Spinfäste

Spinfäste is a term used in mechanical engineering to describe mounting or holding fixtures for rotating components such as spindles, shafts or rotors. They are designed to secure these parts in proper alignment, enable effective torque transmission and allow for reliable operation of machine tools and drive systems. A well-designed spinfäste maintains rigidity under load, minimizes movement and vibrations, and supports precision during operation.

Common types of spinfäste include flange mounts, clamp or bearing mounts, and quick-change or quick-release variants. They differ in how the rotating part is attached, the level of alignment accuracy provided, and how easily the component can be replaced or serviced. Flange-based examples connect through bolts to a mating surface, while clamp-based designs use clamping forces to secure the component. Quick-release variants are used where frequent tool changes or rapid maintenance is required.

Materials and finishes for spinfäste are typically chosen for strength, wear resistance and thermal stability. Common choices are steel and stainless steel, with aluminum in lighter-duty applications. Surfaces may be precision-machined and treated (e.g., heat-treated, coated) to reduce wear, improve corrosion resistance and maintain tolerances.

Applications of spinfäste span various sectors, including machine tools such as lathes and milling machines, grinding equipment, CNC routers, and robotic systems. They are also found in drives and transmission assemblies where rotating elements must be held in alignment with high stiffness and predictable behavior. Regular maintenance, proper torque on fasteners, and periodic alignment checks are important to ensure long-term performance.

See also: spindle, fixture, tool holder.