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Materials: stainless steel, refined chrome steel and beryllium steel
Size and rotation precision as per ABEC 1, 3, 5 and 7
Outer diameter: 22mm
Inner diameter: 10mm
Width: 6mm
Curvature: 0.5mm
Steel ball rolling:<ul>
Body: number: 9
Size: 2.381mm</ul>
Deep Groove Ball Bearing, Made of Stainless Steel, Width of 6mm
