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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
Plate Casters
Plate Casters
Stem Casters
Stem Casters
Stainless Casters
Stainless Casters
Ergonomic Casters
Ergonomic Casters
Leveling Casters
Leveling Casters
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Caster Wheel Materials & Selection Guide

Caster Wheel Materials & Selection Guide
Polyolefin Wheels

Polyolefin Wheels
High Temperature Wheels

High Temperature Wheels
Track Wheels (All Types)

Track Wheels (All Types)
Hand Truck Wheels

Hand Truck Wheels
Rubber Wheels (All Types)

Rubber Wheels (All Types)
Nylon Wheels

Nylon Wheels
Keyed Drive Wheels

Keyed Drive Wheels
Pneumatic Wheels

Pneumatic Wheels
Atx Off-road Wheels

Atx Off-road Wheels
Poly Wheels (All Types)

Poly Wheels (All Types)
Phenolic Wheels

Phenolic Wheels
Metal Wheels (All Types)

Metal Wheels (All Types)
Flat-free (Foam-filled)

Flat-free (Foam-filled)
Wheel Replacement Parts

Wheel Replacement Parts
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Caster Plate Mounting Hardware

Caster Plate Mounting Hardware
Quick Change Caster Pads

Quick Change Caster Pads
Caster Frames - Swivel & Rigid

Caster Frames - Swivel & Rigid
Sockets & T-nuts For Casters

Sockets & T-nuts For Casters
Washers

Washers
Expanding Rubber Adapter Kits

Expanding Rubber Adapter Kits
Bumpers

Bumpers
Axles & Nuts

Axles & Nuts
Spanner Bushings

Spanner Bushings
Caster Shims & Weld Plates

Caster Shims & Weld Plates
Furniture Glides

Furniture Glides
Floor Truck Locks

Floor Truck Locks
Swivel Locks

Swivel Locks
Wheel Bearings

Wheel Bearings
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Furniture Dollies

Furniture Dollies
Hydraulic Lift Tables

Hydraulic Lift Tables
Utility Carts

Utility Carts
Pallet Dollies

Pallet Dollies
Safe & Applicance Dollies

Safe & Applicance Dollies
Carts & Platform Trucks

Carts & Platform Trucks
Hand Trucks & Accessories

Hand Trucks & Accessories
Ratchet Straps & Tie Downs

Ratchet Straps & Tie Downs
Three Wheel Dollies

Three Wheel Dollies
Wire Shelving

Wire Shelving
Pallet Jacks

Pallet Jacks
Stackers

Stackers
Heavy Duty Tilt Trucks

Heavy Duty Tilt Trucks
Ball Transfers

Ball Transfers
Moving Supplies

Moving Supplies
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Specialty Casters

Specialty Casters
Gate Casters

Gate Casters
BBQ Pit & Smoker Casters

BBQ Pit & Smoker Casters
Keyed Drive Wheels

Keyed Drive Wheels
Drywall Cart Casters

Drywall Cart Casters
Skid Wheels & Casters for RVs

Skid Wheels & Casters for RVs
Leveling Casters

Leveling Casters
Shopping Cart Wheels & Casters

Shopping Cart Wheels & Casters
Band Equipment Casters & Wheels

Band Equipment Casters & Wheels
Low Profile Casters

Low Profile Casters
Cart Wheels & Casters

Cart Wheels & Casters
Toolbox Caster Sets

Toolbox Caster Sets
Bakery & High Temperature Casters

Bakery & High Temperature Casters
Kitchen Prep Table Caster Sets

Kitchen Prep Table Caster Sets
Wire Shelving Casters

Wire Shelving Casters
Silent Glide Casters

Silent Glide Casters
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ALBION CASTERS

