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Hamilton UMD Casters | to 40,000 lb

Diameter: 8 to 16 inTread: 3, 4, 5 inCapacity: up to 40,000 lb
This collection gathers plate-mount casters used on warehouse carts on epoxy and smooth concrete. You will see wheel diameters 8 to 16 in, polyurethane and steel treads, and capacities 20,000 to 40,000 lb across the SKUs listed below. Harder poly rolls easier on smooth epoxy; softer poly cushions vibration on uneven slabs. Size capacity from the heaviest corner load with shock margin, and keep overall height consistent across the set.

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3 types

Wheel = wheel diameter · capacity is per caster.

Series UMD Ultra Maxi-Duty Casters

Capacity Range: 17,000 – 40,000 lbs.


The Ultra Maxi-Duty with a load rating up to 40,000 lbs. per caster represents the highest capacity production caster series on the market today. Hamilton engineers started with a clean slate and built this series from the ground up with one task in mind: build the most durable 40,000 lbs. capacity caster possible! The series is designed and built for extremely heavy duty applications such as shipbuilding, military, aerospace, and moving any other immense loads.


The UMD’s swivel design consists of two massive precision thrust ball bearings and a third highly specialized four point contact bearing that provides easy swiveling under extreme loads. The series is offered in both single wheel and dual-wheel versions and all models are backed by Hamilton’s three year product warranty.


Quality Features & Specs

  • Swivel Construction 1” thick mounting plate and ¾” thick precision laser cut steel legs continuously welded both inside and out.
  • Kingpin Guaranteed-for-life 1 ½” dia. integrally formed with mounting plate, which won’t bend or break.
  • Main Load Bearing Two precision thrust ball bearings. The outer thrust bearing is 13” in diameter and boasts an impressive 234,000 lbs. load rating and the inner thrust bearing is 7” diameter rated at a comfortable 100,000 lbs.
  • Secondary Load Bearing A third highly specialized four point contact bearing supports the 1-1/2’ dia. integrally formed kingpin.
  • Axle Stress proof steel, 2" dia for casters equipped with Press-on Poly & Nylast, all forged steel has 1-1/2” dia. axle except 8" x 3" has 1-1/4".

 

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