Tray Miscellaneous Accessories

B-Line B376ZN 4-Bearing Trolley Assembly, For Use With Strut and BF Fittings, 300 lb at 600 rpm, 450 lb at 300 rpm and 600 lb at 100 rpm Load Capacity, 3-1/8 in L x 1-5/16 in W x 3-3/8 in H, Four Bearing, Steel