Stromberg STP6600 KPL Series Medium-Heavy Kingpinless Rigid Caster (Swivel caster shown. Actual caster is rigid.)

STP6600 KPL Series Medium-Heavy Kingpinless Rigid Casters - 4 Inch

Manufacturer: Stromberg

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

Ideal for material handling, mobile storage racks, mobile tool chests, platform carts, warehouse trucks and more.

  • Finish: Bright zinc plating.
  • Top plate: 1/4" steel plate.
  • Fork spacing: 2-1/2".
  • Grease fittings: Zerk in swivel section.
  • PSL-Notched: All swivel rigs notched for optional 4-position.
  • Axle: 1/2" diameter axle with lock nut.


Brakes available – contact Material Flow for prices and options.

Note: Swivel caster shown. Actual caster is rigid.



24 Models Available for
STP6600 KPL Series Medium-Heavy Kingpinless Rigid Casters - 4 Inch

*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
STP6640R-KPL-01-HDP Top Plate 4" x 4-1/2" 5-5/8" 4" 2" Heavy Duty Plastic Plain 550 lbs. 3-9/16" $10.07
STP6640R-KPL-01-HPR Top Plate 4" x 4-1/2" 5-5/8" 4" 2" Heavy Duty Plastic Roller 550 lbs. 3-9/16" $12.56
STP6640R-KPL-01-MIR Top Plate 4" x 4-1/2" 5-5/8" 4" 2" Mirage (TPR) Roller 350 lbs. 3-9/16" $12.90
STP6640R-KPL-01-MRC Top Plate 4" x 4-1/2" 5-5/8" 4" 2" Crown Mirage (TPR) Roller 350 lbs. 3-9/16" $12.56
STP6640R-KPL-01-NGF Top Plate 4" x 4-1/2" 5-5/8" 4" 2" Nylon Glass-Filled Roller 800 lbs. 3-9/16" $35.48
STP6640R-KPL-01-PAL Top Plate 4" x 4-1/2" 5-5/8" 4" 2" Polyurethane / Aluminum Roller 700 lbs. 3-9/16" $16.50
STP6640R-KPL-01-PCI Top Plate 4" x 4-1/2" 5-5/8" 4" 2" Polyurethane / Cast Iron Roller 700 lbs. 3-9/16" $15.41
STP6640R-KPL-01-PCC Top Plate 4" x 4-1/2" 5-5/8" 4" 2" Crown Polyurethane / Cast Iron Roller 700 lbs. 3-9/16" $16.50
STP6640R-KPL-01-PCC-PBB Top Plate 4" x 4-1/2" 5-5/8" 4" 2" Crown Polyurethane / Cast Iron Precision 600 lbs. 3-9/16" $18.71
STP6640R-KPL-01-PLX Top Plate 4" x 4-1/2" 5-5/8" 4" 2" Solid Polyurethane Roller 600 lbs. 3-9/16" $18.61
STP6640R-KPL-01-PLX-PBB Top Plate 4" x 4-1/2" 5-5/8" 4" 2" Solid Polyurethane Precision 700 lbs. 3-9/16" $18.49
STP6640R-KPL-01-PNY Top Plate 4" x 4-1/2" 5-5/8" 4" 2" Polyurethane / Nylon Roller 700 lbs. 3-9/16" $14.42
STP6640R-KPL-01-PRO Top Plate 4" x 4-1/2" 5-5/8" 4" 2" Pro-Tech Polyurethane Roller 700 lbs. 3-9/16" $14.54
STP6640R-KPL-01-PRO-PBB Top Plate 4" x 4-1/2" 5-5/8" 4" 2" Pro-Tech Polyurethane Precision 700 lbs. 3-9/16" $13.84
STP6640R-KPL-01-PRX-PBB Top Plate 4" x 4-1/2" 5-5/8" 4" 2" Pro-Tech Xtra Precision 600 lbs. 3-9/16" $14.07
STP6640R-KPL-01-PHN Top Plate 4" x 4-1/2" 5-5/8" 4" 2" Phenolic Roller 800 lbs. 3-9/16" $11.92
STP6640R-KPL-01-PHN-DB Top Plate 4" x 4-1/2" 5-5/8" 4" 2" Phenolic Delrin 800 lbs. 3-9/16" $12.22
STP6640R-KPL-01-PHN-PBB Top Plate 4" x 4-1/2" 5-5/8" 4" 2" Phenolic Precision 800 lbs. 3-9/16" $13.50
STP6640R-KPL-01-PHN-HT Top Plate 4" x 4-1/2" 5-5/8" 4" 2" Hi-Temp Phenolic Roller 800 lbs. 3-9/16" $20.36
STP6640R-KPL-01-RCI Top Plate 4" x 4-1/2" 5-5/8" 4" 2" Rubber / Cast Iron Roller 400 lbs. 3-9/16" $13.50
STP6640R-KPL-01-RNY Top Plate 4" x 4-1/2" 5-5/8" 4" 2" Rubber / Cast Iron Roller 400 lbs. 3-9/16" $12.79
STP6640R-KPL-01-STL Top Plate 4" x 4-1/2" 5-5/8" 4" 2" Steel Roller 700 lbs. 3-9/16" $14.42
STP6640R-KPL-01-SDI Top Plate 4" x 4-1/2" 5-5/8" 4" 2" Ductile Iron Roller 1000 lbs. 3-9/16" $19.20
STP6640R-KPL-01-VGR Top Plate 4" x 4-1/2" 5-5/8" 4" 2" V-Groove Steel Roller 700 lbs. 3-9/16" $16.23
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