Tray Miscellaneous Accessories

B-Line B376ZN 4-Bearing Channel Bearing Trolley, 300 lb at 600 rpm, 450 lb at 300 rpm, 600 lb at 100 rpm Load Capacity, (3) 9/16 in Hole Size, For Use With B22 Channel, Bolted Framing, Strut and BF-Fittings, Steel