RWM Casters 47 Series Plate Caster Swivel Kingpinless Phenolic Wheel Roller Bearing 800 lbs Capacity 4 inch Wheel Dia 2 inch Wheel Width 5-5 8 inch Mount Height 4-1 2 inch Plate Length 4 inch Plate Width

The 47 series is a lightest duty Kingpinless caster series. This series is ideal for: tow lines, shock load applications and abusive conditions, production line dollies and trucks used in various industries including but not limited to: boat and ship molding and building, automotive, aerospace, metal fabricating, metal forging, heavy machinery and equipment, military equipment, mobile homes, etc. tractor pulled trailers, extreme duty platform trucks and material handling carts, air cargo and ground support equipment, storage tanks, gantries and heavy duty processing equipment, coliseum and gymnasium equipment, shipping/ receiving carts, warehousing and freight terminal dollies and carts, and countless other heavy duty applications. Patented kingpinless single ball bearing precision machined raceway hardened to 53 Rockwell C. minimum. Swivel section features 2-1/8" diameter raceway with 1/4" ball bearings. 1/4" formed steel leg thickness. 1/2" axle bolt and locking nut drilled with lube fitting. Mounting plate size is 4" x 4-1/2" x 1/4" and 2" tread wheel.