Renishaw A-5000-7522 Cmm Ball Stylus 5mm Ruby M4

Product Description

The RENISHAW A-5000-7522 is a CMM ball stylus designed for coordinate measuring machine probing applications. It features a 5 mm ruby ball tip mounted on a stainless steel stem with an M4 threaded shank, and has an overall length of approximately 100 mm (3.94 inches). Ruby is the preferred ball material for CMM styli due to its hardness, dimensional consistency, and resistance to wear during repeated contact measurement cycles. This stylus is installed by metrologists, quality technicians, and precision measurement professionals on CMM probe heads and touch-trigger probe systems.

This stylus is suited for dimensional inspection work in manufacturing and quality control environments. It fits standard M4-threaded CMM probe bodies and extension assemblies, making it compatible with a wide range of touch-trigger and scanning probe setups. Typical applications include part feature verification, bore measurement, surface profiling, and fixture checking on both small and medium-sized workpieces. It is used in both production floor CMM installations and dedicated metrology labs.

Key Features

• 5 mm ruby ball tip for wear resistance and repeatable contact measurement
• M4 threaded shank for secure attachment to compatible CMM probe bodies and extensions
• 100 mm overall length (approximately 3.94 inches) for access to recessed or deep features
• Stainless steel stem for rigidity and corrosion resistance
• Sold individually (quantity of one per package)

Compatibility

Designed as an OEM-style replacement or direct-fit stylus for CMM probe systems accepting M4 threaded ball styli.

Installation Notes

Installation should be performed by a qualified metrologist or CMM technician familiar with probe qualification procedures. The stylus must be threaded in by hand until snug - do not overtighten, as excess torque can damage the probe head seating or alter stylus alignment. After installation, re-qualify the stylus on the CMM using the machine's standard qualification routine before taking measurements. Ensure the probe head is in a safe parked position before changing styli.