时间：2015-09-23 18:47　作者：admin　点击： 次

The modulus is a factor that determines the size of the tooth.Gear modulus is defined as a basic parameter of modular gear teeth, which is artificially abstracted to measure the scale of gear teeth.The purpose is to standardize gear cutters and reduce costs.The modules of spur, helical and bevel gears can all refer to the standard module series table.
    If the number of teeth of the gear is constant, the larger the modulus, the larger the radial dimension of the wheel.Modulus series standards are formulated in accordance with the requirements of design, manufacturing and inspection.For gears with non-straight teeth, the modulus has the difference between 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 pitch and shaft The ratio of the tooth pitch to the circumference ratio is also measured in millimeters.For bevel gears, the modulus is divided into large-end modulus me, average modulus mm and small-end modulus m1.For tools, there are corresponding tool modulus mo and so on.The standard modulus is widely used.In metric gear drives, worm drives, synchronous toothed belt drives, ratchets, gear couplings, splines and other parts, the standard modulus is the most basic parameter.It plays the role of basic parameters for the design, manufacture and maintenance of the above-mentioned parts (see cylindrical gear drive, worm drive, etc.).