W/ RED POLY ON IRON WHEELS - CasterHQ

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Red Polyurethane on Iron Casters (Swivel & Rigid)

Heavy-duty polyurethane-on-iron caster wheels built for high-cycle cart and equipment movement where you want capacity + floor protection without the harshness of all-metal wheels. Commonly specified for manufacturing, MRO fleets, and commercial carts.

Typical wheel sizes: 4"–8". Typical capacities: up to ~1,250 lb/caster (model dependent).

Procurement-ready summary (model dependent)

Wheel construction

Polyurethane tread bonded to iron core

Primary benefit

High load capacity with improved floor protection vs. steel/iron tread

Typical durometer

~95A (varies by wheel)

Use environments

Indoor/outdoor; iron core can surface-rust in wet service

Best floors

Sealed concrete, epoxy, tile, smooth shop floors

Typical applications

Carts, racks, fixtures, fabrication shops, plant maintenance

Engineering notes: why polyurethane on iron

Capacity: iron core carries load; polyurethane provides a resilient tread layer.
Floor protection: reduces point loading and surface marring vs. steel tread.
Noise/vibration: quieter than metal wheels; still firmer than rubber/TPR.
Push force: generally lower than soft rubber under heavy load, especially on smooth floors.

Selection guidance for engineers & buyers

Swivel vs rigid: use rigid casters for tracking stability; use swivels for maneuvering; common builds are 2 swivel + 2 rigid.
Wheel diameter: larger diameters reduce rolling resistance and handle joints/debris better.
Bearings: ball/roller options change start-up effort and heat under continuous duty (choose per load + duty cycle).
Floor condition: rough concrete increases tread wear—consider harder compounds or larger diameter if abuse is high.

Specify another wheel material when…

Need maximum floor protection / quiet roll → consider Rubber or Soft TPR/TPE.
Need low cost + high capacity on smooth floors → consider Phenolic.
Need extreme temperature / harsh abrasion → consider Steel or other metal wheels.

Video: polyurethane wheel overview

Caster Engineering Tools

These calculators apply to any caster application—even if you’re browsing a different category. Use them to estimate load rating per caster, select wheel material, and estimate push/pull force. Expand any tool for full analysis + a share-ready spec line.

Get Application Help Open Engineering Tools Hub

CasterSpec^™ Load Calculator

Fast estimate. Expand for safety factor + uneven floor + spec output.

▾ Expand full calculator

Load

Total load (lb)

# casters

Floor / bumps

Copied.

WheelMatch^™ Material Selector

Fast recommendation. Expand for noise, duty cycle, floor protection.

▾ Expand full selector

Wheel

Floor

Environment

Copied.

PushForce^™ Push/Pull Calculator

Estimate effort fast. Expand for operators, materials, bumps, startup mode.

▾ Expand full push/pull

Push

Load (lb)

Wheel Ø

Floor

Copied.

More engineering tools ▾

Engineering Tools Hub

All tools + dedicated pages (best for sharing and EEAT). Open hub

Load Calculator (dedicated)

Share this page when discussing load rating per caster. Open load tool

Wheel Diameter Calculator

Publish the dedicated page, then replace this link. Find in hub

Failure Diagnosis Tool

Publish the dedicated page, then replace this link. Find in hub

Available Configurations

MEDIUM DUTY 4"X 2" RED POLYURETHANE ON IRON WHEEL - SWIVEL CASTER 800 lbs Capacity CasterHQ

MEDIUM DUTY 4"X 2" RED POLYURETHANE ON IRON WHEEL - SWIVEL CASTER 800 lbs Capacity

MEDIUM DUTY 4"X 2" RED POLYURETHANE ON IRON WHEEL - SWIVEL CASTER 800 lbs Capacity $36.00 USD

4" Rigid Caster | Polyurethane Tread Metal Wheel - 700 lbs Capacity CasterHQ

4" Rigid Caster | Polyurethane Tread Metal Wheel - 700 lbs Capacity

4" Rigid Caster | Polyurethane Tread Metal Wheel - 700 lbs Capacity $31.00 USD

MEDIUM DUTY 4"X 2" CROWN POLYURETHANE ON IRON WHEEL - SWIVEL CASTER 800 lbs Capacity CasterHQ

