Standard Plate Caster, Rigid, Polyolefin, 175 lb, 3 in Wheel Dia./ CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH: 1.750 INCHES NOMINAL CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH: 3.000 INCHES NOMINAL WHEEL QUANTITY: 1 SAFE OPERATING LOAD RATING: C250.0 CUBIC CENTIMETERS MINIMUM MATERIAL AND LOCATION: POLYOLEFIN BOTH PLATE AND WHEEL SURFACE TREATMENT AND LOCATION: ZINC PLATE WHEEL TYPE: SOLID WHEEL DIAMETER: 3.000 INCHES NOMINAL EFFECTIVE HEIGHT: 3.750 INCHES NOMINAL PLATE STYLE: 2 RECTANGULAR WHEEL BEARING TYPE: PLAIN, SELF-LUBRICATED TREAD WIDTH: 1.250 INCHES NOMINAL CASTER PLATE LENGTH: 3.750 INCHES NOMINAL CASTER PLATE WIDTH: 2.750 INCHES NOMINAL CASTER PLATE MOUNTING HOLE DIAMETER: 0.3125 INCHES NOMINAL SPECIAL FEATURES: TEMP RANGE: -20 TO 180.0 DEGREES FAHRENHEIT STYLE DESIGNATOR: 1 RIGID