Heavy duty rack
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A rack is a special gear with teeth distributed on a strip. Rack is also divided into straight rack and helical rack, which are used in pairs with straight and helical cylindrical gears, respectively; The tooth profile of a rack is a straight line rather than an involute (planar for tooth surfaces), which corresponds to a cylindrical gear with an infinite radius of the indexing circle.
The rack is a strip part that matches the gear. It is equal to a segment of the circumference of a gear with an infinite diameter. A number of teeth are evenly distributed on one side and mesh with the gears, turning rotation into movement, or turning movement into rotation. The rack is a long rack with teeth on one side, which can be considered as a segment of a gear with an infinite diameter.
main features
(1) Because the rack tooth profile is a straight line, each point on the tooth profile has the same pressure angle and is equal to the inclination angle of the tooth profile. This angle is called the tooth shape angle, and the standard value is 20 °.
(2) Any straight line parallel to the tooth crest line has the same pitch and modulus.
(3) The straight line parallel to the tooth crest line and having a tooth thickness equal to the width of the tooth groove is called the graduation line (centerline), which is the reference line for calculating the size of the rack.
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Luoyang Zhongde Machinery Manufacturing Co., Ltd.
Address：No. 128, Wangxiang 1st Road, Ximagou Industrial Park, Gongnong Township, Jianxi District, Luoyang City, Henan Province, China
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