Value Collection 20154 Chrome Steel Ball Grade 25 12mm

Product Description

The VALUE COLLECTION 20154 is a Grade 25 chrome steel ball designed for precision bearing and industrial applications. Measuring 12 mm in overall diameter, this ball meets tight dimensional tolerances with a diameter deviation of 0.00005 inches and a sphericity of 0.000025 inches. Hardness is rated at 62 to 66 HRC, making it well-suited for high-load and high-wear environments. Licensed technicians, machinists, and maintenance professionals working with precision assemblies rely on components at this tolerance class to maintain system integrity and minimize wear-related failures.

Grade 25 chrome steel balls are used in ball bearings, linear motion systems, check valves, pumps, and general industrial assemblies where close dimensional accuracy is required. The metric 12 mm diameter fits standard metric bearing races and housings common in commercial and industrial equipment. This part is sold in packages of 10, making it practical for both single-unit repairs and small-batch replacements.

Key Features

• Grade 25 precision classification with 0.00005-inch diameter deviation
• Sphericity of 0.000025 inches for consistent rolling accuracy
• Hardness rated 62 to 66 HRC for high-load and wear-resistant applications
• Chrome steel construction provides corrosion resistance and surface durability
• Metric 12 mm diameter fits standard metric bearing and valve assemblies
• Sold in a package of 10 units

Compatibility

Designed as an OEM-style replacement for metric precision bearing assemblies and industrial components requiring a Grade 25, 12 mm chrome steel ball.

Installation Notes

Installation is typically performed by machinists, bearing technicians, or qualified maintenance personnel. Ensure the mating bearing race, housing, or seat is clean and free of debris before seating the ball. Do not force the ball into an undersized bore, as this can damage the seating surface and compromise dimensional accuracy. Handle precision-grade balls with clean tools or gloves to avoid surface contamination.