Linear Bearing, Standard Linear, Overall Height 2 1/2 in, Overall Length 2 53/64 in, Overall Width 3 1/8 in, Housing Material Aluminum, Mounting Hole Diameter 21/64 in, Anodized, Silver, System of Measurement Inch, 15 Series, Single Mount, For Number of Slots 3, Standard, Pad Material UHMW Plastic, Compatible Brand and Series 15 Series