Brand: igus Item: Plain bearing Series: Drylin R Housing Material: Anodized aluminum Flanged: No Overall Length: 2-1/4in Housing Fit: Fixed Bearing Inside Diameter: 1in Bearing Material: Type J polymer Housing Type: Closed Housing Outside Diameter: 1-9/16in igus drylin R series plain bearing, type J polymer bearing, 1in inside diameter, 2-1/4in overall length, fixed housing, closed, anodized aluminum.