Renishaw A-5000-3712 Cmm Ball Stylus 6mm M4 Ruby Tip

Product Description

The RENISHAW A-5000-3712 is a CMM ball stylus designed for use with coordinate measuring machines in precision metrology applications. It features a 6 mm ruby ball tip mounted on a ceramic stem, with an M4 threaded shank for secure attachment to CMM probe heads and extension components. The overall assembly length is 100 mm. Ruby is the standard material choice for CMM styli due to its hardness and dimensional stability, and the ceramic stem provides a lightweight, thermally stable shaft that minimizes deflection during probing cycles. This stylus is installed and serviced by metrology technicians and quality control professionals.

This stylus is suited for dimensional inspection of workpieces in manufacturing, tooling, and quality assurance environments. The M4 thread is a common interface found on a wide range of CMM probe bodies and stylus extension systems. The 100 mm overall length allows reach into recessed features or deeper bores where shorter styli cannot access. It is appropriate for both single-point touch-trigger probing and applications requiring consistent, repeatable contact measurement across production or inspection runs.

Key Features

• 6 mm ruby ball tip for hardness, wear resistance, and dimensional consistency
• Ceramic stem construction reduces mass and minimizes thermal growth during use
• 100 mm overall length provides reach for recessed or deep-feature inspection
• M4 threaded shank interfaces with standard CMM probe heads and extension bars
• Lightweight assembly helps preserve probe trigger force accuracy

Compatibility

Designed as an OEM-style replacement or direct-fit stylus for CMM probe systems accepting M4 thread connections. Consult your CMM probe documentation to confirm thread interface and stylus length requirements before installation.

Installation Notes

CMM styli should be installed by qualified metrology technicians familiar with the probe system in use. Power down or place the CMM in a safe parked state before changing styli to avoid probe damage. Thread the M4 shank by hand until snug - do not use power tools or apply excessive torque, as overtightening can damage the probe head thread or the stylus itself. After installation, perform a stylus qualification routine on a reference sphere before resuming measurement programs.