Renishaw A-5000-3554 Cmm Ball Stylus 4mm Ruby M3

Product Description

The RENISHAW A-5000-3554 is a CMM ball stylus designed for coordinate measuring machine probing applications. It features a 4 mm ruby ball tip mounted on a stainless steel stem with an M3 threaded shank for secure attachment to compatible CMM probe modules. The ruby contact point provides high hardness and wear resistance, making it well suited for repeated contact scanning and touch-trigger measurement cycles. Overall length is 31 mm, with an effective working length of 27 mm and a stem diameter of 2.5 mm. Metrology technicians and quality control professionals install this stylus as part of a precision measurement setup on manual or CNC-driven CMMs.

This stylus is used in dimensional inspection environments where accurate surface contact measurement is required. Typical applications include part qualification, tolerance verification, and geometric dimensioning checks on machined components. It fits standard M3 stylus coupling systems and is appropriate for both bench-top and bridge-style coordinate measuring machines in toolrooms, quality labs, and production inspection stations.

Key Features

• 4 mm ruby ball tip for high wear resistance and repeatable contact measurement
• M3 thread for compatibility with standard CMM probe stylus holders
• 31 mm overall length with 27 mm effective working length for moderate-reach applications
• 2.5 mm stainless steel stem resists corrosion and provides consistent rigidity
• Compact form factor suits tight-clearance inspection scenarios

Compatibility

Designed as an OEM-style replacement or standard-service stylus for CMM probe systems using M3 threaded stylus interfaces.

Installation Notes

Installation is performed by metrology technicians or quality lab personnel. Power down or place the CMM in a safe parked position before changing stylus assemblies to avoid accidental probe damage. Thread the M3 shank in by hand first, then snug gently with the appropriate stylus wrench - do not overtighten, as excessive torque can damage the ruby ball seating. After installation, perform a stylus qualification routine per your CMM software requirements before taking measurements.