Classified according to specifications or size, the gear model is divided into standard and non -standard;
Different from domestic and foreign measurement units, gear models are divided into two types: public and British system.
Public gear model
The domestic system is mainly used in public/modulus (M/m), and the number of gear modulus = the diameter of the separation circle ÷ the number of teeth = the outer diameter of the gear ÷ (the number of teeth +2).
The main models of the public gear are: M0.4 m0.5 m0.6 m0.7 m0.75 m0.8 m0.9 m1 M1.25 m1.75 m2 m2.25 m2.75 m3 m3. 3
British gear model
DP gear is a British gear (diameter gear) used in Europe and the United States and other countries. It refers to the number of teeth on the diameter of each inch division of the diameter. The larger the value, the smaller the tooth. Datoma DP = Z/D (Z -tooth number, D -separation circular diameter, inch), with diameter DP unit (1/in). It has the same conversion relationship with public system M = 25.4/dp, which means that it is the same as our commonly used modulus.
The main model of the British gear is: DP1 DP1.25 DP1.5 DP1.75 DP2 DP2.25 DP2.75 DP3 DP4 DP4.5 DP7 DP7 DP8 DP10 DP14 DP16 DP16
