STP6600W Series Pneumatic or Flat-Free Rigid Casters

Manufacturer: Stromberg

Volume Discounts Apply
FOB: West Coast Warehouse
Lead time: 2-5 days


Prevent downtime due to flats, or choose pneumatic wheels for a cushioned, shock-absorbent ride over uneven surfaces. Ideal for film and entertainment equipment, garden equipment and platform trucks.

  • Finish: Bright zinc plating.
  • Rigid: Welded with heavy-duty gauge steel for extra strength.
  • Grease fittings: Zerk in swivel action.
  • PSL-Notched: All-swivel rigs notched for optional 4-position swivel lock.
  • Axle: 1/2" diameter axle with lock nut.
  • PNU wheel: 50 Psi for higher load capacity and 4-ply tread, 3-piece bolted hub.
  • Air Free (Flat-Free) wheels available.
  • Sealed precision ball bearing comes standard all PNU and AFR wheels.
  • Inner tube available for repair for PNU wheels.
  • Ideal for film and entertainment equipment, garden equipment and platform trucks.


4 Models Available for
STP6600W Series Pneumatic or Flat-Free Rigid Casters

*Prices subject to change without notice

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Model No. Fastening Type Fastening Size Overall Height Wheel Diameter Tread Width Wheel Type Wheel Bearing Load Capacity Swivel Radius Price Ea. Qty
STP6680WR-01-PNU-PBB Top Plate 4" x 4-1/2" 10" 8" 3" Pneumatic Precision 275 lbs. 6-3/4" $22.88
STP6610WR-01-PNU-PBB Top Plate 4" x 4-1/2" 12" 10" 3-1/2" Pneumatic Precision 500 lbs. 7-3/4" $25.69
STP6680WR-01-AFR-PBB Top Plate 4" x 4-1/2" 10" 8" 3" Air/Flat Free Precision 275 lbs. 6-3/4" $25.69
STP6610WR-01-AFR-PBB Top Plate 4" x 4-1/2" 12" 10" 3-1/2" Air/Flat Free Precision 300 lbs. 7-3/4" $30.17
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