Hamilton S 7516 SPRT 4SL FCB Plate Caster with Flat Free Wheels 16 in Wheel Dia., 2900 lb, 18 1 2 in Mounting Ht 3LVR5 Includes Carrying Case Includes Carrying Case They're commonly installed in medical facilities Caster Brake Included Yes Caster Load Rating Range Heavy Duty Caster Sub Type Swivel Caster Wheel Tread Material Pneumatic Load Rating 2900 lb Number of Wheels 1 Caster Stem Type No Stem Plate Included Plate Caster Bolt Hole Pattern D Frame Finish Enamel Item Plate Caster with Flat Free Wheels Caster Plate Hole Pattern D Caster Mounting Type Plate Hub Type Symmetrical Non Marking No Hub Material Steel Outside Bolt Hole Spacing 4 1 8 in x 6 1 8 in Plate Thickness 1 2" Caster Raceway Single Ball Frame Material Forged Steel Inside Bolt Hole Spacing 4 1 8 in x 6 1 8 in Tread Ribbed Caster Product Group Swivel Caster with Four Position Swivel Lock and Brake Includes Four Position Swivel Lock Ply 6 Hub Color Black Caster Wheel Bearings Ball Caster Temp Load Rating 2900 lb