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All measurements indicate the wheel diameter by the tread width.

The below capacity ranges indicate the working (dynamic) load that each caster will support. A safety factor should be included in your formula to determine your required load rating per caster.

W/(C-1)=R W is total weight needed to move. C is total number of casters required. R is ideal load rating, with safety factor built in. Divide the total load weight by one less caster than you will use to safely determine load rating.

Plate dimensions shown are overall mounting plate size.
When replacing existing casters, select the closest plate size and verify bolt-hole compatibility.
BHP = Bolt Hole Pattern, shown under each plate.

BHP: 1-3/4″ × 2-7/8″, slotted to 3″
BHP: 1-3/4″ × 2-7/8″, slotted to 3″
BHP: 1-3/4″ × 2-15/16″ slotted to 2-3/8″ × 3-3/8″
BHP: 1-3/4″ × 2-15/16″ slotted to 2-3/8″ × 3-3/8″
BHP: 2-5/8” X 3-5/8” (Slotted to 3” x 3”)
BHP: 2-5/8” X 3-5/8” (Slotted to 3” x 3”)
BHP: 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4"
BHP: 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4"
(3″ Wide Casters), Industry-Standard
(3″ Wide Casters), Industry-Standard
BHP: 3-3/8" x 5-1/4" slotted to 4-1/8" x 6-1/8"
BHP: 3-3/8" x 5-1/4" slotted to 4-1/8" x 6-1/8"
BHP: 4-1/8" x 6" slotted to 4-1/2" x 6-1/8"
BHP: 4-1/8" x 6" slotted to 4-1/2" x 6-1/8"
View All • 21 Plate Sizes
View All • 21 Plate Sizes
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Caster Wheel Materials & Selection Guide

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18" x 9" Polyurethane Casters — Dual Wheel Swivel Hamilton

2 options in this exact size and spec. See all casters by load capacity and mount type › or call 844-439-4335 for a cross-reference.

21800 lbs
TieredPricing
Hamilton Ultra Maxi-Duty Dual-Wheel Swivel Caster with 18" x 9" Polyurethane Wheel with 2" Precision Tapered Roller Bearing Hamilton
Made to Order · 4-6 Wk
Made in USA
Hamilton S-UMD2-1890POY 18" x 9" Polyurethane Dual Wheel Swivel Caster – 21800 lb
Part # S-UMD2-1890POY
$17,493.00
Volume pricing available
Cast IronPlate
Load rating
21800 lbs
Diameter 18"
Capacity 21800 lbs
Wheel Cast Iron
Mount Plate
More Details Less Details
Width 9"
Temp Range -20°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Hamilton Ultra Maxi-Duty Dual-Wheel Swivel Caster with 18" x 9" Polyurethane Wheel with 2"...
Shop Product
21800 lbs
TieredPricing
Hamilton Ultra Maxi-Duty Dual-Wheel Rigid Caster with 18" x 9" Polyurethane Wheel with 2" Precision Tapered Roller Bearing Hamilton
Made to Order · 4-6 Wk
Made in USA
Hamilton R-UMD2-1890POY 18" x 9" Polyurethane Rigid Dual Wheel Caster – 21800 lb
Part # R-UMD2-1890POY
$17,247.00
Volume pricing available
Cast IronPlate
Load rating
21800 lbs
Diameter 18"
Capacity 21800 lbs
Wheel Cast Iron
Mount Plate
More Details Less Details
Width 9"
Temp Range -20°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
Hamilton Ultra Maxi-Duty Dual-Wheel Rigid Caster with 18" x 9" Polyurethane Wheel with 2"...
Shop Product

18" TerraTech Standard Wheels

Featuring one Caster, within the 18" range. Choose the 18" x 9" TerraTech Standard wheels for your Caster needs.

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