central lock caster wheel,central locking caster wheels,medical bed caster wheels Wheel Material:PU,PA,ABS Size:5" x 60mm ; 6" x 60mm Loading Height:160mm ; 185mm Loading Capacity:100kg-150kg Static Loading: 160kg ~210kg Lock:Central Locking Bearing Type:Double Ball Bearing Central Locking Optional: 32mm x 50mm , 28mm x 98.5mm Widely used as hospital bed caster,Medical trolley caster, stretcher caster,Laboratory,Casters,healthcare bed casters,UNIVERSAL TABLES caster www.casterwheelsco.com ; [email protected]