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Caster; Swivel; 6" x 3"; PolyU (HD) on Cast; Plate (5-1/4"x7-1/4"; holes: 3-3/8"x5-1/4" slotted to 4-1/8"x6-1/8"; 1/2" bolt); Sealed Prec BB; 3000#; Pos Lock (Item #65579)

As Low As $209.18

  • Shipping Weight: 32 lbs
This product has sealed bearings. You need not grease these wheels even if the wheel hub and/or the axle has a zerk fitting.

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Caster; Swivel; 6" x 3"; PolyU (HD) on Cast; Plate (5-1/4"x7-1/4"; holes: 3-3/8"x5-1/4" slotted to 4-1/8"x6-1/8"; 1/2" bolt); Sealed Prec BB; 3000#; Pos Lock

Polyurethane on Steel wheels offer a longer wearing, higher capacity material than rubber, yet will not damage or mark floors like cast iron or steel. Polyurethane wheels possess a durability unmatched by any rubber tread wheel and are built to withstand permanent flat spots in the tread. The polyurethane resists most chemicals and oils and rejects floor debris.

Some polyu-on-steel are considered extreme duty. This combination of high-load urethane chemically fused to a steel core makes this wheel one of the most long lasting, rugged wheels available. It resists heat build-up and is excellent for applications where heavy loads and continuous usage cause regular poly wheels to degrade.

It provides floor protection, is non-marking and delivers a quieter ride than a hard tread or steel wheel.


  • Wheel Diameter: 6"
  • Tread Width: 3"
  • Material: PolyU (3/4"; 60D) on Cast
  • Load Rating (Per Item): 3000 pounds
  • Finish: Zinc
  • Click for Connector Details: Plate (5-1/4"x7-1/4"; holes: 3-3/8"x5-1/4" slots to 4-1/8"x6-1/8"; 1/2" bolt)
  • Bearing: Prec Ball Brngs
  • Position Lock (4-way)
  • Misc Options: Kingpinless
  • Swivel Locks: Position Lock (4-way)
  • Load Height: 8"
  • Swivel Radius: 4-3/4"
  • Shipping Weight: 32 lbs.
  • Usually Ships in: 7-10 business days (may be affected by quantity ordered)

  • Heavy Duty Kingpinless series, featuring: • Larger 5-1/4 x 7-1/4 plate standard • ASTM1045 drop forged swivel head, 5/16" thick, 3" diameter precisely machined raceway of 1/2" diameter hardened ball bearings • Legs are double welded 3/8" thick steel • 3/4" axle bolt/nut • Zinc-plated finish • Grease fitting on raceway and axle • Variety of brakes, position locks, thread guards and toe guards available • RoHS Compliant

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    Products are warranted for basic operations and performance.  Products are guaranteed to match the product description for fit, form and function. (Color or slight tooling differences are subjective and may not be covered by warranty. Obvious color errors - such as you requested blue tread and received red - will be fully addressed.) Inherent quality issues become obvious immediately upon placing the products into service. Failures resulting after weeks or months of service likely result from  environmental or usage factors. When in doubt, please contact us to discuss options. Our goal is to help address your needs and encourage your long term trust. Purchased the wrong item? No worries. Returns are usually allowed if the wrong item was purchased. Just contact Apollo Caster within 10 days of receiving your order for an RMA and the simple return instructions. Buyer pays return shipping and a small restock fee.

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