Caster Barn's SuperPolyT is for extreme heavy loads! Our SuperPolyT slows down internal heat that builds up from rolling heavy loads which significantly increases its load capacity and life span! 1 thick Polyurethane tread on a Heavy Duty Cast Iron Core.
Variety of bearing options for extending performance at different applications. Softer tread facilitates initial push and pull. Temperature range: -40° F to 180°.