Renishaw A-5000-7648 Cmm Ball Stylus 5mm Ruby M3

Product Description

The RENISHAW A-5000-7648 is a CMM ball stylus designed for coordinate measuring machine applications requiring precise, repeatable point contact. It features a 5 mm ruby ball tip mounted on a stainless steel stem with an M3 thread interface. The overall length is 31 mm (approximately 1.22 inches), and the stem diameter is 3.5 mm (approximately 0.14 inches). Ruby is the preferred ball material in metrology because of its hardness, low adhesion, and dimensional consistency. This stylus is installed by metrology technicians and CMM operators in quality control and inspection environments.

The A-5000-7648 is suited for use in dimensional inspection on CMM systems that accept M3 threaded styli. It is appropriate for both single-stylus configurations and as part of a stylus rack or extension assembly. Typical applications include feature measurement on machined components, gauging of bores and surfaces, and incoming or in-process quality inspection in manufacturing facilities. Its compact 31 mm overall length suits tight-clearance measurement scenarios where a longer stylus would create excessive deflection or collision risk.

Key Features

• 5 mm ruby ball tip for high hardness and dimensional stability
• M3 thread interface for compatibility with standard CMM stylus systems
• 31 mm overall length suits tight-clearance inspection applications
• 3.5 mm diameter stainless steel stem provides rigidity with low mass
• Ruby point material minimizes wear and adhesion during repeated probing cycles

Compatibility

Designed as an OEM-style replacement or standard-configuration stylus for CMM systems accepting M3 threaded styli.

Installation Notes

Installation is performed by a qualified metrology technician or CMM operator. Before changing styli, power down or inhibit the CMM probe head to prevent unintended movement. Thread the M3 stylus in by hand first to avoid cross-threading, then tighten to the CMM or extension body according to the system manufacturer's guidance. After installation, perform a qualification routine on the reference sphere before resuming inspection to establish the new stylus tip offset.