Rockbit 100 Pack Eleven Sixteenths Inch S2 Tool Steel G200 Bearing Balls Loose Bearing Balls For Precision Milling And Drilling Equipment Use In Mining Machinery And Industrial Tools

100-Pack 11/16 in S-2 Tool Steel Bearing Balls for Rockbits
✔️ Pack of 100 loose S-2 tool steel bearings, G200 grade

This 100-count lot features 11/16 in (0.6875 in) diameter bearing balls, with a precise 17.4625 mm size, made from S-2 tool steel and hardened to G200. These loose balls are ideal for rockbits and heavy-duty tooling, delivering consistent performance in abrasive environments.

✅ Size: 11/16" (0.6875 in) / 17.4625 mm
✅ Material: S-2 tool steel, G200 hardness ~60 HRC
✅ Quantity: 100 loose balls
✅ Hardness: ~60 HRC, heat-treated
✅ Finish: polished, round precision-ground
✅ Applications: rockbits, mining tools, and custom bearing assemblies

💡 What is a ball bearing used for in mechanical systems and why pick hardened steel balls?

Ball bearings provide smooth rotation and load support in a wide range of machinery. - High-load capability for rotating shafts and equipment - Durability from S-2 tool steel with G200 hardness for tough environments - Common in rockbits, mining gear, and industrial tooling - Consistent size and roundness for reliable custom assemblies