The smooth rings for shafts and internal measuring instrument zeroing are high-precision devices designed to ensure accurate dimensional control of mechanical components, particularly for shaft control and the zeroing of measuring instruments. Made from high-quality heat-treated steel, these rings comply with DIN 2250 form C for diameters up to 200 mm, offering precision up to Ø200 according to DIN 286 or JS 3 specifications. For diameters larger than 200 mm, the precision reaches DIN 286 or JS 4, ensuring reliable and high-quality measurement results.

The hardness of these rings is 58 HRC ±2 HRC, which gives them optimal wear resistance, ensuring long durability and consistent performance over time. Each ring is laser-engraved with the exact millesimal measurement, providing full traceability to ensure measurements are always accurate.

These rings are applied in various industrial sectors where precise and reliable measurements are required. Key sectors of use include precision mechanics, machinery production, automotive, aerospace, and industrial device manufacturing. They are mainly used by technicians, operators, and engineers during the production process and quality control, to measure and zero measuring instruments and verify tolerances on shafts and other mechanical components.

The use of these rings is simple and effective. They are employed for internal dimensional control, such as verifying the tolerances of shafts, where the ring is used to ensure the external diameter of the shaft meets the required standards. Additionally, the zeroing rings are used to calibrate measuring instruments, ensuring the precision and correctness of readings during the measuring process. The laser engraving on the ring's surface allows for easy identification of the exact dimensions, improving the speed and reliability of measuring operations.

Upon request, Accredia certification and calibration reports are available, providing assurance that the instruments are accurately calibrated and comply with international quality standards, making them ideal for applications in industrial environments that require high-precision measurements.

Shaft rings and internal measuring instrument zeroing rings are essential for ensuring precise and reliable measurements, reducing the margin of error, and improving the quality of finished products in numerous industrial sectors.