Caster Temp. Range Available: Yes , Caster Type: Swivel , Caster Wheel Material: Polyurethane , Caster Wheel Shape: Standard , Core Color: Gray , Core Material: Forged Steel , Durometer: 90 Shore A , Extended Lead: No , Frame Finish: Gray Enamel , Frame Material: Forged Steel , Inside Bolt Hole Spacing: 7 x 7" , Lock Type: 4-Position Directional Lock , Mounting Bolt Dia.: 5/8" , Non-Marking: Yes , Outside Bolt Hole Spacing: 7 x 7" , Plate Size: 8-1/2 x 8-1/2" , Plate Thickness: 0.625" , Plate Type: D , Raceway: Hardened Precision Roller , Swivel Radius: 0" , Temp. Range: -40 Degrees to 200 Degrees F , Wheel Bearings: Precision Tapered Roller , Wheel Color: Blue , Wheel Material: Polyurethane