Motorfamilier

Motorfamilier is a term used in engineering contexts to describe a set of motors that share a common design lineage and are marketed or specified as a single family. The concept emphasizes compatibility across variants, including mechanical fit, electrical interfaces, and control strategies, to simplify procurement, maintenance, and lifecycle planning.

A motorfamilier typically includes multiple variants that differ in power rating, speed-torque characteristics, and optional add-ons such as gearheads or brake assemblies, while retaining core attributes such as frame size, shaft configuration, mounting pattern, and electrical connector type.

Key characteristics include the mechanical interface (frame size, bolt pattern, shaft diameter), the electrical interface (supply voltage or current, control signals, encoder type), and the performance envelope (rated torque, speed, efficiency). The motorfamilier may also define allowable operating conditions, thermal limits, and warranty terms.

Usage and benefits: By grouping motors into motorfamilier, manufacturers and users can streamline part numbering, spare parts management, and software calibration. It also supports standardized testing, documentation, and comparative evaluation across variants. Limitations include the potential for variation between variants that slows uniform interchangeability and the need for careful version control to avoid mismatches.

See also: electric motor, brushless DC motor, servo motor, induction motor, gearmotor, motor drive.