Renishaw A-5000-7553 Cmm Ball Stylus 5mm M4 Ruby

Product Description

The RENISHAW A-5000-7553 is a CMM ball stylus designed for use with coordinate measuring machines in dimensional inspection and metrology applications. It features a 5 mm ruby ball tip mounted on a stainless steel stem with an M4 thread connection and an overall length of 18 mm (approximately 0.71 inches). The ruby ball provides consistent hardness and wear resistance, supporting repeatable contact measurements across high-cycle inspection routines. This stylus is installed and serviced by metrology technicians and quality assurance professionals working with CMM equipment in manufacturing, tooling, and inspection environments.

This stylus is suited for use in both production floor and laboratory CMM setups where tight dimensional tolerances are required. The M4 threaded connection is a common interface on a wide range of CMM probe bodies. The 18 mm overall length and 5 mm ball diameter make this configuration appropriate for general-purpose feature measurement, including bores, slots, and surface profiles on small to medium-sized workpieces.

Key Features

• 5 mm ruby ball tip for consistent hardness and wear resistance
• Stainless steel stem for rigidity and corrosion resistance
• M4 threaded connection compatible with standard CMM probe bodies
• 18 mm overall length suits general-purpose dimensional inspection
• Ruby point material supports high-cycle repeatability

Compatibility

Designed as an OEM-style replacement or service stylus for CMM probe bodies using the M4 thread interface.

Installation Notes

CMM styli are installed and replaced by metrology technicians or quality control personnel. Before replacing a stylus, power down or park the CMM probe head per the machine manufacturer's procedure to prevent accidental trigger or damage. Thread the stylus into the probe body by hand until snug, taking care not to overtighten, which can stress the ruby ball joint. Recalibrate the probe qualification sphere after any stylus change to ensure measurement accuracy.