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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 Inch Polyolefin Wheel Plate Casters

Diameter: 4 inTread: 2 inPlate: 4 x 4-1/2 inCapacity: 500 lb per caster
This page lists 4 inch polyolefin wheel plate casters. Polyolefin is the most common tread on these 4 inch polyolefin wheel plate casters, rated 500 lb per caster. Sets of 4 4 inch polyolefin wheel plate casters list 2,000 lb combined.
500 lbs
TieredPricing
MEDIUM DUTY 4"X 2" POLYOLEFIN WHEEL - SWIVEL CASTER 500lbs Capacity CasterHQ
In Stock · Same/Next Day
4" x 2" Polyolefin Swivel Caster 4" x 4-1/2" Top Plate – 500 lb
Part # HQ2040S-PL1-HPR
from $23.00
Volume pricing available
PolyolefinPlate
Load rating
500 lbs
Size4" x 2"
Capacity500 lbs
WheelPolyolefin
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"
Temp Range 40°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
MEDIUM DUTY 4"X 2" POLYOLEFIN WHEEL - SWIVEL CASTER 500 LBS CAPACITY Polyolefin Caster...
Shop Product
2000 lbs
TieredPricing
MEDIUM DUTY 4"X 2" POLYOLEFIN WHEEL - SWIVEL CASTER SET OF 4 - 2,000 lbs Capacity Per Set CasterHQ
In Stock · Same/Next Day
4" x 2" Polyolefin Swivel Caster · 2,000 lb set of 4
Part # HQ2040S-PL1-HPR-4S
from $84.00
Volume pricing available
Polyolefin
Load rating
2000 lbs
Size4" x 2"
Capacity2000 lbs
WheelPolyolefin
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"
Temp Range 40°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Polyolefin Caster Wheels are injection molded from a blend of thermoplastic polymers forming a...
Shop Product
2000 lbs
TieredPricing
MEDIUM DUTY 4"X 2" POLYOLEFIN WHEEL - SWIVEL CASTER WITH BRAKES SET OF 4 - 2,000 lbs Capacity Per Set CasterHQ
In Stock · Same/Next Day
4" x 2" Polyolefin Swivel Caster with Brake · 2,000 lb set of 4
Part # HQ2040S-PL1-HPR-4SB
from $109.00
Volume pricing available
Polyolefin
Load rating
2000 lbs
Size4" x 2"
Capacity2000 lbs
WheelPolyolefin
Mount—
TypeSwivel with Brake · 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"
Temp Range 40°F to 180°F
Rig Type Swivel with Brake
Brake Side Lock Brake
Frame Zinc Plated Steel
Polyolefin Caster Wheels are injection molded from a blend of thermoplastic polymers forming a...
Shop Product
2000 lbs
TieredPricing
MEDIUM DUTY 4"X 2" POLYOLEFIN WHEEL - 2 SWIVEL CASTERS & 2 LOCKING CASTERS SET OF 4 - 2,000 lbs Capacity Per Set CasterHQ
In Stock · Same/Next Day
4" x 2" Polyolefin Swivel & Locking Caster Set · 2,000 lb set of 4
Part # HQ2040S-PL1-HPR-2SB2S
from $97.00
Volume pricing available
Polyolefin
Load rating
2000 lbs
Size4" x 2"
Capacity2000 lbs
WheelPolyolefin
Mount—
TypeSwivel, Swivel with Brake · 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"
Temp Range 40°F to 180°F
Rig Type Swivel, Swivel with Brake
Brake Side Lock Brake
Frame Zinc Plated Steel
Polyolefin Caster Wheels are injection molded from a blend of thermoplastic polymers forming a...
Shop Product
500 lbs
TieredPricing
MEDIUM DUTY 4"X 2" POLYOLEFIN WHEEL - RIGID CASTER 500lbs Capacity CasterHQ
In Stock · Same/Next Day
4" x 2" Polyolefin Rigid Caster 4" x 4-1/2" Top Plate – 500 lb
Part # HQ2040R-PL1-HPR
from $21.00
Volume pricing available
PolyolefinPlate
Load rating
500 lbs
Size4" x 2"
Capacity500 lbs
WheelPolyolefin
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"
Temp Range 40°F to 180°F
Rig Type Rigid
Brake No Brake
Frame Zinc Plated Steel
Polyolefin Caster Wheels are injection molded from a blend of thermoplastic polymers forming a...
Shop Product
2000 lbs
TieredPricing
MEDIUM DUTY 4"X 2" POLYOLEFIN WHEEL - 2 LOCKING CASTERS & 2 RIGID CASTERS SET OF 4 - 2,000 lbs Capacity Per Set CasterHQ
In Stock · Same/Next Day
4" x 2" Polyolefin Swivel & Rigid Caster Set · Model HQ2040S-PL1-HPR-2SB2R · 2,000 lb set of 4
Part # HQ2040S-PL1-HPR-2SB2R
from $94.00
Volume pricing available
Polyolefin
Load rating
2000 lbs
Size4" x 2"
Capacity2000 lbs
WheelPolyolefin
Mount—
Type—
More Details Less Details
Width 2"
Height 5-5/8"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Temp Range 40°F to 180°F
Frame Zinc Plated Steel
Polyolefin Caster Wheels are injection molded from a blend of thermoplastic polymers forming a...
Shop Product
2000 lbs
TieredPricing
MEDIUM DUTY 4"X 2" POLYOLEFIN WHEEL - 2 Swivel & 2 Rigid CASTER SET OF 4 2,000 lbs Capacity Per Set CasterHQ
In Stock · Same/Next Day
4" x 2" Polyolefin Swivel & Rigid Caster Set · Model HQ2040S-PL1-HPR-2S2R · 2,000 lb set of 4
Part # HQ2040S-PL1-HPR-2S2R
from $82.00
Volume pricing available
Polyolefin
Load rating
2000 lbs
Size4" x 2"
Capacity2000 lbs
WheelPolyolefin
Mount—
TypeSwivel, Rigid
More Details Less Details
Width 2"
Height 5-5/8"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Temp Range 40°F to 180°F
Rig Type Swivel, Rigid
Brake No Brake
Frame Zinc Plated Steel
Polyolefin Caster Wheels are injection molded from a blend of thermoplastic polymers forming a...
Shop Product

