The Black Rubber Flat Bottom Fixed Casters 

Wheel material: Black rubber tread + iron core,Black Rubber Flat Bottom Fixed Caster with excellent elasticity and wear resistance, good aging resistance, excellent low temperature resistance, low heat generation under dynamic load, and strong iron core and ball bearing. This product is suitable for use in the electrical equipment industry, the trolley industry and suitable for high load conditions. Tread hardness: 75 (± 5) SHORE A Temperature range: -50~80°C" Wheel diameter: 3"-5" Load: 60-125kg Flat bottom fixed casters, pressed rigid wheel frame, ball bearing Wheel Material: black rubber with iron core Housing made of pressed steel, zinc plating, fixed caster. How To Measure Caster Wheel? Watch this Caster Wheel Size Chart:

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