NORCO RL-26 Heavy-Duty Slide Ball Bearing Rail Type: Heavy-Duty Slide Ball Bearing Rail Specifications: Support 1U to 4U Norco rackmount cases. Ball bearing sliding rails. 26.25 inch (L) x 1.79 inch (H) x 0.5 inch (Thickness) / 11 lb. Lock-open to secure the chassis in position for easy access, more tapped screw holes on outer member, easy-mount, quick-disconnect design. Load rating up to 130 lbs. W/additional dia. 4.4mm x 35mm slotted mounting holes (5x), mountable to most chassis (chassis width