Precision 15/64 inch steel balls made from GCr15 / AISI 52100 chrome bearing steel — the same grade used in premium ball bearings worldwide. Hardened to HRC 60–66 and surface-polished to mirror grade for low-friction, high-speed rolling. Sold for ball bearing rebuilds, OEM assembly, custom mechanical applications, and industrial maintenance.

✅ Key features

• 💪 Bearing-grade GCr15 / AISI 52100 chrome steel
• 🛡️ HRC 60–66 hardness — same as branded bearing balls
• 🪞 Mirror-polished surface — Grade G100 or better
• 📐 Tight sphericity tolerance — ±0.005 mm
• 🌡️ Heat resistant — operating range −40°C to +120°C
• 🔧 Anti-corrosion oil coating — ready to fit

📋 Specifications

🔧 Common applications

Ball bearing rebuilds, custom bearing assemblies, valve seats and check valves, lock and security mechanisms, ball-point applications, industrial fixtures, jewelry and decorative use, custom CNC and prototyping work.

🇮🇳 Why repair shops choose TBF

• ✅ Used by 1,000+ workshops across India
• ✅ GST tax invoice on every order
• ✅ Same-day dispatch from Faridabad before 4 PM IST
• ✅ Bulk packs available — quantity discounts on WhatsApp
• ✅ Quality consistent across all sizes

📞 Need a custom quantity or different size? WhatsApp us for a quote.