S-WH-4DB Hamilton Series WH Workhorse Caster. Drop forged steel swivel caster construction includes a 3/4 diameter integrally forged steel kingpin (guaranteed for life!), and a precision secondary load bearing. CNC-Machined 2-9/16 diameter raceway with 3/8 hardened and polished steel balls. 3/4 precision tapered thrust bearing counteracts radial thrust. Ball check lubrication fittings in swivel assembly and in wheel hubs with tapered or straight roller bearings. Wheel - 4 x 2 Duralast 95 Shore A polyurethane on cast iron wheel with precision ball bearings Capacity - 750 pounds Height - 5-5/8 Top Plate - 4 x 5 Bolt Holes - 3 x 3 slotted to 2-5/8 x 3-5/8 Mounting Bolt Diameter - 3/8 WHEEL DESCRIPTION - 4 x 2 Duralast 95 Shore A polyurethane on cast iron wheel with precision ball bearings CASTER RIG DESCRIPTION – Top Plate - 4 x 5 Bolt Holes - 3 x 3 slotted to 2-5/8 x 3-5/8 Mounting Bolt Diameter - 3/8 SPECIFICATIONS -Capacity - 750 pounds Height - 5-5/8 INDUSTRIES AND APPLICATIONS - Ground support MORE INFORMATION - Don't see the caster you are looking for ? Call us or message us by clicking the Access Casters link under Add to Cart button. ASIN B00N53MBRE Color gray Brand Name Access Casters Caster Type Swivel Item Weight 13 Pounds Part Number S-WH-4DB Wheel Width 2 Inches Manufacturer Access Casters Load Capacity 750 Pounds Material Type Cast Iron Mounting Type Plate Mount Surface Recommendation Multi-Surface