Composed of a polyurethane elastomer, open cast or injection molded, on clean, close tolerance cores. Polyurethane tread is chemically bonded to a cast iron core. High capacity polyurethane protects floors, is non-marking and delivers quieter  operation than standard metal wheels. ??? Hardness: 95 Shore A. Wheel Face: Available in flat or crown tread. Finish: Green tread on black core. Temperature Range: -40 degrees up to +180 degrees Fahrenheit.
        
                    Unit of Measure
                    
               
        
            | Weight | N/A 1.25 | 
| Wheel Description | N/A Poly/Cast Iron | 
| Wheel Diameter (in) | N/A 3.25 | 
| Tread Width (in) | N/A 2-3/16 | 
| Wheel Finish | N/A Green tread on black core | 
| Wheel Hardness | N/A 95 Shore A | 
| Wheel Bearing Type | N/A Roller | 
| Hub Length (in) | N/A 2-3/16 | 
| Bore ID (in) | N/A 1-3/16 | 
| Bearing ID (in) | N/A 1/2 | 
| Temperature Range | N/A -40 degrees up to +180 degrees Fahrenheit | 
| Load Rating (lbs) | N/A 540 | 
| Load Rating Range (lbs) | N/A 500-599 | 
| Why OneMonroe? | N/A VMI - Custom Manufacturing - Technical Guides - Quality - Company Overview | 
| Product Guides | N/A Caster Guide | 
 
 