Paired Granite V-block

Product features:

This granite V-block adopts integral fine grinding processing, with a smooth and dense V-shaped working surface, which can fit tightly with cylindrical workpieces of different diameters, ensuring stable positioning and accurate measurement data. The V-angle accuracy reaches 90°±2″, and the parallelism between the two V-blocks reaches Grade 00 standard, ensuring consistent positioning accuracy of each paired product. The surface roughness reaches Ra≤0.1μm, which can reduce the wear of the workpiece during clamping and avoid scratch damage to the surface of precision workpieces such as bearings and shafts. It has good temperature adaptability, with stable performance in the temperature range of -20℃ to 60℃, suitable for most industrial workshop environments. Each paired product has passed strict calibration and testing, with traceable measurement certificates.

Product specifications:

Standard specification range: 50*50*50mm, 100*60*60mm, 200*80*80mm, 300*100*100mm, 500*150*150mm; Custom size support: acceptable; V-angle: 90° standard, other angles can be customized; Parallelism accuracy: Grade 00: 1μm per 100mm; Surface roughness: Ra≤0.1μm; Hardness: HRC66; Load-bearing capacity: ≥300kg per pair; Magnetic property: Non-magnetic; Temperature adaptability: -20℃~60℃; Material: Natural high-purity granite; Certifications: CMA, ISO9001; Packing: Individual plastic bag + wooden box.

Product application:

This paired granite V-block is mainly used in shaft parts processing, bearing assembly, aerospace parts testing, coordinate measuring machine positioning and other scenarios. In the shaft processing industry, it is used to clamp and position cylindrical shafts for turning and grinding processing; in the bearing manufacturing industry, it is used to detect the roundness and coaxiality of bearing inner and outer rings; in the aerospace industry, it is used to position precision cylindrical parts such as engine shafts. It is an indispensable auxiliary measuring tool for improving the positioning accuracy of cylindrical workpieces in precision machining.