152mm 6" castor black rubber swivel & fixed strong 1320kg capacity, set of 4

Set of 4 - 152mm black elastic rubber castors with top plate. These 2 swivel & 2 fixed castors has black solid elastic rubber wheels with aluminium centres, ball bearings. Item dimensions as follows: Wheel diameter: 152mm Wheel tread width: 50mm Wheel bearing: Ball bearings Top plate size swivel castor: 140x110mm Top plate size fixed castor: 146x107mm Mounting hole centres: 105x80mm Mounting hole size: 11mm Overall height: 189mm Load capacity: 330kg per castor (1320kg 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.