Plate Caster with Pneumatic Wheels Load Rating Range 300 to 999 lb Load Rating 990 lb Tread Diamond Wheel Dia 11 13/16 in Wheel Width 4 in Inside Bolt Hole Spacing 4-3/4 in x 6-5/16 in Outside Bolt Hole Spacing 4-3/4 in x 6-5/16 in Caster Brake Type No Brake Included Caster Product Group Rigid Caster Caster Sub-Type Rigid Operating Temperature Range -20 Degrees to 120 Degrees F Non-Marking No Wheel/Tread Material Rubber Tire Rim Dia 5 7/64 in Tire Thickness 3 11/32 in