Linear Bearing, Standard Linear, Overall Height 2 3/4 in, Overall Length 2 13/16 in, Overall Width 2 1/2 in, Housing Material Aluminum, Mounting Hole Diameter 21/64 in, Anodized, Silver, System of Measurement Inch, 15 Series, Single Flanged, For Number of Slots 3, Standard, Flange Thickness 1/2 in, Pad Material UHMW Plastic, Compatible Brand and Series 15 Series