MEDIUM DUTY 4"X 2" CROWN POLYURETHANE ON IRON WHEEL - SWIVEL CASTER 800 lbs Capacity

MEDIUM DUTY 4"X 2" CROWN POLYURETHANE ON IRON WHEEL - SWIVEL CASTER 800 lbs Capacity from $46.00 USD

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MEDIUM DUTY 4"X 2" CROWN POLYURETHANE ON IRON WHEEL - RIGID CASTER 800 lbs Capacity CasterHQ

MEDIUM DUTY 4"X 2" CROWN POLYURETHANE ON IRON WHEEL - RIGID CASTER 800 lbs Capacity

MEDIUM DUTY 4"X 2" CROWN POLYURETHANE ON IRON WHEEL - RIGID CASTER 800 lbs Capacity from $42.00 USD

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MEDIUM DUTY 5"X 2" RED POLYURETHANE ON IRON WHEEL - SWIVEL CASTER 1,100 lbs Capacity CasterHQ

MEDIUM DUTY 5"X 2" RED POLYURETHANE ON IRON WHEEL - SWIVEL CASTER 1,100 lbs Capacity

MEDIUM DUTY 5"X 2" RED POLYURETHANE ON IRON WHEEL - SWIVEL CASTER 1,100 lbs Capacity $41.00 USD

MEDIUM DUTY 5"X 2" RED POLYURETHANE ON IRON WHEEL - SWIVEL CASTER WITH BRAKE 1,100 lbs Capacity CasterHQ

MEDIUM DUTY 5"X 2" RED POLYURETHANE ON IRON WHEEL - SWIVEL CASTER WITH BRAKE 1,100 lbs Capacity

MEDIUM DUTY 5"X 2" RED POLYURETHANE ON IRON WHEEL - SWIVEL CASTER WITH BRAKE 1,100 lbs Capacity $46.00 USD

MEDIUM DUTY 5"X 2" RED POLYURETHANE ON IRON WHEEL - RIGID CASTER 1,100 lbs Capacity CasterHQ

MEDIUM DUTY 5"X 2" RED POLYURETHANE ON IRON WHEEL - RIGID CASTER 1,100 lbs Capacity

MEDIUM DUTY 5"X 2" RED POLYURETHANE ON IRON WHEEL - RIGID CASTER 1,100 lbs Capacity $36.00 USD

MEDIUM DUTY 5"X 2" CROWN POLYURETHANE ON IRON WHEEL - SWIVEL CASTER 800 lbs Capacity CasterHQ

MEDIUM DUTY 5"X 2" CROWN POLYURETHANE ON IRON WHEEL - SWIVEL CASTER 800 lbs Capacity

MEDIUM DUTY 5"X 2" CROWN POLYURETHANE ON IRON WHEEL - SWIVEL CASTER 800 lbs Capacity from $51.00 USD

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MEDIUM DUTY 5"X 2" CROWN POLYURETHANE ON IRON WHEEL - RIGID CASTER 800 lbs Capacity CasterHQ

MEDIUM DUTY 5"X 2" CROWN POLYURETHANE ON IRON WHEEL - RIGID CASTER 800 lbs Capacity

MEDIUM DUTY 5"X 2" CROWN POLYURETHANE ON IRON WHEEL - RIGID CASTER 800 lbs Capacity from $45.00 USD

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5 Inch x 2 Inch Swivel Caster - 1100 lbs Capacity | Polyurethane on Iron Wheel | Plate Mount CasterHQ

5 Inch x 2 Inch Swivel Caster - 1100 lbs Capacity | Polyurethane on Iron Wheel | Plate Mount

5 Inch x 2 Inch Swivel Caster - 1100 lbs Capacity | Polyurethane on Iron Wheel | Plate Mount from $49.00 USD

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5" x 2" Swivel Caster with Brake | Polyurethane on Iron Wheel | 1100 lbs Capacity | 4" x 4-1/2" Mounting Plate CasterHQ