4 inch polyolefin wheel plate casters by tread

Tread Core Wheel sizes Rated per caster Listed temperature Where it fits
Polyolefin 4 in 500 lb 40°F to 180°F wet and chemical areas, light to medium loads

Ratings are for single casters of 4 inch polyolefin wheel plate casters, from product fields [S1].

Choosing 4 inch polyolefin wheel plate casters

  1. Load: divide the loaded weight by three for a four-caster cart [S2]; at 500 lb each, 4 inch polyolefin wheel plate casters suit a loaded cart of about 1,500 lb.
  2. Mount: most 4 inch polyolefin wheel plate 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 4 inch polyolefin wheel plate casters, polyolefin suits smooth concrete and heavy loads, but is loud and hard on tile and wood.
  4. Rig: swivel and rigid 4 inch polyolefin wheel plate casters are listed, with side lock brake options.

Related to 4 inch polyolefin wheel plate casters: industrial casters.

4 inch polyolefin wheel plate casters questions

How much weight can 4 inch polyolefin wheel plate casters carry?

Single 4 inch polyolefin wheel plate casters are rated 500 lb.

What top plate do 4 inch polyolefin wheel plate casters use?

Most 4 inch polyolefin wheel plate casters use 4 x 4-1/2 in.

What wheel material is most common on 4 inch polyolefin wheel plate casters?

Polyolefin leads on 4 inch polyolefin wheel plate casters, rated 500 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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