This 8 x 3 Cast Iron Kingpinless Swivel Caster or “semi-steel” is a strong, durable and cost effective solution that can carry heavy loads. Featuring a weight capacity of 2,500 lbs. and an operating temperature range of -45° to +600° Fahrenheit, they roll easily on clean, debris free floors. This wheel is not recommended for wet environments as it can rust.
For more info, check out Caster Wheel Types.
Kingpinless caster rigs are different from standard kingpin caster rigs in that the swivel section is held together without a rivet or nut and bolt kingpin. Kingpinless caster rigs are held together by a single row of ball bearings that are contained by a full contact interlocking swivel raceway design. Kingpinless casters are ideal for towing, conveyor, maintenance/utility carts, tow lines, drag lines and more robust applications seen in industrial environments.
For more info, check out Caster Rig Types.