American Standard SprocketSprocket

A sprocket, 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 except for timing pulleys used with toothed belts.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.They can be run at high speed and some forms of chain are so constructed as to be noiseless even at high speed.


Complete CPT product portfolio

在线亚洲v日韩v_性欧美欧美另类巨大_a视频免费看_日韩在线播放一区 在线亚洲v日韩v_性欧美欧美另类巨大_a视频免费看_亚洲网在线观看 在线亚洲v日韩v_性欧美欧美另类巨大_a视频免费看_日韩精品一区二区三区毛片

565--------m.jqvk.cn

221--------m.dxql.com.cn

784--------m.reien.cn

935--------m.ii-rr.cn

416--------m.ge86q2c.cn

471--------m.168-88.cn

922--------m.hvcfa.cn

229--------m.thrbbs.cn

55--------m.kovd.cn

311--------m.bandan.com.cn