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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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Unilast

Diameter: 4 to 10 inTread: 1-1/4, 2, 3 inCapacity: up to 3,200 lb
Unilast for warehouse carts on epoxy and smooth concrete. Typical builds show wheel diameters 4 to 10 in, polyurethane treads, and industrial frames. Size capacity from the heaviest corner load with shock margin, and keep overall height consistent across the set. Replace worn corners in matched sets when possible so the cart tracks straight under load. These heavy-duty options cover everyday warehouse carts on epoxy and smooth concrete without jumping to extreme forged series.

Shop by wheel type

5 types

Wheel = wheel diameter · capacity is per wheel.

3200 lbs
TieredPricing
Hamilton Unilast Solid Polyurethane Wheel W-420-UY-3/4 - 4" Diameter, 2" Width, 75D Hardness, 3/4" Straight Roller Bearing - Durable & Versatile for Industrial Use Hamilton
Made to Order · 4-6 Wk
Hamilton W-420-UY-3/4 4" x 2" Polyurethane Solid Wheel – 3200 lb
Part # W-420-UY-3-4
$53.00
Volume pricing available
Solid Polyurethane
Load rating
3200 lbs
Capacity 3200 lbs
Wheel Solid Polyurethane
More Details Less Details
Temp Range -20°F to 180°F
Frame Zinc Plated Steel
Hamilton Unilast Polyurethane Wheel W-420-UY-3/4 Durable & Versatile | Industrial & Commercial Use High-Quality...
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3200 lbs
TieredPricing
Hamilton Unilast Solid Polyurethane Wheel W-420-UY-1/2 - 4" Diameter, 2" Width, 75D Hardness, 1/2" Straight Roller Bearing - Durable & Versatile for Industrial Use Hamilton
Made to Order · 4-6 Wk
Hamilton W-420-UY-1/2 4" x 2" Polyurethane Solid Wheel – 3200 lb
Part # W-420-UY-1-2
$59.00
Volume pricing available
Solid Polyurethane
Load rating
3200 lbs
Capacity 3200 lbs
Wheel Solid Polyurethane
More Details Less Details
Temp Range -20°F to 180°F
Frame Zinc Plated Steel
Hamilton Unilast Polyurethane Wheel W-420-UY-1/2 Durable & Versatile | Industrial & Commercial Use High-Quality...
Shop Product
475 lbs
TieredPricing
Hamilton W-412-UYZ-1/2 Unilast Wheel - Solid Polyurethane 4" Dia. x 1 1/4" W - Heavy-Duty 1/2" Delrin Bearing for Industrial Use Hamilton
Made to Order · 4-6 Wk
Hamilton W-412-UYZ-1/2 4" x 1 1/4" Polyurethane Solid Wheel – 475 lb
Part # W-412-UYZ-1-2
$57.00
Volume pricing available
Solid Polyurethane
Load rating
475 lbs
Capacity 475 lbs
Wheel Solid Polyurethane
More Details Less Details
Temp Range -20°F to 180°F
Frame Zinc Plated Steel
Hamilton Unilast Solid Polyurethane Wheel W-412-UYZ-1/2 Durable & Versatile | Industrial & Commercial Use...
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3200 lbs
TieredPricing
Hamilton Unilast Solid Polyurethane (75D) Wheel W-412-UY-5/8: 4" x 1 1/4" Industrial Wheel with 5/8" Straight Roller Bearing Hamilton
Made to Order · 4-6 Wk
Hamilton W-412-UY-5/8 4" x 1 1/4" Polyurethane Solid Wheel – 3200 lb
Part # W-412-UY-5-8
from $51.00
Volume pricing available
Solid Polyurethane
Load rating
3200 lbs
Diameter 4"
Capacity 3200 lbs
Wheel Solid Polyurethane
More Details Less Details
Width 1-1/4"
Temp Range -20°F to 180°F
Frame Zinc Plated Steel
Hamilton Unilast Solid Polyurethane (75D) Wheel W-412-UY-5/8 4" Diameter x 1 1/4" Wide x...
Shop Product
3200 lbs
TieredPricing
Hamilton Unilast Solid Polyurethane (75D) Wheel W-412-UY-3/4: 4" x 1 1/4" Industrial Wheel with 3/4" Straight Roller Bearing Hamilton
Made to Order · 4-6 Wk
Hamilton W-412-UY-3/4 4" x 1 1/4" Polyurethane Solid Wheel – 3200 lb
Part # W-412-UY-3-4
from $56.00
Volume pricing available
Solid Polyurethane
Load rating
3200 lbs
Diameter 4"
Capacity 3200 lbs
Wheel Solid Polyurethane
More Details Less Details
Width 1-1/4"
Temp Range -20°F to 180°F
Frame Zinc Plated Steel
Hamilton Unilast Solid Polyurethane (75D) Wheel W-412-UY-3/4 4" Diameter x 1 1/4" Wide x...
Shop Product
3200 lbs
TieredPricing
Hamilton Unilast Solid Polyurethane (75D) Wheel W-412-UY-1/2: 4" x 1 1/4" Industrial Wheel with 1/2" Straight Roller Bearing Hamilton
Made to Order · 4-6 Wk
Hamilton W-412-UY-1/2 4" x 1 1/4" Solid Polyurethane Wheel – 3200 lb
Part # W-412-UY-1-2
from $51.00
Volume pricing available
Solid Polyurethane
Load rating
3200 lbs
Diameter 4"
Capacity 3200 lbs
Wheel Solid Polyurethane
More Details Less Details
Width 1-1/4"
Temp Range -20°F to 180°F
Frame Zinc Plated Steel
Hamilton Unilast Solid Polyurethane (75D) Wheel W-412-UY-1/2 4" Diameter x 1 1/4" Wide x...
Shop Product
3100 lbs
TieredPricing
Hamilton Heavy Duty Unilast Solid Polyurethane (65D) Wheel W-1030-HDUYB-3/4: 10" x 3" Industrial Wheel with 3100 lbs Load Capacity Hamilton
Made to Order · 4-6 Wk
Hamilton W-1030-HDUYB-3/4 10"x3" Polyurethane Solid Wheel – 3100 lb
Part # W-1030-HDUYB-3-4
$342.00
Volume pricing available
Solid Polyurethane
Load rating
3100 lbs
Diameter 10"
Capacity 3100 lbs
Wheel Solid Polyurethane
More Details Less Details
Width 3"
Temp Range -20°F to 180°F
Frame Zinc Plated Steel
Hamilton Heavy Duty Unilast Solid Polyurethane (65D) Wheel W-1030-HDUYB-3/4 10" Diameter x 3" Wide...
Shop Product

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