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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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4" Wheels

Made to Order · 4-6 Wk
325 lbs
Hamilton S-341-UY Swivel Caster - 4 Inch Unilast Solid Polyurethane Wheel, 325 lbs Load Capacity, 5/8 Inch Straight Roller Bearing - Heavy-Duty General Utility Caster Hamilton
Made in USA
Hamilton S-341-UY 4" x 1 1/4" Unilast Swivel Caster – 325 lb
Part # S-341-UY
from $82.00 USD
Bulk Pricing
50+
5% off
100+
10% off
200+
15% off
Solid PolyurethanePlate
Load rating
325 lbs
Diameter 4"
Capacity 325 lbs
Wheel Solid Polyurethane
Mount Plate
More Details Less Details
Width 1-1/4"
Height 5"
Bolt Pattern 1-3/4" x 2-7/8"
Temp Range -20°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Hamilton S-341-UY Swivel Caster Heavy-Duty Utility Reliability in Motion | Superior Durability Versatile and...
View Details
Made to Order · 4-6 Wk
325 lbs
Hamilton R-341-UY Rigid Caster - 4 Inch Unilast Solid Polyurethane Wheel, 325 lbs Load Capacity, 5/8 Inch Straight Roller Bearing - Heavy-Duty General Utility Caster Hamilton
Made in USA
Hamilton R-341-UY 4" x 1 1/4" Unilast Rigid Caster – 325 lb
Part # R-341-UY
from $57.00 USD
Bulk Pricing
50+
5% off
100+
10% off
200+
15% off
Solid PolyurethanePlate
Load rating
325 lbs
Diameter 4"
Capacity 325 lbs
Wheel Solid Polyurethane
Mount Plate
More Details Less Details
Width 1-1/4"
Height 5"
Bolt Pattern 1-3/4" x 2-7/8"
Temp Range -20°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
Hamilton R-341-UY Rigid Caster Heavy-Duty Utility Reliability in Motion | Superior Durability Versatile and...
View Details

Hamilton General Utility | 300 Casters with 4" Unilast Wheels

Robust 4" Unilast Wheels | Versatile Utility Caster Design

Reliable and Multi-Use Utility Casters

Explore the exceptional Hamilton General Utility | 300 Series Casters, featuring the reliable 4-inch Unilast Wheels. Designed to offer unmatched durability and versatility, these casters are perfect for a wide range of industrial applications. Their robust construction ensures long-lasting performance in various environments.

Enhance Your Industrial Mobility

The Hamilton 300 Series provides an ideal solution for effortlessly moving heavy loads in warehouses, workshops, and other industrial settings. Their ease of use and durability make them a top choice for businesses seeking efficient and reliable mobility solutions.

Dedicated Support and Quality Assurance

Investing in Hamilton's General Utility | 300 Casters means securing a product backed by extensive expertise and customer support. Experience peace of mind with our quality assurance and dedicated customer service team, available to assist you with any queries or needs.

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