Material：Made of aluminum material with corrosion resistance and long life. Model: SK8; Shaft Diameter: 8mm/0.31inch; Mount Hole Dia.: 5.5mm/0.22inch Stable Performance：Low friction resistance can get high precision rotating and small vibration in the smooth movement. Widely Used：Linear rail shaft support widely used for digital 3D coordinate measuring equipment such as precision equipment or special machinery industry.

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