6" Polyurethane Cast Iron Hub Fixed Caster, Plate Mount with Lock
These heavyweight fixed casters feature a polyurethane tread molded to a ast iron hub with roller bearings. They offer very high weight capacities, provide good floor protection, are resistant to most chemicals, contain a grease fitting in the hub for easy maintenance and come with a locking brake. The roller bearing makes these very easy to roll under load and their overall design makes them very durable. These 6" casters have a 4-1/2" x 4" plate and 880 lbs. capacity.