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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" x 2" Polyurethane Caster Kits

Diameter: 4 inTread: 2 inPlate: 4 x 4-1/2 inCapacity: 800 lb per caster
This page lists 4 x 2 in polyurethane caster kits. Polyurethane on cast iron cores is the most common tread on these 4 x 2 in polyurethane caster kits, rated 800 lb per caster.
2800 lbs
TieredPricing
4 Inch x 2 Inch Tool Box Caster Kit - 4 Pack | 2800 lbs Total Capacity | Red Polyurethane Wheel CasterHQ
In Stock · Same/Next Day
4" x 2" Red Polyurethane Swivel & Rigid Caster Set · 2,800 lb set of 4
Part # HQ-2040-PL1-PIR-2SB2R-RS
from $123.00
Volume pricing available
PolyurethanePlate
Load rating
2800 lbs
Size4" x 2"
Capacity2800 lbs
WheelPolyurethane
MountPlate 4" x 4-1/2"
TypeSwivel with Brake, Rigid · Side Lock Brake
More Details Less Details
Width 2"
Height 5-5/8"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Core Iron
Temp Range -50°F to 180°F
Rig Type Swivel with Brake, Rigid
Brake Side Lock Brake
Frame Zinc Plated Steel
4" X 2" Tool Box Kit - Red Polyurethane Wheel - 2,800 Lbs Capacity...
Shop Product
2800 lbs
TieredPricing
4 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 2800 lbs Total Capacity | Red Polyurethane Wheel CasterHQ
In Stock · Same/Next Day
4" x 2" Red Polyurethane Total Lock Caster Set · 2,800 lb set of 4
Part # HQ-2140-PL1-PIR-4TL-RS
from $237.00
Volume pricing available
PolyurethanePlate
Load rating
2800 lbs
Size4" x 2"
Capacity2800 lbs
WheelPolyurethane
MountPlate 4" x 4-1/2"
TypeTotal Lock Brake
More Details Less Details
Width 2"
Height 5-5/8"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Core Iron
Brake Total Lock Brake
Frame Zinc Plated Steel
4" x 2" Total Lock Caster Set of 4 with Red Polyurethane on Steel...
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2800 lbs
TieredPricing
4 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 2800 lbs Capacity | 2 Locking 2 Swivel Red Polyurethane CasterHQ
In Stock · Same/Next Day
4" x 2" Red Poly Total Lock Caster Set 4 Pack · Model HQ-2140-PL1-PIR-2TL2S-RS · 2,800 lb set of 4
Part # HQ-2140-PL1-PIR-2TL2S-RS
from $184.00
Volume pricing available
PolyurethanePlate
Load rating
2800 lbs
Size4" x 2"
Capacity2800 lbs
WheelPolyurethane
MountPlate 4" x 4-1/2"
TypeSwivel with Total Lock Brake
More Details Less Details
Width 2"
Height 5-5/8"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Core Iron
Rig Type Swivel with Total Lock Brake
Brake Total Lock Brake
Frame Zinc Plated Steel
4" x 2" Total Lock Caster Set of 4 - 2 Total Locking Swivel...
Shop Product
2800 lbs
TieredPricing
4 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 2800 lbs Capacity | 2 Locking 2 Rigid Red Polyurethane CasterHQ
In Stock · Same/Next Day
4" x 2" Red Poly Total Lock Caster Set 4 Pack · Model HQ-2140-PL1-PIR-2TL2R-RS · 2,800 lb set of 4
Part # HQ-2140-PL1-PIR-2TL2R-RS
from $178.00
Volume pricing available
PolyurethanePlate
Load rating
2800 lbs
Size4" x 2"
Capacity2800 lbs
WheelPolyurethane
MountPlate 4" x 4-1/2"
TypeTotal Lock Brake
More Details Less Details
Width 2"
Height 5-5/8"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Core Iron
Brake Total Lock Brake
Frame Zinc Plated Steel
4" x 2" Total Lock Caster Set of 4 - 2 Total Locking Swivel...
Shop Product
800 lbs
TieredPricing
MEDIUM DUTY 4"X 2" CROWN POLYURETHANE ON IRON WHEEL - SWIVEL CASTER 800 lbs Capacity CasterHQ
In Stock · Same/Next Day
4" x 2" Polyurethane on Iron Swivel Caster – 800 lb
Part # MD4X2SPIR
from $46.00
Volume pricing available
Polyurethane
Load rating
800 lbs
Size4" x 2"
Capacity800 lbs
WheelPolyurethane
Mount—
TypeSwivel
More Details Less Details
Width 2"
Height 5-5/8"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Core Iron
Temp Range -40°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
4" X 2" POLYFLEXON CAST IRON SWIVEL CASTERCaster HQ's Polyurethane Elastomer tread chemically bonded...
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800 lbs
TieredPricing
MEDIUM DUTY 4"X 2" CROWN POLYURETHANE ON IRON WHEEL - RIGID CASTER 800 lbs Capacity CasterHQ
In Stock · Same/Next Day
4" x 2" Polyurethane Rigid Caster 4" x 4-1/2" Plate – 800 lb
Part # MD4X2RPIR
from $42.00
Volume pricing available
PolyurethanePlate
Load rating
800 lbs
Size4" x 2"
Capacity800 lbs
WheelPolyurethane
MountPlate 4" x 4-1/2"
TypeRigid
More Details Less Details
Width 2"
Height 5-5/8"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Core Iron
Temp Range -40°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
POLYFLEXON CAST IRON RIGID CASTERCaster HQ's Polyurethane Elastomer tread chemically bonded to cast ironcore...
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800 lbs
TieredPricing
MEDIUM DUTY 4"X 2" RED POLYURETHANE ON IRON WHEEL - SWIVEL CASTER 800 lbs Capacity CasterHQ
In Stock · Same/Next Day
4" x 2" Red Polyurethane Swivel Caster 4" x 4-1/2" Plate – 800 lb
Part # HQ2040S-PL1-PIR-RED
from $36.00
Volume pricing available
PolyurethanePlate
Load rating
800 lbs
Size4" x 2"
Capacity800 lbs
WheelPolyurethane
MountPlate 4" x 4-1/2"
TypeSwivel
More Details Less Details
Width 2"
Height 5-5/8"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Core Iron
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
MEDIUM DUTY 4"X 2" RED POLYURETHANE ON IRON WHEEL - SWIVEL CASTER 800 lbs...
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800 lbs
TieredPricing
4" Rigid Caster | Polyurethane Tread Metal Wheel - 700 lbs Capacity CasterHQ
In Stock · Same/Next Day
4" x 2" Polyurethane Rigid Caster – 800 lb
Part # HQ2040R-PL1-PIR-RED
from $31.00
Volume pricing available
PolyurethanePlate
Load rating
800 lbs
Size4" x 2"
Capacity800 lbs
WheelPolyurethane
MountPlate 4" x 4-1/2"
TypeRigid
More Details Less Details
Width 2"
Height 5-5/8"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Core Iron
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
4" Rigid Caster | Polyurethane Tread Metal Wheel - 700 lbs Capacity3/4" Roller Bearing...
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4 x 2 in polyurethane caster kits by tread

