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In 1910, Kingsbury was awarded US patent No. 947242 for the fluid-film thrust bearing. [6] [7]) Michell bearings contain a number of sector-shaped pads, arranged in a circle around the shaft, and which are free to pivot. These create wedge-shaped films of oil between the pads and a rotating disk on the shaft.
An axlebox, also known as a journal box in North America, is the mechanical subassembly on each end of the axles under a railway wagon, coach or locomotive; it contains bearings and thus transfers the wagon, coach or locomotive weight to the wheels and rails; the bearing design is typically oil-bathed plain bearings on older rolling stock, or roller bearings on newer rolling stock.
Thrust bearings come in several varieties. Thrust ball bearings, composed of bearing balls supported in a ring, can be used in low-thrust applications where there is little axial load. Cylindrical thrust roller bearings consist of small cylindrical rollers arranged flat with their axes pointing to the axis of the bearing. They give very good ...
A stave bearing is a simple journal bearing where a shaft rotates in a bearing housing. Rather than the usual arrangement where the fixed part of the bearing surrounds most of the circumference of the shaft in one or two pieces, a stave bearing uses a large number of axial staves to support the shaft. A large housing is made with grooves ...
Pintle/gudgeon sets have many applications, for example in sailing, to hold the rudder onto the boat; in transportation, in which a pincer-type device clamps through a lunette ring on the tongue of a trailer; and in controllable solid rocket motors, in which a plug moves into and out of the motor throat to control thrust.
The problem can be eliminated by minimising slack spring travel, and by reducing the amount of trailer braking force applied for a given drawbar force. However this results in the towing vehicle bearing some of the trailer braking load, something the towing vehicle is often not designed to do. The result is compromised braking.
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