66 Series Cast-Iron (Semi-Steel) Caster

A tough medium heavy-duty wheel designed for high-load rolling and long service life. The semi-steel cast-iron wheel is built for demanding industrial use where strength and durability matter most—great for carts, racks, shop equipment, and material-handling applications.

Size & Capacity (per caster)

• 4" x 2" — 700 lb

• 5" x 2" — 1,000 lb 

• 6" x 2" — 1,100 lb 

• 8" x 2" — 1,200 lb

Standard Specs (all sizes)

• Caster type: Swivel (Top Plate) (and/or Rigid if selected)

• Top plate: 4" x 4-1/2"

• Bolt pattern: 2-5/8" x 3-5/8" (fits up to 3" x 3")

• Wheel material: Cast Iron

• Bearing: Roller Bearing (Code 02)

Notes

Capacity rating is per caster. Actual performance can vary based on floor condition, load distribution, and speed.

Need help choosing the right caster or brake option?
Call: 818-252-0878
Text: 818-645-1693
Email: cis_sale@prodigy.net