Tread Core Wheel sizes Rated per caster Listed temperature Where it fits
Polyurethane Cast iron 4 in 800 lb -40°F to 180°F quiet, floor-friendly and long wearing

Ratings are for single casters of 4 x 2 in polyurethane caster kits, from product fields [S1].

Choosing 4 x 2 in polyurethane caster kits

  1. Load: divide the loaded weight by three for a four-caster cart [S2]; at 800 lb each, 4 x 2 in polyurethane caster kits suit a loaded cart of about 2,400 lb.
  2. Mount: most 4 x 2 in polyurethane caster kits use a 4 x 4-1/2 in top plate; measure bolt hole centers on the old plate and compare.
  3. Floor: on 4 x 2 in polyurethane caster kits, polyurethane protects finished floors and runs quietly; check the rating if the cart also crosses rough concrete.
  4. Rig: swivel and rigid 4 x 2 in polyurethane caster kits are listed, with total lock brake and side lock brake options.

Related to 4 x 2 in polyurethane caster kits: red poly on iron casters.

4 x 2 in polyurethane caster kits questions

How much weight can 4 x 2 in polyurethane caster kits carry?

Single 4 x 2 in polyurethane caster kits are rated 800 lb.

What top plate do 4 x 2 in polyurethane caster kits use?

Most 4 x 2 in polyurethane caster kits use 4 x 4-1/2 in.

What wheel material is most common on 4 x 2 in polyurethane caster kits?

Polyurethane leads on 4 x 2 in polyurethane caster kits, rated 800 lb per caster.

Jordan Wilson, CasterHQ · reviewed October 20, 2026 · 844-439-4335 · info@casterhq.com

Sources

  • [S1] CasterHQ product fields (rated load, diameter, width, wheel and core material, temperature range, mount) and product descriptions for the items on this page, pulled October 20, 2026.
  • [S2] Preferred Equipment casters and wheels quick guide PDF (prefeq.com): load sizing on one less caster, wheel types and floor notes.

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