Brand: igus Item: Shaft Series: Drylin R For Use With: 1/2in drylin R series bearings Material: 6060/6061 aluminum Diameter: 1/2in Length: 250mm Shaft Type: Supported Hardness: 450-550 HV Surface Finish: Hard-anodized aluminum igus drylin R series supported shaft, 6060/6061 aluminum, 450-550 HV, hard-anodized aluminum, 1/2in diameter, 250mm length. For use with 1/2in drylin R series bearings.