200mm 8" castor black rubber swivel with brake strong 900kg capacity, set of 2

Set of 2 - 200mm black elastic rubber castors with top plate.These 2 strong swivel with brake castors has black solid elastic rubber wheels with aluminium centres, ball bearings. Sealed swivel heads with grease nipple.The brake locks both swivel and wheel at the same time.Item dimensions as follows:Wheel diameter: 200mmWheel tread width: 50mmWheel bearing: Ball bearingsTop plate size: 135x110mmMounting hole centres: 105x75-80mmMounting hole size: 11mmOverall height: 245mmLoad capacity: 450kg per castor (900kg per set)Hardness of wheel tread 75° Shore A.Low rolling resistance, low operating noise and very good floor preservation. The high elasticity of the rubber makes the wheel resume to its round shape faster, avoiding flat spots, and therefore gives a lower rolling resistance than for standard grade rubber.Good chemical resistance, except to oils.