75mm 3" twin wheel castor grey rubber swivel & brake 400kg capacity, set of 4

Set of 4 - 75mm grey rubber castors with top plate.These 2 swivel & 2 swivel with brake twin wheel castors has grey solid thermoplastic rubber wheels with plastic centres.The brake locks both swivel and wheels at the same time.Item dimensions as follows:Wheel diameter: 2x75mmWheel tread width: 2x25mmWheel bearing: Plain bearingTop plate size: 77x67mmMounting hole centres: 55x48mm Mounting hole size: 8mmOverall height: 103mmLoad capacity: 100kg per castor (400kg per set)Hardness of wheel tread 85° Shore A.Reasonable rolling resistance, low operating noise and very good floor preservation. Non-marking.Good chemical resistance to many substances.