The modulus is the factor that determines the size of the gear.Gear modulus is defined as a basic parameter of modular gear teeth, which is artificially abstracted to measure the scale of gears.The purpose is to standardize gear cutters and reduce costs.The modules of spur, helical and bevel gears can all refer to the specification module series table.
With the continuous progress of industrial development, many customized mass production gears use non-standard modules, which weaken their meaning.
? If the number of teeth of the gear is constant, the larger the modulus, the larger the radial dimension of the wheel.Modulus series specifications are formulated in accordance with the requirements of design, manufacturing and inspection.Regarding gears with non-straight teeth, the modulus has normal modulus mn, end face modulus ms, and axial modulus mx. They are all based on their respective tooth pitch (normal tooth pitch, end face tooth pitch and axial The ratio of the tooth pitch) to the circumference ratio is also in millimeters.aboutBevel gear, Modulus is divided into big-end modulus me, uniform modulus mm and small-end modulus m1.Regarding the tool, there are corresponding tool modulus and so on.The standard modulus is widely used.In metric gear transmissions, worm transmissions, synchronous toothed belt transmissions, ratchets, gear couplings, splines and other parts, the standard modulus is the most fundamental parameter.It plays a fundamental role in the design, manufacture, and maintenance of the above-mentioned parts (see cylindrical gear drive, worm drive, etc.).
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