The purpose of the shaft is to convert energy from the motor into the end use application.
BS 4506 is a British Standard that relates to:
BS 4506 applies to shaft ends having a conicity of 1 in 10; both types in diameters from 6 mm to 630 mm inclusive.
In BS 4506, provision is made for long and short series of both cylindrical and conical shafts over most of the diameter range and for the use of both external and internal screw threads for the securing nut or bolt on conical shaft ends.
BS 4506 on the specification for shaft ends is useful for:
Shafts transmit power from one rotating member to another supported by it or connected to it.
BS 4506 gives you the specification for shaft ends with details such as the relation between forms as well as dimensions and tolerances.
Relevant principal dimensions of keys and keyways and external and internal threads are provided in BS 4506.
Diagrams provided in BS 4506 illustrate the relationship between forms as well as conicity.
Using BS 4506 guidelines, you demonstrate compliance with best practices and manufacture high-quality products for your customers.