Wheel diameter: 100, 125, 150, and 200mm
Wheel width: 50mm
Thickness of the top plate: 6mm
Load capacity: 280 to 420kg
Materials: iron and polyurethane
Bearing: roller bearing
Styles:
Top plate swivel and rigid
Top plate with side brake
Top plate with total brake
Colors: black and red
Housing: zinc plating
Each in a polybag, carton package
Features: wear-resisting, average loading capacity, and roller bearing
Usages: furniture, carts, trolleys, medical appliances, machines, and more
Top plate swivel and rigid
Top plate with side brake
Top plate with total brake
http://www.sitez.com/industrial-casters/