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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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Hamilton Spring Casters w/ Duralast Polyurethane Wheels · 4"–8" · 1,200 lb · Cast Iron

Diameter: 4, 5, 6, 8 inTread: 2 inCapacity: up to 1,200 lb
Duralast Polyurethane Wheels for bake carts, metalworking fixtures, and debris-heavy floors. Expect wheel diameters 4, 5, 6, 8 in, polyurethane and phenolic treads, and plate-mount frames. Confirm stem length and thread pitch on stem mounts so the shoulder seats flush in the boss. Match bolt-hole spacing or stem diameter to the frame before you standardize a fleet. These medium-duty options cover everyday bake carts, metalworking fixtures, and debris-heavy floors without jumping to extreme forged series.

Shop by type

4 types

Wheel = wheel diameter · capacity is per caster.

1200 lbs
TieredPricing
Hamilton S-SPHS-8DB-1 Heavy Service Swivel Caster – 8" Duralast Polyurethane on Cast Iron Wheel with Precision Ball Bearings Hamilton
Made to Order · 4-6 Wk
Hamilton S-SPHS-8DB-1 8" x 2" Duralast Swivel Caster – 1200 lb
Part # S-SPHS-8DB-1
from $670.00
Volume pricing available
PolyurethanePlate
Load rating
1200 lbs
Diameter 8"
Capacity 1200 lbs
Wheel Polyurethane
Mount Plate
More Details Less Details
Width 2"
Height 10-3/16"
Core Iron
Temp Range -20°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Hamilton S-SPHS-8DB-1 Heavy Service Swivel Caster: Power Your Mobility Unbeatable Durability | Optimal Load...
Shop Product
1200 lbs
TieredPricing
Hamilton 6" x 2" Swivel Caster – Heavy-Duty Spring Loaded, Duralast Polyurethane on Cast Iron, 1/2" Sealed Precision Bearings Hamilton
Made to Order · 4-6 Wk
Hamilton S-SPHS-6DB-2 6" x 2" Duralast Swivel Spring Loaded Caster – 1200 lb
Part # S-SPHS-6DB-2
from $624.00
Volume pricing available
PolyurethanePlate
Load rating
1200 lbs
Diameter 6"
Capacity 1200 lbs
Wheel Polyurethane
Mount Plate
More Details Less Details
Width 2"
Height 8-3/16"
Core Iron
Temp Range -20°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Hamilton Spring Loaded Heavy Service Swivel Caster 6" x 2" Duralast Polyurethane Wheel |...
Shop Product
1200 lbs
TieredPricing
Hamilton 6" x 2" Spring Loaded Heavy Service Swivel Caster - Duralast Polyurethane on Cast Iron with Sealed Precision Ball Bearings Hamilton
Made to Order · 4-6 Wk
Hamilton 6" x 2" Duralast Polyurethane Swivel Spring Loaded Caster – 1200 lb
Part # S-SPHS-6DB-1
from $561.00
Volume pricing available
PolyurethanePlate
Load rating
1200 lbs
Diameter 6"
Capacity 1200 lbs
Wheel Polyurethane
Mount Plate
More Details Less Details
Width 2"
Height 8-3/16"
Core Iron
Temp Range -20°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Hamilton Spring Loaded Heavy Service Swivel Caster: Top-Quality 6" x 2" Wheel Duralast Polyurethane...
Shop Product
1200 lbs
TieredPricing
Hamilton 4" x 2" Spring Loaded Swivel Caster - Duralast Polyurethane on Cast Iron Wheel with 1/2" Sealed Precision Ball Bearings Hamilton
Made to Order · 4-6 Wk
Hamilton S-SPHS-4DB-2 4" x 2" Duralast Spring Loaded Swivel Caster – 1200 lb
Part # S-SPHS-4DB-2
from $539.00
Volume pricing available
PolyurethanePlate
Load rating
1200 lbs
Diameter 4"
Capacity 1200 lbs
Wheel Polyurethane
Mount Plate
More Details Less Details
Width 2"
Height 6-11/16"
Core Iron
Temp Range -20°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Hamilton Spring Loaded Heavy Service Swivel Caster 4" x 2" Duralast Polyurethane Wheel |...
Shop Product
1200 lbs
TieredPricing
Hamilton S-SPHS-4DB-1 Spring Loaded Heavy-Duty Swivel Caster - 4"x2" Duralast Polyurethane on Cast Iron Wheel with Sealed Precision Bearings - Best for Industrial & Warehouse Use Hamilton
Made to Order · 4-6 Wk
Hamilton S-SPHS-4DB-1 4"x2" Duralast Poly Swivel Spring Loaded Caster – 1200 lb
Part # S-SPHS-4DB-1
from $482.00
Volume pricing available
PolyurethanePlate
Load rating
1200 lbs
Diameter 4"
Capacity 1200 lbs
Wheel Polyurethane
Mount Plate
More Details Less Details
Width 2"
Height 6-11/16"
Core Iron
Temp Range -20°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
