Classification of Machine Tool Guideways—Linear Roller Guideways
A linear roller guideway system combines a flat guideway with a linear roller guideway. Rollers are mounted on parallel guideways, with the rollers replacing steel balls to support the machine tool
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s moving components. The advantages include a large contact area, high load-carrying capacity, and high sensitivity. Viewed from the rear of the machine bed, the support brackets and rollers are positioned on the top and sides of the flat guideways. To achieve high precision, a wedge plate is installed between the machine tool
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s working components and the inner surface of the support brackets, applying a preload to the sides of the brackets. The wedge plate functions similarly to a shim; the weight of the working components acts on the top surface of the support brackets. Since the preload applied to the guideway system is adjustable, losses in the wedge plate are compensated for. This feature is widely used in medium- and large-sized machine tools because it responds sensitively to CNC commands, withstands heavy loads, and allows linear roller guideway systems to operate at higher speeds than traditional flat guideways, thereby improving machine tool performance.
Brass part turning
