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Colson Stainless Casters by Plate Size · 3"–8" · 250–1,250 lb · Polyurethane

Plate sizes: 4 x 4-1/2Bolt holes: 2-5/8 x 3-3/8 slotted to 3 x 3; 3 x 3Diameter: 4, 5, 6, 8 inTread: 2, 4-1/2 inCapacity: up to 1,250 lb
Match a 4 x 4-1/2 top plate when bolting casters under warehouse carts on epoxy and smooth concrete. Expect wheel diameters 4, 5, 6, 8 in, polyurethane, steel, and stainless treads, and capacities 900 to 1,250 lb. Harder poly rolls easier on smooth epoxy; softer poly cushions vibration on uneven slabs. Replace worn corners in matched sets when possible so the cart tracks straight under load.

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Wheel = wheel diameter · capacity is per caster.

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