ALBION CASTERS
BLICKLE CASTERS

BLICKLE CASTERS
HAMILTON CASTERS

HAMILTON CASTERS
P&H CASTERS

P&H CASTERS
SHEPHERD CASTERS

SHEPHERD CASTERS
B&P MANUFACTURING

B&P MANUFACTURING
SAFE 'N SECURE

SAFE 'N SECURE
HUDSON BEARINGS

HUDSON BEARINGS
QUANTUM STORAGE

QUANTUM STORAGE
AMERICAN MOVING SUPPLIES

AMERICAN MOVING SUPPLIES
COLSON CASTERS

COLSON CASTERS
DURASTAR CASTERS

DURASTAR CASTERS
CORPS DESIGN

CORPS DESIGN
FAULTLESS MEDICAL CASTERS

FAULTLESS MEDICAL CASTERS

8″ x 4″ Casters — Hamilton UltraGlide Quad-Wheel & Forged Steel, 45 Styles

The 8″ x 4″ size is dominated by Hamilton — specifically the UltraGlide Quad-Wheel series (four wheels on a shared platform for even lower deflection at heavy loads) and the EPSD-FVH forged steel variants for the heaviest applications. 45 styles spanning UltraGlide swivel and rigid configurations, forged steel rigid, and polyurethane on cast iron replacement wheels at 6,500 lb. Used for aircraft ground support, military transport, foundry-adjacent material handling, and the heaviest commercial fleet applications.

