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Bollard pull is a conventional measure of the pulling (or towing) power of a watercraft.It is defined as the force (usually in tonnes-force or kilonewtons (kN)) exerted by a vessel under full power, on a shore-mounted bollard through a tow-line, commonly measured in a practical test (but sometimes simulated) under test conditions that include calm water, no tide, level trim, and sufficient ...
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Regal Rexnord Corporation is a manufacturer of electric motors and power transmission components based in Milwaukee, Wisconsin. The company has manufacturing, sales, and service facilities throughout the United States, Canada , Mexico , Europe and Asia , with about 29,000 employees.
By 1913 annual sales reached $1 million. At that time the company's products were organized into three major divisions: chain products for power transmission; chain-driven construction machinery; and chain-powered bulk conveying equipment. In 1914 it introduced the Rex brand-name, which was first used on a chain-driven concrete mixer.
The mechanical advantage would equal the ratio of chain link pairs required for each revolution to the net gain of chain link pairs. Put another way, the mechanical advantage would be the distance of pull required for each unit distance of gain. The mechanical advantage at the differential sprocket pair equals P 1 / P 1 − P 2 .
Rexnord Corporation is a Milwaukee, Wisconsin-based subsidiary of Regal Rexnord Corporation. It was founded in 1891 by Christopher Levalley and incorporated in 1892 as the Chain Belt Company . It had $67.5 million in profit and $1.9 billion in sales in 2016. [ 1 ]
A block and tackle [1] [2] or only tackle [3] is a system of two or more pulleys with a rope or cable threaded between them, usually used to lift heavy loads.. The pulleys are assembled to form blocks and then blocks are paired so that one is fixed and one moves with the load.
Tolerance analysis is the general term for activities related to the study of accumulated variation in mechanical parts and assemblies. Its methods may be used on other types of systems subject to accumulated variation, such as mechanical and electrical systems.