SKTREX 2pcs 4 Wheel Trolley Assembly Rollers Four Bearing Trolley Assembly for 1-58 Wide and All 1-58 or Taller Strut Channel

Beam Trolleys by SKTREX. Details:Specification Product Name: 4 Bearing Trolley Assembly Material: Steel Finish: Zinc Plated Steel Trolleys Size:Steel plate thickness1/4″ (6mm), Steel plate hole diameter: 9/16″ (14mm), Design load: 280 lbs at 600 rpm; 380 lbs at 300 rpm; 450 lbs at 100 rpm. Break strength: 3969 lbs. Heavy Duty Industrial Strength. The Roller trolley is suitable for: all 1-5/8″ or higher pillar channels. Trolley Wheel Weight: 477g Advantage Roller Trolley Standard deep groove ball bearing installation is very smooth no noise to it when used. Bearings and pins are firmly welded, work stably, and can be used for a long time. Package included:2 pcs x 4 Wheel Trolley Assembly.