45 Hamilton-dominant stylesUltraGlide Quad-WheelUp to 6,500+ lb per caster1-1/4″ ball or sealed bearings
In Stock · Same/Next Day
8" x 4" Polyurethane on Cast Iron Core - 6,500 lbs Cap CasterHQ
8" x 4" Polyurethane Cast Iron Industrial Replacement Wheel – 6500 lb | CasterHQ $641.00 USD
Bulk Pricing
50+
5% off
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10% off
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15% off
Diameter 8"
Capacity 6500 lbs
Wheel Polyurethane
More Details Less Details
Width 4"
Core Iron
Temp Range -40°F to 180°F
Frame Zinc Plated Steel
CasterHQ's SuperPoly™ is for extreme heavy loads! Our SuperPoly™ slows down internal heat thatbuilds...
Made to Order · 4-6 Wk
Hamilton Maxi-Duty Swivel Caster with 8" x 4" UltraGlide™ (95A) Quad-Wheel Grey Tread on Aluminum Core with 1 1/4" Sealed Precision Ball Bearings CasterHQ
Made in USA
Hamilton 8" x 4" UltraGlide Quad-Wheel Swivel Caster – 1 1/4" Ball Bearings | CasterHQ Free
Bulk Pricing
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Diameter 8"
Capacity 4500 lbs
Wheel Polyurethane
Mount Plate
More Details Less Details
Width 4"
Core Aluminum
Temp Range -20°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Made to Order · 4-6 Wk
Hamilton Maxi-Duty Swivel Caster with 8" x 4" UltraGlide™ (70D) Quad-Wheel Black Tread on Aluminum Core with 1 1/4" Sealed Precision Ball Bearings CasterHQ
Made in USA
Hamilton 8" x 4" UltraGlide Quad-Wheel Swivel Caster – 1 1/4" Sealed Bearings Free
Bulk Pricing
50+
5% off
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Diameter 8"
Wheel Polyurethane
Mount Plate
More Details Less Details
Width 4"
Core Aluminum
Temp Range -20°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Made to Order · 4-6 Wk
Hamilton Maxi-Duty Rigid Caster with 8" x 4" UltraGlide™ (70D) Quad-Wheel Black Tread on Aluminum Core with 1 1/4" Sealed Precision Ball Bearings CasterHQ
Made in USA
Hamilton 8" x 4" UltraGlide Rigid Quad-Wheel Caster | CasterHQ Free
Bulk Pricing
50+
5% off
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10% off
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Diameter 8"
Capacity 5400 lbs
Wheel Polyurethane
Mount Plate
More Details Less Details
Width 4"
Core Aluminum
Temp Range -20°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
Made to Order · 4-6 Wk
Hamilton 8" x 4" Forged Steel Wheel, High Heat Precision Ball Bearing, 1 1/4" Hub, 6000 lbs Load Capacity @ 550°F, 4400 lbs @ 750°F - W-840-HFSB-1-1/4 Hamilton
Made in USA
Hamilton W-840-HFSB-1-1/4 8" x 4" Forged Steel Wheel – 6000 lb | CasterHQ $664.00 USD
Bulk Pricing
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Diameter 8"
Capacity 6000 lbs
More Details Less Details
Width 4"
Temp Range Up to 750°F
Frame Zinc Plated Steel
Discover Top-Quality Industrial Wheels: Hamilton Forged Steel Wheel Specials Exclusive Online Offers | Best...
Made to Order · 4-6 Wk
Hamilton W-840-FVT-1-1/4 V-Grooved Forged Steel Wheel | 8" x 4" | 15000 lbs Capacity Hamilton
Made in USA
Hamilton W-840-FVT-1-1/4 8" x 4" Forged Steel Wheel – 15000 lb | CasterHQ $660.00 USD
Bulk Pricing
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Diameter 8"
Capacity 15000 lbs
More Details Less Details
Width 4"
Temp Range -20°F to 180°F
Frame Zinc Plated Steel
Discover the Hamilton W-840-FVT-1-1/4 V-Grooved Forged Steel Wheel - Ultimate Durability for Heavy-Duty Use...
Made to Order · 4-6 Wk
Hamilton W-840-FVT-1-1/2 V-Grooved Forged Steel Wheel | 8" x 4" | 15000 lbs Capacity Hamilton
Made in USA
Hamilton W-840-FVT-1-1/2 8" x 4" Forged Steel Wheel – 15000 lb | CasterHQ $750.00 USD
Bulk Pricing
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Diameter 8"
Capacity 15000 lbs
More Details Less Details
Width 4"
Temp Range -20°F to 180°F
Frame Zinc Plated Steel
Discover the Hamilton W-840-FVT-1-1/4 V-Grooved Forged Steel Wheel - Ultimate Durability for Heavy-Duty Use...
Made to Order · 4-6 Wk
8" x 4" Hamilton Forged Steel Wheel with 1 1/4" Precision Tapered Roller Bearings - 17,000 lb Capacity Hamilton
Made in USA
Hamilton 8" x 4" Forged Steel Industrial Replacement Wheel – 17000 lb | CasterHQ $582.00 USD
Bulk Pricing
50+
5% off
100+
10% off
200+
15% off
Diameter 8"
Capacity 17000 lbs
More Details Less Details
Width 4"
Temp Range -20°F to 180°F
Frame Zinc Plated Steel
Industrial-Strength Wheels: Upgrade Your Equipment Today!Heavy-Duty Performance | Unbeatable PricesLimited Time OfferGet unparalleled value...
Made to Order · 4-6 Wk
