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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 Standard Duty 52 Series Casters w/ Ergo-Glide Wheels · Up to 1,250 lb · 4"–8" · Cast Iron

Diameter: 4, 5, 6, 8 inTread: 2 inCapacity: up to 1,250 lb
This 52 series aisle groups plate-mount casters built for warehouse carts on epoxy and smooth concrete. Expect wheel diameters 4, 5, 6, 8 in, polyurethane treads, and capacities 1,250 lb. Pair swivel and rigid casters for tracking, or use total locks where the cart must park on a grade. Use kingpinless or heavy plate series when shock loads keep shearing kingpin races.

Shop by type

4 types

Wheel = wheel diameter · capacity is per caster.

1250 lbs
TieredPricing
Hamilton S-528-SPB Swivel Caster - 8x2 Inch Ergo-Glide Polyurethane on Cast Iron Wheel with Precision Ball Bearings for Enhanced Industrial Mobility Hamilton
Made to Order · 4-6 Wk
Hamilton S-528-SPB 8" x 2" Ergo-Glide Swivel Caster – 1250 lb
Part # S-528-SPB
from $174.00
Volume pricing available
PolyurethanePlate
Load rating
1250 lbs
Diameter 8"
Capacity 1250 lbs
Wheel Polyurethane
Mount Plate
More Details Less Details
Width 2"
Core Iron
Temp Range -20°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Hamilton S-528-SPB Standard Duty Swivel Caster | 8" x 2" Polyurethane Wheel Hamilton S-528-SPB...
Shop Product
1250 lbs
TieredPricing
Hamilton S-526-SPB Standard Duty Swivel Caster - 6x2 Inch Ergo-Glide Polyurethane Wheel on Cast Iron for Industrial Use Hamilton
Made to Order · 4-6 Wk
Hamilton S-526-SPB 6" x 2" Ergo-Glide Poly Swivel Caster – 1250 lb
Part # S-526-SPB
from $149.00
Volume pricing available
Cast IronPlate
Load rating
1250 lbs
Diameter 6"
Capacity 1250 lbs
Wheel Cast Iron
Mount Plate
More Details Less Details
Width 2"
Temp Range -20°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Hamilton S-526-SPB Swivel Caster | 6" x 2" Ergo-Glide Poly Wheel on Cast Iron...
Shop Product
1250 lbs
TieredPricing
Hamilton S-525-SPB Swivel Caster - 5x2 Inch Ergo-Glide Polyurethane Wheel on Cast Iron - Precision Ball Bearings for Smooth Industrial Use Hamilton
Made to Order · 4-6 Wk
Hamilton S-525-SPB 5" x 2" Ergo-Glide Swivel Caster – 1250 lb
Part # S-525-SPB
from $146.00
Volume pricing available
Cast IronPlate
Load rating
1250 lbs
Diameter 5"
Capacity 1250 lbs
Wheel Cast Iron
Mount Plate
More Details Less Details
Width 2"
Temp Range -20°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Hamilton S-525-SPB Swivel Caster | 5" x 2" Ergo-Glide Polyurethane Wheel Hamilton S-525-SPB Standard...
Shop Product
1250 lbs
TieredPricing
Hamilton S-524-SPB Standard Duty Swivel Caster - 4" x 2" Ergo-Glide Polyurethane Wheel with 1/2" Sealed Precision Ball Bearings for Industrial & Warehouse Use Hamilton
Made to Order · 4-6 Wk
Hamilton S-524-SPB 4" x 2" Ergo-Glide Swivel Caster – 1250 lb
Part # S-524-SPB
from $126.00
Volume pricing available
Cast IronPlate
Load rating
1250 lbs
Diameter 4"
Capacity 1250 lbs
Wheel Cast Iron
Mount Plate
More Details Less Details
Width 2"
Temp Range -20°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
S-524-SPB Hamilton Standard Duty Swivel Caster 4" x 2" Ergo-Glide Polyurethane (85A) on Cast...
Shop Product
1250 lbs
TieredPricing
Hamilton R-528-SPB Rigid Caster - 8x2 Inch Ergo-Glide Polyurethane on Cast Iron Wheel with Precision Ball Bearings for Enhanced Industrial Mobility Hamilton
Made to Order · 4-6 Wk
Hamilton R-528-SPB 8" x 2" Polyurethane Rigid Caster – 1250 lb
Part # R-528-SPB
from $164.00
Volume pricing available
PolyurethanePlate
Load rating
1250 lbs
Diameter 8"
Capacity 1250 lbs
Wheel Polyurethane
Mount Plate
More Details Less Details
Width 2"
Core Iron
Temp Range -20°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
Hamilton S-528-SPB Standard Duty Swivel Caster | 8" x 2" Polyurethane Wheel Hamilton R-528-SPB...
Shop Product
1250 lbs
TieredPricing
Hamilton R-526-SPB Standard Duty Rigid Caster - 6x2 Inch Ergo-Glide Polyurethane Wheel on Cast Iron for Industrial Use Hamilton
Made to Order · 4-6 Wk
Hamilton R-526-SPB 6" x 2" Ergo-Glide Poly Rigid Caster – 1250 lb
Part # R-526-SPB
from $138.00
Volume pricing available
Cast IronPlate
Load rating
1250 lbs
Diameter 6"
Capacity 1250 lbs
Wheel Cast Iron
Mount Plate
More Details Less Details
Width 2"
Temp Range -20°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
Hamilton S-526-SPB Swivel Caster | 6" x 2" Ergo-Glide Poly Wheel on Cast Iron...
Shop Product
1250 lbs
TieredPricing
Hamilton R-525-SPB Rigid Caster - 5x2 Inch Ergo-Glide Polyurethane Wheel on Cast Iron - Precision Ball Bearings for Smooth Industrial Use Hamilton
Made to Order · 4-6 Wk
Hamilton R-525-SPB 5" x 2" Ergo-Glide Rigid Caster – 1250 lb
Part # R-525-SPB
from $136.00
Volume pricing available
Cast IronPlate
Load rating
1250 lbs
Diameter 5"
Capacity 1250 lbs
Wheel Cast Iron
Mount Plate
More Details Less Details
Width 2"
Temp Range -20°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
Hamilton S-525-SPB Swivel Caster | 5" x 2" Ergo-Glide Polyurethane Wheel Hamilton R-525-SPB Standard...
Shop Product
1250 lbs
TieredPricing
Hamilton R-524-SPB Standard Duty Rigid Caster - 4" x 2" Ergo-Glide Polyurethane Wheel with 1/2" Sealed Precision Ball Bearings for Industrial & Warehouse Use Hamilton
Made to Order · 4-6 Wk
Hamilton R-524-SPB 4" x 2" Ergo-Glide Rigid Caster – 1250 lb
Part # R-524-SPB
from $137.00
Volume pricing available
Cast IronPlate
Load rating
1250 lbs
Diameter 4"
Capacity 1250 lbs
Wheel Cast Iron
Mount Plate
More Details Less Details
Width 2"
Temp Range -20°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
R-524-SPB Hamilton Standard Duty Rigid Caster 4" x 2" Ergo-Glide Polyurethane (85A) on Cast...
Shop Product

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