I went with...
IQWTU Heavy Duty 75MM Castor with Brake, 4 Furniture Castors with M10 X 25 mm (3/8" x 1") Screw Stem, PU Rubber Casters Trolley Wheels, Transport Castors 360° Rotation up to 400KG
....75mm for my Axminster bandsaw and 50mm for planer, overkill for weight rating. Bought through...