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71 Series Casters – 4,500 Lbs Max Capacity – 5 x 7.25 Top Plate – Kingpinless

Swivel Section: High alloy steel swivel section features a precision machined and through hardened 3-1/4” diameter raceway.

Kingpin: Kingpinless style design.

Legs: 3/8” x 3” legs are formed and continuously welded inside and outside to the yoke base.

Axle: 3/4” bolt and locking nut.

Lubrication: Pre-lubricated before shipping

Wheels: 4” to 12” wheels are available with either 1” roller bearings with a hardened and ground steel spanner bushing, 3/4” tapered bearing, or precision ball bearings.

Finish: Clear zinc plating.

71 Series Caster


The 71 Series is our heaviest offering in the fabricated single ball race caster. These swivel bearings act as both load and thrust components and lock the swivel section together to distribute the load over a larger area. Because of the unique fabrication of the swivel section, various top plate options can be utilized.


The 71 Series casters are well suited for medium duty towing applications where shock loads are present. In addition, they may be used for dough troughs, high capacity die tables, machinery dollies, corrugated steel box trucks, heavy portable storage racks, mobile military equipment, aircraft maintenance stands, and aircraft crew stairs.

Custom CAD


Caster Concepts has a wide variety of caster options. Many of these not only improve function – but also provide safety and add longevity to the product. When considering safety options, the most common consideration would be caster locks, caster brakes, toe guards, and reinforced legs. Options that extend the life of a caster are primarily options that seal the bearing of the caster to prevent contamination of the precision parts.

Other options include threaded zerks for when an application is difficult and high level of maintenance is required and track brush wipers that keep debris from stopping movement or damaging a wheel. These options can be added at the time of manufacturing or after the caster is fully assembled.