5" x 2" Swivel Caster with Brake | Polyurethane on Iron Wheel | 1100 lbs Capacity | 4" x 4-1/2" Mounting Plate

5" x 2" Swivel Caster with Brake | Polyurethane on Iron Wheel | 1100 lbs Capacity | 4" x 4-1/2" Mounting Plate from $55.00 USD

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5" x 2" Rigid Caster with Polyurethane on Iron Wheel | 1100 lbs Capacity | 4" x 4-1/2" Mounting Plate CasterHQ

5" x 2" Rigid Caster with Polyurethane on Iron Wheel | 1100 lbs Capacity | 4" x 4-1/2" Mounting Plate

5" x 2" Rigid Caster with Polyurethane on Iron Wheel | 1100 lbs Capacity | 4" x 4-1/2" Mounting Plate from $36.00 USD

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MEDIUM DUTY 6"X 2" RED POLYURETHANE ON IRON WHEEL - SWIVEL CASTER 1,200 lbs Capacity CasterHQ

MEDIUM DUTY 6"X 2" RED POLYURETHANE ON IRON WHEEL - SWIVEL CASTER 1,200 lbs Capacity

MEDIUM DUTY 6"X 2" RED POLYURETHANE ON IRON WHEEL - SWIVEL CASTER 1,200 lbs Capacity $48.00 USD

MEDIUM DUTY 6"X 2" RED POLYURETHANE ON IRON WHEEL - RIGID CASTER 1,200 lbs Capacity CasterHQ

MEDIUM DUTY 6"X 2" RED POLYURETHANE ON IRON WHEEL - RIGID CASTER 1,200 lbs Capacity

MEDIUM DUTY 6"X 2" RED POLYURETHANE ON IRON WHEEL - RIGID CASTER 1,200 lbs Capacity from $38.00 USD

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6 Inch x 2 Inch Medium Duty Crown Polyurethane Swivel Caster - 900 lbs Capacity | Iron Wheel CasterHQ

6 Inch x 2 Inch Medium Duty Crown Polyurethane Swivel Caster - 900 lbs Capacity | Iron Wheel

6 Inch x 2 Inch Medium Duty Crown Polyurethane Swivel Caster - 900 lbs Capacity | Iron Wheel from $70.00 USD

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MEDIUM DUTY 6"X 2" CROWN POLYURETHANE ON IRON WHEEL - RIGID CASTER 900 lbs Capacity CasterHQ

MEDIUM DUTY 6"X 2" CROWN POLYURETHANE ON IRON WHEEL - RIGID CASTER 900 lbs Capacity

MEDIUM DUTY 6"X 2" CROWN POLYURETHANE ON IRON WHEEL - RIGID CASTER 900 lbs Capacity from $66.00 USD

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MEDIUM DUTY 8"X 2" RED POLYURETHANE ON IRON WHEEL - SWIVEL CASTER 1,250 lbs Capacity CasterHQ

MEDIUM DUTY 8"X 2" RED POLYURETHANE ON IRON WHEEL - SWIVEL CASTER 1,250 lbs Capacity

MEDIUM DUTY 8"X 2" RED POLYURETHANE ON IRON WHEEL - SWIVEL CASTER 1,250 lbs Capacity $57.00 USD

MEDIUM DUTY 8"X 2" RED POLYURETHANE ON IRON WHEEL - RIGID CASTER 1,250 lbs Capacity CasterHQ

MEDIUM DUTY 8"X 2" RED POLYURETHANE ON IRON WHEEL - RIGID CASTER 1,250 lbs Capacity

MEDIUM DUTY 8"X 2" RED POLYURETHANE ON IRON WHEEL - RIGID CASTER 1,250 lbs Capacity from $52.00 USD

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MEDIUM DUTY 8"X 2" CROWN POLYURETHANE ON IRON WHEEL - SWIVEL CASTER 900 lbs Capacity CasterHQ