S-SPHS-4DB-1 Hamilton Spring Loaded Heavy Service Swivel Caster: Robust & Efficient Movement Solution Best...
Shop Product
1200 lbs
TieredPricing
Hamilton R-SPHS-8DB-1 Heavy Service Rigid Caster – 8" Duralast Polyurethane on Cast Iron Wheel with Precision Ball Bearings Hamilton
Made to Order · 4-6 Wk
Hamilton R-SPHS-8DB-1 8" x 2" Duralast Rigid Caster – 1200 lb
Part # R-SPHS-8DB-1
$570.00
Volume pricing available
PolyurethanePlate
Load rating
1200 lbs
Diameter 8"
Capacity 1200 lbs
Wheel Polyurethane
Mount Plate
More Details Less Details
Width 2"
Height 10-3/16"
Core Iron
Temp Range -20°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
Hamilton R-SPHS-8DB-1 Heavy Service Rigid Caster: Power Your Mobility Unbeatable Durability | Optimal Load...
Shop Product
1200 lbs
TieredPricing
Hamilton 6" x 2" Rigid Caster – Heavy-Duty Spring Loaded, Duralast Polyurethane on Cast Iron, 1/2" Sealed Precision Bearings Hamilton
Made to Order · 4-6 Wk
Hamilton R-SPHS-6DB-2 6" x 2" Duralast Rigid Spring Loaded Caster – 1200 lb
Part # R-SPHS-6DB-2
from $607.00
Volume pricing available
PolyurethanePlate
Load rating
1200 lbs
Diameter 6"
Capacity 1200 lbs
Wheel Polyurethane
Mount Plate
More Details Less Details
Width 2"
Height 8-3/16"
Core Iron
Temp Range -20°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
Hamilton Spring Loaded Heavy Service Rigid Caster 6" x 2" Duralast Polyurethane Wheel |...
Shop Product
1200 lbs
TieredPricing
Hamilton 6" x 2" Spring Loaded Heavy Service Rigid Caster - Duralast Polyurethane on Cast Iron with Sealed Precision Ball Bearings Hamilton
Made to Order · 4-6 Wk
Hamilton 6" x 2" Duralast Polyurethane Rigid Spring Loaded Caster – 1200 lb
Part # R-SPHS-6DB-1
from $604.00
Volume pricing available
PolyurethanePlate
Load rating
1200 lbs
Diameter 6"
Capacity 1200 lbs
Wheel Polyurethane
Mount Plate
More Details Less Details
Width 2"
Height 8-3/16"
Core Iron
Temp Range -20°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
Hamilton Spring Loaded Heavy Service Rigid Caster: Top-Quality 6" x 2" Wheel Duralast Polyurethane...
Shop Product
1200 lbs
TieredPricing
Hamilton R-SPHS-4SPB-1 Heavy Service Rigid Caster - 4"x2" Ergo-Glide Polyurethane on Cast Iron - 1/2" Sealed Precision Ball Bearings - Durable & High-Quality Hamilton
Made to Order · 4-6 Wk
Hamilton R-SPHS-4SPB-1 4"x2" Ergo-Glide Rigid Spring Loaded Caster – 1200 lb
Part # R-SPHS-4SPB-1
from $473.00
Volume pricing available
PolyurethanePlate
Load rating
1200 lbs
Diameter 4"
Capacity 1200 lbs
Wheel Polyurethane
Mount Plate
More Details Less Details
Width 2"
Height 6-11/16"
Core Iron
Temp Range -20°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
Hamilton R-SPHS-4SPB-1 Spring Loaded Heavy Service Rigid Caster High-Quality Caster | Durable & Reliable...
Shop Product
1200 lbs
TieredPricing
Hamilton 4" x 2" Spring Loaded Rigid Caster - Duralast Polyurethane on Cast Iron Wheel with 1/2" Sealed Precision Ball Bearings Hamilton
Made to Order · 4-6 Wk
Hamilton R-SPHS-4DB-2 4" x 2" Duralast Rigid Spring Loaded Caster – 1200 lb
Part # R-SPHS-4DB-2
from $523.00
Volume pricing available
PolyurethanePlate
Load rating
1200 lbs
Diameter 4"
Capacity 1200 lbs
Wheel Polyurethane
Mount Plate
More Details Less Details
Width 2"
Height 6-11/16"
Core Iron
Temp Range -20°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
Hamilton Spring Loaded Heavy Service Rigid Caster 4" x 2" Duralast Polyurethane Wheel |...
Shop Product
1200 lbs
TieredPricing
Hamilton R-SPHS-4DB-1 Spring Loaded Heavy-Duty Rigid Caster - 4"x2" Duralast Polyurethane on Cast Iron Wheel with Sealed Precision Bearings - Best for Industrial & Warehouse Use Hamilton
Made to Order · 4-6 Wk
Hamilton R-SPHS-4DB-1 4"x2" Duralast Poly Rigid Spring Loaded Caster – 1200 lb
Part # R-SPHS-4DB-1
from $458.00
Volume pricing available
PolyurethanePlate
Load rating
1200 lbs
Diameter 4"
Capacity 1200 lbs
Wheel Polyurethane
Mount Plate
More Details Less Details
Width 2"
Height 6-11/16"
Core Iron
Temp Range -20°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
R-SPHS-4DB-1 Hamilton Spring Loaded Heavy Service Rigid Caster: Robust & Efficient Movement Solution Best...
Shop Product

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