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8" x 3" Poly-on-Iron Casters

Plate sizes: 4-1/2 x 6-1/4, 5-1/4 x 7-1/4Bolt holes: 2-7/16 x 4-15/16 slotted to 3-3/8 x 5-1/4; 3-3/8 x 5-1/4 slotted to 4-1/8 x 6-1/8Diameter: 8 inTread: 3 inCapacity: up to 4,000 lb
Casters on the 4-1/2 x 6-1/4 plate pattern suit warehouse carts on epoxy and smooth concrete. Typical builds show wheel diameters 8 in, polyurethane and stainless treads, and capacities 2,000 to 4,000 lb. Size capacity from the heaviest corner load with shock margin, and keep overall height consistent across the set. Larger plates spread bolt stress on thick frames under continuous tow abuse. These heavy-duty options cover everyday warehouse carts on epoxy and smooth concrete without jumping to extreme forged series.

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