A fan is a powered machine that creates airflow. A fan consists of rotating vanes or blades, generally made of wood, plastic, or metal, which act on the air. The rotating assembly of blades and hub is known as an impeller, rotor, or runner. Usually, it is contained within some form of housing ...