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8" x 3" Phenolic Casters — Kingpinless 310 Series

Plate sizes: 3-3/8 x 5-1/4, 4-1/2 x 6-1/4Bolt holes: 2-7/16 x 4-15/16 slotted to 3-3/8 x 5-1/4Diameter: 8, 10, 12 inTread: 3 inCapacity: up to 3,500 lb
310 Series casters for heavy industrial carts that tear up kingpin races. Expect top plates around 3-3/8 x 5-1/4, wheel diameters 8, 10, 12 in, and phenolic treads. 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. Use kingpinless or heavy plate series when shock loads keep shearing kingpin races.

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Wheel = wheel diameter · capacity is per caster.

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