Keys and couplings

Shaft keys and couplings quickly became the new standard in the field of shaft connections. This technology allows users to transmit high torque between two shafts. Using only hand tools, it can be installed and removed quickly and easily, and thermal work and hydraulic pressure are not required. This chapter aims to study the types of shaft keys and couplings in mechanical applications; it covers the full design of several types of keys and couplings, along with examples and solved/unsolved problems. The chapter analyzes forces and stresses on keys, including rectangular and square keys, gib-head keys, feather keys, and woodruff keys, and couplings such as clamp or compression couplings and flange couplings. This chapter can be used as teaching material for courses in machine design for mechanical and industrial engineering majors in colleges and universities, and can also be used as a reference for scientific and technical personnel engaged in scientific and engineering calculations.