MEDIUM DUTY 8"X 2" CROWN POLYURETHANE ON IRON WHEEL - SWIVEL CASTER 900 lbs Capacity

MEDIUM DUTY 8"X 2" CROWN POLYURETHANE ON IRON WHEEL - SWIVEL CASTER 900 lbs Capacity from $74.00 USD

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MEDIUM DUTY 8"X 2" CROWN POLYURETHANE ON IRON WHEEL - RIGID CASTER 900 lbs Capacity CasterHQ

MEDIUM DUTY 8"X 2" CROWN POLYURETHANE ON IRON WHEEL - RIGID CASTER 900 lbs Capacity

MEDIUM DUTY 8"X 2" CROWN POLYURETHANE ON IRON WHEEL - RIGID CASTER 900 lbs Capacity from $70.00 USD

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4 Inch x 2 Inch Tool Box Caster Kit - 4 Pack | 2800 lbs Total Capacity | Red Polyurethane Wheel CasterHQ

4 Inch x 2 Inch Tool Box Caster Kit - 4 Pack | 2800 lbs Total Capacity | Red Polyurethane Wheel

4 Inch x 2 Inch Tool Box Caster Kit - 4 Pack | 2800 lbs Total Capacity | Red Polyurethane Wheel from $123.00 USD

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4 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 2800 lbs Capacity | 2 Locking 2 Swivel Red Polyurethane CasterHQ

4 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 2800 lbs Capacity | 2 Locking 2 Swivel Red Polyurethane

4 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 2800 lbs Capacity | 2 Locking 2 Swivel Red Polyurethane from $184.00 USD

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4 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 2800 lbs Capacity | 2 Locking 2 Rigid Red Polyurethane CasterHQ

4 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 2800 lbs Capacity | 2 Locking 2 Rigid Red Polyurethane

4 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 2800 lbs Capacity | 2 Locking 2 Rigid Red Polyurethane from $178.00 USD

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4 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 2800 lbs Total Capacity | Red Polyurethane Wheel CasterHQ

4 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 2800 lbs Total Capacity | Red Polyurethane Wheel

4 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 2800 lbs Total Capacity | Red Polyurethane Wheel from $237.00 USD

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5 Inch x 2 Inch Swivel Caster Set with Brakes - 4 Pack | 4000 lbs Total Capacity | Red Polyurethane CasterHQ

5 Inch x 2 Inch Swivel Caster Set with Brakes - 4 Pack | 4000 lbs Total Capacity | Red Polyurethane

5 Inch x 2 Inch Swivel Caster Set with Brakes - 4 Pack | 4000 lbs Total Capacity | Red Polyurethane from $144.00 USD

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5 Inch x 2 Inch Tool Box Caster Kit - 4 Pack | 4000 lbs Total Capacity | Red Polyurethane Wheel CasterHQ

5 Inch x 2 Inch Tool Box Caster Kit - 4 Pack | 4000 lbs Total Capacity | Red Polyurethane Wheel

5 Inch x 2 Inch Tool Box Caster Kit - 4 Pack | 4000 lbs Total Capacity | Red Polyurethane Wheel from $144.00 USD

SELECT OPTIONS

5 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 4000 lbs Capacity | 2 Locking 2 Swivel Red Polyurethane CasterHQ

5 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 4000 lbs Capacity | 2 Locking 2 Swivel Red Polyurethane

5 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 4000 lbs Capacity | 2 Locking 2 Swivel Red Polyurethane from $210.00 USD

SELECT OPTIONS

5 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 4000 lbs Capacity | 2 Locking 2 Rigid Red Polyurethane CasterHQ

5 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 4000 lbs Capacity | 2 Locking 2 Rigid Red Polyurethane

5 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 4000 lbs Capacity | 2 Locking 2 Rigid Red Polyurethane from $199.00 USD

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5 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 4000 lbs Total Capacity | Red Polyurethane Wheel CasterHQ

5 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 4000 lbs Total Capacity | Red Polyurethane Wheel

5 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 4000 lbs Total Capacity | Red Polyurethane Wheel from $272.00 USD

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6 Inch x 2 Inch Tool Box Caster Kit - 4 Pack | 5000 lbs Total Capacity | Red Polyurethane Wheel CasterHQ

