Value Collection 20108 Chrome Steel Ball Grade 25

Product Description

The VALUE COLLECTION 20108 is a Grade 25 chrome steel precision ball measuring 9/32 inch in diameter. Manufactured from chrome steel, this ball delivers a Rockwell hardness of 62 to 66 C, making it well suited for high-load bearing, grinding, and precision mechanical applications. Dimensional control is tightly held to a diameter deviation of no more than 0.00005 inch and a sphericity of 0.000025 inch, meeting ABMA Grade 25 tolerances. Maintenance technicians, machinists, and precision equipment service professionals install these balls in bearing assemblies, valves, and industrial equipment where surface integrity and dimensional accuracy are critical.

These chrome steel balls are commonly used in anti-friction bearing assemblies, ball screws, check valves, and related precision mechanical components found in both commercial and industrial service environments. Grade 25 classification indicates tight tolerance control appropriate for moderate-to-high precision requirements. This listing represents a package quantity of 100 balls, suitable for production use, repair stock, or bulk replacement applications in shop or field settings.

Key Features

• Grade 25 ABMA tolerance class with 0.00005 inch maximum diameter deviation
• Sphericity held to 0.000025 inch for consistent rolling performance
• Chrome steel construction provides 62 to 66 C Rockwell hardness
• 9/32 inch diameter suits standard bearing and valve seat applications
• Package quantity of 100 balls supports production and repair inventory needs

Compatibility

Designed as a standard Grade 25 chrome steel precision ball for use in anti-friction bearings, check valves, ball screws, and similar precision mechanical assemblies requiring 9/32 inch diameter balls.

Installation Notes

Installation is typically performed by machinists, millwrights, or mechanical service technicians. Clean and inspect bearing housings or valve seats before installing new balls to remove debris that could compromise surface finish or seating. Handle precision balls with clean, dry gloves or tooling to avoid contamination of the ground surface. Follow equipment manufacturer specifications and applicable industry standards when assembling bearing or valve components.