8" x 4" Hamilton Forged Steel Wheel with 1-1/2" Precision Tapered Roller Bearings - 17,000 lb Capacity Hamilton
Made in USA
Hamilton 8" x 4" Forged Steel Industrial Replacement Wheel – 17,000 lb | CasterHQ $701.00 USD
Bulk Pricing
50+
5% off
100+
10% off
200+
15% off
Diameter 8"
Capacity 17000 lbs
More Details Less Details
Width 4"
Temp Range -20°F to 180°F
Frame Zinc Plated Steel
Industrial-Strength Wheels: Upgrade Your Equipment Today!Heavy-Duty Performance | Unbeatable PricesLimited Time OfferGet unparalleled value...
Made to Order · 4-6 Wk
8" x 4" Hamilton Forged Steel Caster Wheel with 2 7/16" Plain Bore, 17,000 lbs Capacity Hamilton
Made in USA
Hamilton 8" x 4" Forged Steel Industrial Replacement Wheel – 17000 lb | CasterHQ $491.00 USD
Bulk Pricing
50+
5% off
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Diameter 8"
Capacity 17000 lbs
More Details Less Details
Width 4"
Temp Range -20°F to 180°F
Frame Zinc Plated Steel
Heavy Duty Wheels | Unmatched Strength for Your Toughest JobsTop-Rated Casters | Guaranteed Lowest...
Made to Order · 4-6 Wk
8" x 4" Hamilton Forged Steel Caster Wheel with 6,500 lb Capacity and 1 1/4" Straight Roller Bearing Hamilton
Made in USA
Hamilton W-840-FSH-1-1/4 8" x 4" Forged Steel Wheel – 6,500 lb | CasterHQ $491.00 USD
Bulk Pricing
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Diameter 8"
Capacity 6500 lbs
More Details Less Details
Width 4"
Temp Range -20°F to 180°F
Frame Zinc Plated Steel
Top-Quality Industrial Casters Best Prices Online | 8" x 4" Hamilton Steel Caster Product...
Made to Order · 4-6 Wk
8" x 4" Hamilton Forged Steel Caster Wheel with 6,500 lb Capacity and 1-1/2" Straight Roller Bearing Hamilton
Made in USA
Hamilton W-840-FSH-1-1/2 8" x 4" Forged Steel Wheel – 6,500 lb | CasterHQ $491.00 USD
Bulk Pricing
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Diameter 8"
Capacity 6500 lbs
More Details Less Details
Width 4"
Temp Range -20°F to 180°F
Frame Zinc Plated Steel
Top-Quality Industrial Casters Best Prices Online | 8" x 4" Hamilton Steel Caster Product...
Made to Order · 4-6 Wk
Hamilton Ultra Maxi-Duty Dual-Wheel Swivel Caster with 8" x 4" Forged Steel Wheel with 1 1/2" Precision Tapered Roller Bearing Hamilton
Made in USA
Hamilton S-UMD2-84FST 8" x 4" Forged Steel Dual Wheel Swivel Caster – 27200 lb | CasterHQ
Up to 350 Ibs. Economical, Zinc
$7,923.00 USD
Bulk Pricing
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Diameter 8"
Capacity 27200 lbs
Mount Plate
More Details Less Details
Width 4"
Temp Range Up to 800°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Hamilton Ultra Maxi-Duty Dual-Wheel Swivel Caster with 8" x 4" Forged Steel Wheel with...
Made to Order · 4-6 Wk
Hamilton Maxi-Duty Swivel Caster - 8x4 Forged Steel Wheel, High Heat 750°F Capacity, 7000 lbs Load - Stainless Steel Precision Bearings Hamilton
Made in USA
Hamilton 8" x 4" Forged Steel Swivel Caster – 7000 lb | CasterHQ $1,592.00 USD
Bulk Pricing
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Diameter 8"
Capacity 7000 lbs
More Details Less Details
Width 4"
Temp Range Up to 750°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Hamilton High Heat Maxi-Duty Swivel Caster Engineered for High-Temperature Performance | Unmatched Durability &...
Made to Order · 4-6 Wk
Hamilton Maxi-Duty Dual-Wheel Swivel Caster with 8" x 4" UltraGlide (70D) Quad-Wheel Black Tread on Aluminum Core with 1 1/4" Sealed Precision Ball Bearings Hamilton
Made in USA
Hamilton MDD-84SWF70D 8" x 4" UltraGlide Dual Wheel Swivel Caster – 8700 lb | CasterHQ $2,208.00 USD
Bulk Pricing
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Diameter 8"
Wheel Polyurethane
Mount Plate
More Details Less Details
Width 4"
Core Aluminum
Temp Range -20°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Hamilton Maxi-Duty Dual-Wheel Swivel Caster with 8" x 4" UltraGlide (70D) Quad-Wheel Black Tread...
Made to Order · 4-6 Wk
Hamilton Maxi-Duty Dual-Wheel Swivel Caster with 8" x 4" UltraGlide (95A) Quad-Wheel Grey Tread on Aluminum Core with 1 1/4" Sealed Precision Ball Bearings Hamilton
Made in USA
Hamilton S-MDD-84SWC95 8" x 4" UltraGlide Swivel Dual Wheel Caster – 8100 lb | CasterHQ $2,187.00 USD
Bulk Pricing
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Diameter 8"
Wheel Polyurethane
Mount Plate
More Details Less Details
Width 4"
Core Aluminum
Temp Range -20°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Hamilton Maxi-Duty Dual-Wheel Swivel Caster with 8" x 4" UltraGlide (95A) Quad-Wheel Grey Tread...
Made to Order · 4-6 Wk
