Caster HQ'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°.