(1)QLM-20 Specifications: Model Number: QLM-20 Diameter: 203.2mm Width: 75mm Number of Rollers: 12 Number of Bearings: 24 Hub Material: Aluminum Roller Material: polyurathane Hole size: 20 Mount: 6*6mm Key Weight: 2240g Load Capacity: 100Kg (2)Usage: robots , robot platform , heavy duty omni moving platform, scientific research , show equipment on stage or show cars wheelchair, electric unmanned vehicle (3)Application: robots , robot platform , AGV in workhouse and warehouse scientific research , aerospace industry, show equipment on stage or show cars, wheelchair and so on (4)Advantages: 1.Making turning fast 2.Omni directional movement and rotation 3.Superior load capacity (5)Certificate of honor High-tech enterprises ISO9001 Quality Management System cerification (6)Related patents ZL201120121753.X ZL201120121743.6 ZL201120121754.4 ZL201130086552.6