Spi 14-829-6 Chrome Steel Gage Ball 19mm Grade 25

Product Description

The SPI 14-829-6 is a chrome steel gage ball designed for precision measurement and inspection applications. Manufactured to Grade 25 accuracy and certified to AFBMA standards, this hardened steel ball delivers the dimensional consistency and surface quality required for gauging fixtures, go/no-go gauges, and metrology tooling. The ball measures 19 mm in diameter and is supplied as a package of two. Hardened chrome steel construction provides excellent wear resistance and dimensional stability under repeated contact, making it a reliable reference component in quality-control environments.

This gage ball is suited for use in inspection rooms, machine shops, and manufacturing facilities where tight-tolerance measurement is required. Typical applications include valve seat inspection, bore gauging, coordinate measuring machine (CMM) reference work, and fixture setup. The Grade 25 accuracy rating makes it appropriate for demanding metrology tasks where surface finish and spherical deviation must be tightly controlled. Installation and use require no special tools beyond standard metrology handling practices.

Key Features

• 19 mm diameter chrome steel ball for precision gauging applications
• Grade 25 accuracy per AFBMA certification standards
• Hardened chrome steel construction for wear resistance and dimensional stability
• Supplied in a package of two balls per order
• Consistent spherical geometry suitable for CMM reference and fixture gauging

Compatibility

Designed as a standard-format precision gage ball suitable for use in gauging fixtures, inspection tools, and metrology equipment that accept 19 mm diameter reference balls.

Installation Notes

Gage balls should be handled with clean, lint-free gloves to prevent surface contamination that could affect measurement accuracy. Store in a clean, dry environment to avoid corrosion or surface degradation. Avoid dropping or impact contact, as even hardened steel balls can sustain surface damage that compromises Grade 25 accuracy. No special tooling or trade licensing is required, but use should follow your facility's metrology handling and calibration procedures.