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What are Industrial Casters and Wheels?

Caster-Concepts-57-Series

Caster Concepts 57 Series

“Industrial casters and wheels” should be differentiated from “institutional casters and wheels.”

The difference between these terms can be broken down by capacities and by construction.

Institutional casters and wheels are designed for applications under 250 lbs. The construction is cold stamped metal with formed and welded legs on the outside surface only. Top plates and yokes are assembled with compression riveting.  Institutional wheels maybe injection molded plastic or urethane, or two component wheels with a plastic core and the TPR (Thermo Plastic Rubber) tire. Composite resin may also be an option. Bearings are small in diameter and are captured in the swivel section at the time they riveted in place. Finish is generally clear zinc plating.  The institutional casters are designed for light use and are not built for abusive applications. These casters are made in high volume and are not customizable.

Casters and Wheels can be grouped into:

  • Medium Duty Casters, capacities ranging from 250 to 1500 lbs
  • Heavy Duty Casters, capacities ranging from 450 to 5000 lbs
  • Extra Heavy Duty Casters, capacities ranging from 1600 to 20,000 lbs
  • Super Heavy Duty Casters, range up to 50,000 lbs.

The construction of industrial casters and wheels consists of precision machined raceway swivel sections that are hardened to a predetermined hardness for prolonged life-cycle. Material of the swivel section is specified to be high quality and heat treatable to 38-42 Rc. The legs are precision laser cut and formed to strengthen the caster while adding additional safety factors and to alleviate failure points while minimizing welding. Legs are welded to the yoke base of the caster with continuous MIG GSW welding process on the inner and outer surface. Wheel cores are grey iron with a polyurethane tire or the wheel maybe forged steel, nylon or composite resin. The swivel sections maybe in held in place by harden ball bearings (Kingpinless Caster), hardened king pin with a castle nut and pin or hardened sealed ball bearings pressed into the assembly (maintenance free). The entire caster is then assembled with high quality bearings to meet the load application and provide prolonged life cycle. The common finish is clear zinc or gold dichromate.

Industrial caster and wheel design and manufacturing lends itself to extensive customization to meet all the customer’s needs and specifications. Proper understand of the application combined with skilled engineers are key components to a successful custom application caster.

Standard industrial caster and wheels specifications (capacities) are targeted for use in a manual application and at walking speeds (3.5 MPH).

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