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ABOUT LONGTAI Special Sprocket

Zhejiang Longtian Transmission Machinery Co., Ltd. (Shengzhou City Special Sprocket Co., Ltd.), established in 1992, is a technology-driven joint-stock enterprise specialized in the production of upper and lower drive assemblies and transmission components for escalators. Integrating research, manufacturing, and both international and domestic trade, the company is a strategic supplier to prominent elevator brands such as Schindler, Hitachi, Toshiba, and ThyssenKrupp. It ranks among the top three in China’s sprocket transmission industry.

Chain sprocket or sprocket-wheel is a profiled wheel with teeth, or cogs, that mesh with a chain, track or other perforated or indented material. The name ‘sprocket’ applies generally to any wheel upon which radial projections engage a chain passing over it. It is distinguished from a gear in that sprockets are never meshed together directly, and differs from a pulley in that sprockets have teeth and pulleys are smooth.

Sprockets are used in bicycles, motorcycles, cars, tracked vehicles, and other machinery either to transmit rotary motion between two shafts where gears are unsuitable or to impart linear motion to a track, tape etc. Perhaps the most common form of sprocket may be found in the bicycle, in which the pedal shaft carries a large sprocket-wheel, which drives a chain, which, in turn, drives a small sprocket on the axle of the rear wheel. Early automobiles were also largely driven by sprocket and chain mechanism, a practice largely copied from bicycles.