Engineered for use with linear ball bearings, and/or simplicity FrelonGOLD lined bearings, this support rail offers laser-straight alignment. It features aluminum alloy base construction, allowing it to be lightweight, non-magnetic, and vibration-resistant. It also features an RC70 ceramic coated finish, which helps resist weld splatter, paints, and other contaminants. This listing is for each. Technical Specification Shaft Dia. 0.75 Dia. Tolerance Min. 0.749 Dia. Tolerance Max. 0.75 Mounting Surface to Shaft Center (In.) 1.5 Mounting Hole from Shaft End 3 Mounting Hole Center to Center 6 Mounting Holes Clean Mounting Hole Size 0.221 Bolt Size #10 Length 36 Travel Length (In.) 36 Base Width (In.) 1.25 Base Height (In.) 0.25 Overall Height (In.) 1.875 Temp. Range (F) 0 - 400 Material Aluminum Finish Ceramic Coated For Use With Simplicity FrelonGOLD(TM) Lined Bearings Compliance and Restrictions This item is restricted for international sale.