Hamilton Maxi-Duty 15,000 lbs. Swivel Caster - 8"x4" Forged Steel V-Grooved Wheel with 1 1/4" Precision Tapered Roller Bearings - S-MD-84FVT Hamilton
Made in USA
Hamilton S-MD-84FVT 8"x4" Forged Steel Swivel Caster – 15,000 lb | CasterHQ $1,229.00 USD
Bulk Pricing
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Diameter 8"
Capacity 15000 lbs
More Details Less Details
Width 4"
Temp Range -20°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Hamilton Maxi-Duty 15,000 lbs. Swivel Caster - S-MD-84FVT Hamilton Maxi-Duty 15,000 lbs. Swivel Caster...
Made to Order · 4-6 Wk
Hamilton Maxi-Duty S-MD-84FVH Swivel Caster - 8"x4" Forged Steel V-Grooved Wheel with 1 1/2" Roller Bearing Hamilton
Made in USA
Hamilton S-MD-84FVH 8"x4" Forged Steel Swivel Caster – 1 1/2" Roller Bearing | CasterHQ $1,160.00 USD
Bulk Pricing
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Diameter 8"
Mount Plate
More Details Less Details
Width 4"
Temp Range -20°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Hamilton Maxi-Duty Swivel Caster: S-MD-84FVH Welcome to the future of industrial mobility with the...
Made to Order · 4-6 Wk
Hamilton Maxi-Duty Swivel Caster with 8" x 4" Forged Steel Wheel with 1 1/4" Precision Tapered Roller Bearings Hamilton
Made in USA
Hamilton S-MD-84FST 8" x 4" Forged Steel Swivel Caster – 17000 lb | CasterHQ from $970.00 USD
Bulk Pricing
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Diameter 8"
Mount Plate
More Details Less Details
Width 4"
Temp Range -20°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Hamilton Maxi-Duty Swivel Caster with 8" x 4" Forged Steel Wheel with 1 1/4"...
View Details
Made to Order · 4-6 Wk
Hamilton 10,000 lbs. Enhanced Precision Super Duty Swivel Caster - 8"x4" Forged Steel V-Grooved Wheel - 1 1/4" Tapered Roller Bearing - S-EPSD-84FVT CasterHQ
Made in USA
Hamilton S-EPSD-84FVT 8"x4" Forged Steel Swivel Caster – 10,000 lb | CasterHQ from $992.00 USD
Bulk Pricing
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Diameter 8"
Capacity 10000 lbs
More Details Less Details
Width 4"
Temp Range -20°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Hamilton Enhanced Precision Swivel Caster S-EPSD-84FVT Hamilton 10,000 lbs. Enhanced Precision Super Duty Swivel...
View Details
Made to Order · 4-6 Wk
S-EPSD-84FVH Hamilton Enhanced Precision | Super Duty Swivel Caster with 8"x4" Forged Steel V-Grooved Wheel | 1 1/2" Roller Bearing for Advanced Industrial Mobility Hamilton
Made in USA
Hamilton S-EPSD-84FVH 8"x4" Forged Steel Swivel Caster – 1 1/2" Roller | CasterHQ $839.00 USD
Bulk Pricing
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Diameter 8"
Mount Plate
More Details Less Details
Width 4"
Temp Range -20°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
S-EPSD-84FVH Hamilton Enhanced Precision Super Duty Swivel Caster Introducing the S-EPSD-84FVH Hamilton Enhanced Precision...
Made to Order · 4-6 Wk
Hamilton Enhanced Maxi-Duty Swivel Caster with Dual 8" x 4" Forged Steel Wheels with 1 1/2" Precision Tapered Roller Bearing Hamilton
Made in USA
Hamilton EMD2-84FST 8" x 4" Forged Steel Swivel Dual Wheel Caster – 40000 lb | CasterHQ from $4,301.00 USD
Bulk Pricing
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Diameter 8"
Mount Plate
More Details Less Details
Width 4"
Temp Range -20°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Hamilton Enhanced Maxi-Duty Swivel Caster with Dual 8" x 4" Forged Steel Wheels with...
View Details
Made to Order · 4-6 Wk
Hamilton Ultra Maxi-Duty Dual-Wheel Rigid Caster with 8" x 4" Forged Steel Wheel with 1 1/2" Precision Tapered Roller Bearing Hamilton
Made in USA
Hamilton R-UMD2-84FST 8" x 4" Forged Steel Rigid Dual Wheel Caster – 27200 lb | CasterHQ $4,759.00 USD
Bulk Pricing
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Diameter 8"
Capacity 27200 lbs
Mount Plate
More Details Less Details
Width 4"
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 8" x 4" Forged Steel Wheel with...
Made to Order · 4-6 Wk
Hamilton Maxi-Duty Rigid Caster - 8x4 Forged Steel Wheel, High Heat 750°F Capacity, 7000 lbs Load - Stainless Steel Precision Bearings Hamilton
Made in USA
Hamilton 8" x 4" Forged Steel Rigid Caster – 7000 lb | CasterHQ $977.00 USD
Bulk Pricing
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Diameter 8"
Capacity 7000 lbs
More Details Less Details
Width 4"
Temp Range Up to 750°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
Hamilton High Heat Maxi-Duty Rigid Caster Engineered for High-Temperature Performance | Unmatched Durability &...