6 Inch x 2 Inch Tool Box Caster Kit - 4 Pack | 5000 lbs Total Capacity | Red Polyurethane Wheel

6 Inch x 2 Inch Tool Box Caster Kit - 4 Pack | 5000 lbs Total Capacity | Red Polyurethane Wheel $155.00 USD

6" X 2" Tool Box Kit - Red Polyurethane Wheel - 5,000 Lbs Capacity Per Set of 4 CasterHQ

6" X 2" Tool Box Kit - Red Polyurethane Wheel - 5,000 Lbs Capacity Per Set of 4

6" X 2" Tool Box Kit - Red Polyurethane Wheel - 5,000 Lbs Capacity Per Set of 4 $169.00 USD

6" x 2" Total Lock Caster Set of 4 - 2 Total Locking Swivel & 2 Plain Swivel with Red Polyurethane on Steel Wheel - 4,800 lbs Capacity Set of 4 CasterHQ

6" x 2" Total Lock Caster Set of 4 - 2 Total Locking Swivel & 2 Plain Swivel with Red Polyurethane on Steel Wheel - 4,800 lbs Capacity Set of 4

6" x 2" Total Lock Caster Set of 4 - 2 Total Locking Swivel & 2 Plain Swivel with Red Polyurethane on Steel Wheel - 4,800 lbs Capacity Set of 4 from $230.00 USD

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6 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 4800 lbs Capacity | 2 Locking 2 Rigid Red Polyurethane CasterHQ

6 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 4800 lbs Capacity | 2 Locking 2 Rigid Red Polyurethane

6 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 4800 lbs Capacity | 2 Locking 2 Rigid Red Polyurethane from $212.00 USD

SELECT OPTIONS

6 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 4800 lbs Total Capacity | Red Polyurethane Wheel CasterHQ

6 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 4800 lbs Total Capacity | Red Polyurethane Wheel

6 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 4800 lbs Total Capacity | Red Polyurethane Wheel from $286.00 USD

SELECT OPTIONS

8 Inch x 2 Inch Tool Box Caster Kit - 4 Pack | 5000 lbs Total Capacity | Red Polyurethane Wheel CasterHQ

8 Inch x 2 Inch Tool Box Caster Kit - 4 Pack | 5000 lbs Total Capacity | Red Polyurethane Wheel

8 Inch x 2 Inch Tool Box Caster Kit - 4 Pack | 5000 lbs Total Capacity | Red Polyurethane Wheel from $171.00 USD

SELECT OPTIONS

8 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 5000 lbs Total Capacity | Red Polyurethane Wheel CasterHQ

8 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 5000 lbs Total Capacity | Red Polyurethane Wheel

8 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 5000 lbs Total Capacity | Red Polyurethane Wheel from $335.00 USD

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8" x 2" Total Lock Caster Set of 4 - 2 Total Locking Casters & 2 Rigid Casters with Red Polyurethane on Steel Wheel - 5,000 lbs Capacity Per Set of 4 CasterHQ

8" x 2" Total Lock Caster Set of 4 - 2 Total Locking Casters & 2 Rigid Casters with Red Polyurethane on Steel Wheel - 5,000 lbs Capacity Per Set of 4

8" x 2" Total Lock Caster Set of 4 - 2 Total Locking Casters & 2 Rigid Casters with Red Polyurethane on Steel Wheel - 5,000 lbs Capacity Per Set of 4 from $260.00 USD

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8" x 2" Total Lock Caster Set of 4 - 2 Total Locking Casters & 2 Swivel Casters with Red Polyurethane on Steel Wheel - 5,000 lbs Capacity Per Set of 4 CasterHQ

8" x 2" Total Lock Caster Set of 4 - 2 Total Locking Casters & 2 Swivel Casters with Red Polyurethane on Steel Wheel - 5,000 lbs Capacity Per Set of 4

8" x 2" Total Lock Caster Set of 4 - 2 Total Locking Casters & 2 Swivel Casters with Red Polyurethane on Steel Wheel - 5,000 lbs Capacity Per Set of 4 from $275.00 USD

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