The relationship between taper c and taper angle α is: C=2Xtg(α/2).
Morse taper is the international standard of taper, which is used for precise positioning of interference fit. Because the taper is very small, a certain torque can be transmitted by using the friction principle, and it can be easily disassembled because of the taper fit.
Morse taper is divided into long taper and short taper.
Long cones are mostly used for spindle holes of active machine tools, while short cones are used for machine tool accessories and machine tool connecting holes. There are six kinds of Morse short cones: B 10, B 12, B 16, B 18, B22, B24, which are shortened according to the number of Morse long cones 1 2, 3. For example, B 10 and B 12 are the dimension ends of Morse tape measure. The short tapered holes of 1, B 16 are usually used for common machine tool accessories, according to the size and required transmission torque, such as common drill chuck 1- 13mm.
Refer to the above content: Baidu Encyclopedia-Mohs Taper