Hamilton 8″ x 4″ series breakdown

Series Construction Capacity Application
UltraGlide Quad-Wheel Swivel (1-1/4″ ball bearing) 4 polyurethane wheels on shared platform Up to 4,000 lb (4-wheel) Smooth indoor concrete, low-deflection daily use
UltraGlide Quad-Wheel Swivel (1-1/4″ sealed bearing) 4 poly wheels, sealed bearings Up to 4,000 lb (4-wheel) Washdown environments, sealed bearing protection
UltraGlide Rigid Quad-Wheel 4 poly wheels, rigid yoke Up to 4,000 lb 2 swivel + 2 rigid cart patterns with UltraGlide
EPSD-84-FVH Forged Steel Single forged steel V-grooved 10,000 lb Heaviest 8″ x 4″ spec for V-rail track
Polyurethane on Cast Iron Replacement Single poly on iron wheel 6,500 lb Wheel-only replacement for heavy industrial yokes

What is the UltraGlide Quad-Wheel and why is it different?

Standard heavy industrial casters use one wheel per caster — load deflection at the wheel face is concentrated on a single contact patch. Hamilton’s UltraGlide Quad-Wheel uses four smaller wheels mounted on a shared platform under a single yoke — load distributes across four contact patches, dramatically reducing wheel deflection at the same total capacity. The result: lower rolling resistance under load (the cart pushes easier) and longer wheel service life. The trade-off is more complexity per caster and slightly higher cost.

Ball bearing vs sealed bearing UltraGlide?

Ball bearing (open) for indoor dry environments with regular maintenance — the bearings need periodic lubrication. Sealed bearing for washdown, outdoor, or hard-to-maintain applications where contamination is the risk — the sealed assembly is maintenance-free for typical service life. Sealed costs about 15-20% more than open ball bearing.

When does the 6,500 lb poly-on-iron replacement wheel get used?

Wheel-only replacement for existing 8″ x 4″ heavy industrial caster yokes where the polyurethane tread has worn through but the yoke and bearing assembly are still tight. Common on foundry and steel mill carts that see continuous heavy duty. Costs about 35-45% of a full caster replacement.

Cross-reference Hamilton 8″ x 4″ part numbers?

Bring a Hamilton EPSD, UltraGlide, or W-series part number to info@casterhq.com for direct cross-reference. Common cross-references include Albion 9-Series, Caster Concepts ZF heavy industrial, and Faultless 1900 series. One business day response for engineer-verified cross-reference.

Hamilton UltraGlide AuthorizedBoth ball-bearing and sealed-bearing variants stocked. Direct Hamilton manufacturer warranty.
Forged Steel V-Grooved StockedEPSD-FVH series for V-rail track applications. 10,000 lb capacity.
Cross-Reference SupportAlbion, Caster Concepts, Faultless competitor matching at info@casterhq.com.

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