Renishaw A-5000-7606 Cmm Ball Stylus 4mm M3 Ruby Point

Product Description

The RENISHAW A-5000-7606 is a CMM ball stylus designed for coordinate measuring machine applications requiring precise, repeatable contact measurement. The stylus features a 4 mm ruby ball tip mounted on a stainless steel stem with an M3 thread interface. Overall length is 21 mm, with an effective working length of 17.20 mm and a stem diameter of 2.50 mm. Ruby is the preferred ball material for CMM styli due to its hardness, dimensional stability, and resistance to wear. This stylus is installed by metrology technicians and quality control professionals in manufacturing, inspection, and dimensional verification environments.

The A-5000-7606 is suited for use in touch-trigger and scanning CMM probe heads that accept M3-threaded styli. It fits typical residential and light industrial inspection setups where a compact, short-reach stylus is required. Applications include part feature inspection, bore measurement, and surface profiling on coordinate measuring machines. The short overall length of 21 mm makes it appropriate for shallow-feature access where longer styli would introduce excessive deflection or clearance issues.

Key Features

• 4 mm ruby ball tip for wear resistance and dimensional stability
• M3 threaded connection for compatibility with standard CMM probe heads
• 21 mm overall length with 17.20 mm effective working length
• 2.50 mm stainless steel stem balances rigidity with low mass
• Stainless steel stem material resists corrosion in shop environments

Compatibility

Designed as an OEM-style replacement or standard stylus for CMM probe heads accepting M3-threaded ball styli.

Installation Notes

CMM styli are installed by metrology technicians following the CMM manufacturer's recommended stylus change procedure. Power down or pause the CMM and ensure the probe head is in a safe, parked position before changing styli. Use the manufacturer-specified torque procedure for M3 stylus threads to avoid damaging the probe head or stylus shank. Avoid touching the ruby ball with bare hands, as skin oils can affect measurement accuracy.