lijnstaaf

Lijnstaaf is a Dutch term that literally translates to line rod or straight line bar. In Dutch technical usage it denotes a slender, straight rod used to align, guide, or connect components along a straight path. The exact meaning varies by field.

In mechanical engineering, a lijnstaaf often refers to a linear guide rod or guide rod. It provides a stable reference or sliding surface for machine components and is used in combination with linear bearings or bushings. These rods are usually manufactured from steel, often with chrome plating for wear resistance or made from stainless steel. Common properties include straightness along the length, surface finish, and straightness tolerances. They are installed parallel to the desired motion axis and are supported at several points to prevent bending. Maintenance includes cleaning, lubrication of bearings, and regular checks for straightness and corrosion.

In metrology or alignment work, a lijnstaaf can function as a datum or reference line. A straight rod can be used to check alignment, runout, or as part of a jig to position components accurately along a line.

Origin and usage vary by industry; the term is not tied to a single standardized specification. When purchasing, it is important to specify diameter, length, material, surface finish, and tolerance requirements.

See also

- line shaft

- linear guide

- datum line

- alignment jig

- straightness tolerance