New. Grade 10 high carbon chrome allow steel balls, honed and polished to accuracy of 10 microns so they're perfectly round. Vacuum degassing to ensure that the carbon steel elements are accurately combined for the purest, hardest steel balls available. Hight tensile derlin cage that helps hold bearings in place, especially through heavy impact and allows for a longer lasting bearing.

Features:
• Super fast, smooth, and strong with less overall weight
• Hardened Rockwell C 60-62 titanium steel construction with derlin crowns for low friction
• Double polished deep groove racers
• Better stability, increased speed, and rolling resistance
• Thicker IR and OR for increased strength and impact resistance

Availability: In stock