The CPC-MR12 series rail provides precision, rigidity, and quality all nestled into one tiny package. Don't let the size fool you, the rail and block combination is ideal for dynamic loads up to 4,070 N (7,800 lbs) and static loads up to 5,630 N (11,260 lbs). The design incorporates two rows of re-circulating steel balls arranged in the O-type design with a 45° contact angle with the raceway. The O-type design improves the rigidity of the track rail under moment and torsion forces providing higher load capacities. The CPC-MR12 linear guide rails and blocks offered in standard lengths, or a customer may request a specific length.