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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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6" x 2" Polyurethane Casters

Diameter: 6 inTread: 2 inPlate: 4 x 4-1/2 inCapacity: 900 to 1,200 lb per caster
This page lists 6 x 2 in red polyurethane casters. Polyurethane on cast iron cores is the most common tread here, rated 900 to 1,200 lb per caster. Sets of 4 list 4,800 to 5,000 lb combined.
5000 lbs
TieredPricing
6 Inch x 2 Inch Tool Box Caster Kit - 4 Pack | 5000 lbs Total Capacity | Red Polyurethane Wheel CasterHQ
In Stock · Same/Next Day
6" x 2" Red Polyurethane Swivel & Rigid Caster · 5,000 lb set of 4
Part # HQ-2060-PL1-PIR-2SB2R-RS
from $155.00
Volume pricing available
PolyurethanePlate
Load rating
5000 lbs
Size6" x 2"
Capacity5000 lbs
WheelPolyurethane
MountPlate 4" x 4-1/2"
TypeSwivel with Brake, Rigid · Side Lock Brake
More Details Less Details
Width 2"
Height 7-1/2"
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
6" X 2" Tool Box Kit - Red Polyurethane Wheel - 5,000 Lbs Capacity...
Shop Product
4800 lbs
TieredPricing
6 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 4800 lbs Total Capacity | Red Polyurethane Wheel CasterHQ
In Stock · Same/Next Day
6" x 2" Red Polyurethane Total Lock Caster Set 4 Pack · 4,800 lb set of 4
Part # HQ-2160-PL1-PIR-4TL-RS
from $286.00
Volume pricing available
PolyurethanePlate
Load rating
4800 lbs
Size6" x 2"
Capacity4800 lbs
WheelPolyurethane
MountPlate 4" x 4-1/2"
Type—
More Details Less Details
Width 2"
Height 7-1/2"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Core Iron
Frame Zinc Plated Steel
6" x 2" Total Lock Caster Set of 4 with Red Polyurethane on Steel...
Shop Product
4800 lbs
TieredPricing
6 Inch x 2 Inch Total Lock Caster Set - 4 Pack | 4800 lbs Capacity | 2 Locking 2 Rigid Red Polyurethane CasterHQ
In Stock · Same/Next Day
6" x 2" Red Poly Total Lock Caster Set 2 Swivel & 2 Rigid · 4,800 lb set of 4
Part # HQ-2160-PL1-PIR-2TL2R-RS
from $212.00
Volume pricing available
PolyurethanePlate
Load rating
4800 lbs
Size6" x 2"
Capacity4800 lbs
WheelPolyurethane
MountPlate 4" x 4-1/2"
Type—
More Details Less Details
Width 2"
Height 7-1/2"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Core Iron
Frame Zinc Plated Steel
6" x 2" Total Lock Caster Set - 2 Total Locking Swivel & 2...
Shop Product
4800 lbs
TieredPricing
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
In Stock · Same/Next Day
6" x 2" Red Poly on Steel Total Lock Caster Set · 4,800 lb set of 4
Part # HQ-2160-PL1-PIR-2TL2S-RS
from $230.00
Volume pricing available
PolyurethanePlate
Load rating
4800 lbs
Size6" x 2"
Capacity4800 lbs
WheelPolyurethane
MountPlate 4" x 4-1/2"
TypeSwivel with Total Lock Brake
More Details Less Details
Width 2"
Height 7-1/2"
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
6" x 2" Total Lock Caster Set - 2 Total Locking Swivel & 2...
Shop Product
1200 lbs
TieredPricing
MEDIUM DUTY 6"X 2" RED POLYURETHANE ON IRON WHEEL - SWIVEL CASTER 1,200 lbs Capacity CasterHQ
In Stock · Same/Next Day
6" x 2" Polyurethane on Iron Swivel Caster 4" x 4-1/2" Plate – 1,200 lb
Part # HQ2060S-PL1-PIR-RED
from $65.00
Volume pricing available
PolyurethanePlate
Load rating
1200 lbs
Size6" x 2"
Capacity1200 lbs
WheelPolyurethane
MountPlate 4" x 4-1/2"
TypeSwivel
More Details Less Details
Width 2"
Height 7-1/2"
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
MEDIUM DUTY 6"X 2" RED POLYURETHANE ON IRON WHEEL - SWIVEL CASTER 1,200 lbs...
Shop Product
1200 lbs
TieredPricing
MEDIUM DUTY 6"X 2" RED POLYURETHANE ON IRON WHEEL - RIGID CASTER 1,200 lbs Capacity CasterHQ
In Stock · Same/Next Day
6" x 2" Polyurethane on Iron Rigid Caster 4" x 4-1/2" Plate – 1,200 lb
Part # HQ2060R-PL1-PIR-RED
from $45.00
Volume pricing available
PolyurethanePlate
Load rating
1200 lbs
Size6" x 2"
Capacity1200 lbs
WheelPolyurethane
MountPlate 4" x 4-1/2"
TypeRigid
More Details Less Details
Width 2"
Height 7-1/2"
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
MEDIUM DUTY 6"X 2" RED POLYURETHANE ON IRON WHEEL - RIGID CASTER 1,200 lbs...
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900 lbs
TieredPricing
6 Inch x 2 Inch Medium Duty Crown Polyurethane Swivel Caster - 900 lbs Capacity | Iron Wheel CasterHQ
In Stock · Same/Next Day
6" x 2" Polyurethane Iron Swivel Caster – 900 lb
Part # MD6X2SPIR
from $70.00
Volume pricing available
PolyurethanePlate
Load rating
900 lbs
Size6" x 2"
Capacity900 lbs
WheelPolyurethane
MountPlate 4" x 4-1/2"
TypeSwivel
More Details Less Details
Width 2"
Height 7-1/2"
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
6" X 2" POLYFLEXON CAST IRON SWIVEL CASTERCasterHQ Polyurethane Elastomer tread chemically bonded to...
Shop Product
5,000 lbs
TieredPricing
6" X 2" Tool Box Kit - Red Polyurethane Wheel - 5,000 Lbs Capacity Per Set of 4 CasterHQ
In Stock · Same/Next Day
6" x 2" Red Polyurethane Swivel Caster Set · 5,000 lb set of 4
Part # HQ-2060-PL1-PIR-4SB-RS
from $169.00
Volume pricing available
PolyurethanePlate
Load rating
5,000 lbs
Size6" x 2"
Capacity5,000 lbs
WheelPolyurethane
MountPlate 4" x 4-1/2"
TypeRigid · Side Lock Brake
More Details Less Details
Width 2"
Height 7-1/2"
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 Rigid
Brake Side Lock Brake
Frame Zinc Plated Steel
6" X 2" Tool Box Kit - Red Polyurethane Wheel - 5,000 Lbs Capacity...
Shop Product
900 lbs
TieredPricing
MEDIUM DUTY 6"X 2" CROWN POLYURETHANE ON IRON WHEEL - RIGID CASTER 900 lbs Capacity CasterHQ
In Stock · Same/Next Day
6" x 2" Polyurethane Rigid Caster – 900 lb
Part # MD6X2RPIR
from $66.00
Volume pricing available
PolyurethanePlate
Load rating
900 lbs
Size6" x 2"
Capacity900 lbs
WheelPolyurethane
MountPlate 4" x 4-1/2"
TypeRigid
More Details Less Details
Width 2"
Height 7-1/2"
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
6" X 2" POLYFLEXON CAST IRON RIGID CASTERCasterHQ Polyurethane Elastomer tread chemically bonded to...
Shop Product

