Value Collection 20127 Chrome Steel Ball Grade 25 15/16 in

Product Description

The VALUE COLLECTION 20127 is a Grade 25 chrome steel precision ball designed for applications requiring tight dimensional control and high surface hardness. Measuring 15/16 inches in diameter, this ball holds a diameter deviation of no more than 0.00005 inches and a sphericity tolerance of 0.000025 inches. Hardness runs 62 to 66 HRC, making it suitable for load-bearing and wear-resistant environments. Machinists, maintenance technicians, and industrial assembly professionals use Grade 25 balls in bearings, valves, gauges, and precision mechanical assemblies where dimensional accuracy is critical.

Grade 25 chrome steel balls are commonly specified in anti-friction bearing assemblies, ball screws, check valves, and precision measurement fixtures across both light industrial and heavy manufacturing settings. The 15/16-inch diameter fits standard bearing races and valve seats designed around this nominal size. This package contains 15 balls per unit, supplied as a quantity lot suitable for service replacement, production assembly, or maintenance stock.

Key Features

• Grade 25 precision grade with 0.00005-inch diameter deviation tolerance
• Sphericity tolerance of 0.000025 inches for consistent contact geometry
• 62 to 66 HRC surface hardness for wear and load resistance
• Chrome steel construction for corrosion resistance in typical industrial environments
• 15/16-inch diameter compatible with standard bearing and valve seat dimensions
• Packaged in quantities of 15 balls per lot

Compatibility

Designed as a standard replacement or production-use Grade 25 chrome steel ball for bearing assemblies, check valves, ball screws, and precision mechanical components requiring a 15/16-inch nominal ball diameter.

Installation Notes

Installation of precision balls into bearing races or valve seats should be performed by qualified mechanical technicians using clean, lint-free handling procedures to avoid contaminating the ball surface or seating area. De-energize and de-pressurize any system before removing or replacing balls in live assemblies. Avoid impact installation methods that could alter sphericity or surface finish. Follow equipment manufacturer specifications for lubrication and preload when reseating into bearing assemblies.