10,000-Pack 4.5mm Balls SS302 Stainless Steel Bearing Balls 0.1772 inch

Loose 4.5mm Stainless Steel Bearing Balls - G25
✨ SS302 Grade - 10000 Precision Balls - 0.1772" Diameter

These 4.5mm loose bearing balls are made from SS302 stainless steel and manufactured to G25 precision grade. Ideal for bearing rebuilds, hobby projects, and mechanical components, they offer high sphericity, excellent corrosion resistance, and solid hardness for long-term performance.

🟢 Pack includes 10,000 stainless steel balls
🟢 Diameter: 4.5mm (0.1772 inch)
🟢 Material: SS302 stainless steel
🟢 Hardness: 60 HRC (Rockwell)
🟢 Precision grade: G25
🟢 Sphericity tolerance: ±0.000025"
🟢 Corrosion-resistant and magnetically responsive
🟢 Commonly used in casters, bicycles, and small machinery