6 x 2 in red polyurethane casters by tread

Tread Core Wheel sizes Rated per caster Listed temperature Where it fits
Polyurethane Cast iron 6 in 900 to 1,200 lb -40°F to 180°F quiet, floor-friendly and long wearing

Ratings are for single casters of 6 x 2 in red polyurethane casters, from product fields [S1].

Choosing 6 x 2 in red polyurethane casters

  1. Load: divide the loaded weight by three for a four-caster cart [S2]. A 1,200 lb caster from this page then suits about 3,600 lb, and the strongest at 1,200 lb about 3,600 lb.
  2. Mount: most 6 x 2 in red polyurethane casters use a 4 x 4-1/2 in top plate; check the bolt spacing on your frame against the plate size.
  3. Floor: on 6 x 2 in red polyurethane casters, polyurethane protects finished floors and runs quietly; check the rating if the cart also crosses rough concrete.
  4. Rig: swivel and rigid 6 x 2 in red polyurethane casters are listed, with side lock brake and total lock brake options.

Related: red poly on iron casters.

6 x 2 in red polyurethane casters questions

How much weight can 6 x 2 in red polyurethane casters carry?

Single 6 x 2 in red polyurethane casters are rated 900 to 1,200 lb.

What top plate do 6 x 2 in red polyurethane casters use?

Most 6 x 2 in red polyurethane casters use 4 x 4-1/2 in.

What wheel material is most common on 6 x 2 in red polyurethane casters?

Polyurethane leads on 6 x 2 in red polyurethane casters, rated 900 to 1,200 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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