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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

Caster Wheel Materials & Selection Guide
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Caster Plate Mounting Hardware
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Polyolefin Casters, 4 x 4-1/2 Plate

Diameter: 4 to 8 inTread: 2 inPlate sizes: 4 x 4-1/2Brand: CasterHQ
The twelve polyolefin casters here come from CasterHQ with 4 to 8 in wheels. Plates include 4 x 4-1/2 in, all swivel, and 11 have a side lock brake. You will find a 4 x 2 in polyolefin 4-Piece caster set 4 x 4-1/2 in plate and an 8 x 2 in polyolefin swivel caster with brake here.
2600 lbs
TieredPricing
5" X 2" Tool Box Kit - Polyolefin Wheel - 2,600 Lbs Capacity per set of 4 CasterHQ
In Stock · Same/Next Day
5" x 2" Polyolefin Swivel & Rigid Tool Box Caster · 2,600 lb set of 4
Part # CB-9TBPO52
from $113.00
Volume pricing available
PolyolefinPlate
Load rating
2600 lbs
Size5" x 2"
Capacity2600 lbs
WheelPolyolefin
MountPlate 4" x 4-1/2"
TypeSwivel with Brake, Rigid · Side Lock Brake
More Details Less Details
Width 2"
Height 6-1/2"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Temp Range -50°F to 180°F
Rig Type Swivel with Brake, Rigid
Brake Side Lock Brake
Frame Zinc Plated Steel
5" X 2" Tool Box Kit - Polyolefin Wheel - 2,600 Lbs Capacity per...
Shop Product
2000 lbs
TieredPricing
4" X 2" Tool Box Kit - Polyolefin Wheel - 2,000 Lbs Capacity per set of 4 CasterHQ
In Stock · Same/Next Day
4" x 2" Polyolefin Swivel & Rigid Caster Kit · 2,000 lb set of 4
Part # CB-9TBPO42
from $92.00
Volume pricing available
PolyolefinPlate
Load rating
2000 lbs
Size4" x 2"
Capacity2000 lbs
WheelPolyolefin
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"
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 - Polyolefin Wheel - 2,000 Lbs Capacity per...
Shop Product
500 lbs
TieredPricing
4-Piece Swivel Caster Set with Brakes and Mounting Hardware - 4" x 2" Polyolefin Wheels, 2,000 lbs Total Capacity CasterHQ
In Stock · Same/Next Day
4" x 2" Polyolefin Swivel Caster Set with Brake · 2,000 lb set of 4
Part # TBRK-420PH-MH-2000
from $141.00
Volume pricing available
PolyolefinPlate
Load rating
500 lbs
Size4" x 2"
Capacity500 lbs
WheelPolyolefin
MountPlate
TypeSwivel with Brake · Side Lock Brake
More Details Less Details
Width 2"
Height 5-5/8"
Temp Range -50°F to 180°F
Rig Type Swivel with Brake
Brake Side Lock Brake
Frame Zinc Plated Steel
Complete 4" x 2" Swivel Caster Set with Brakes - 2000 lbs Capacity, Includes...
Shop Product
700 lbs
TieredPricing
4-Piece Caster Set | 4 Swivel with Brakes with Mounting Hardware - 6" x 2" Polyolefin Wheels, 2,800 lbs Total Capacity CasterHQ
In Stock · Same/Next Day
6" x 2" Polyolefin Swivel Caster with Brake – 2800 lb
Part # TBK-620PO-MH-2800
from $178.00
Volume pricing available
PolyolefinPlate
Load rating
700 lbs
Size6" x 2"
Capacity700 lbs
WheelPolyolefin
MountPlate
TypeSwivel with Brake · Side Lock Brake
More Details Less Details
Width 2"
Height 7-1/2"
Temp Range -50°F to 180°F
Rig Type Swivel with Brake
Brake Side Lock Brake
Frame Zinc Plated Steel
Heavy-Duty 6" x 2" Toolbox Caster Set | 4 Swivel with Brakes Casters -...
Shop Product
2800 lbs
TieredPricing
6" X 2" Tool Box Kit - Polyolefin Wheel - 2,800 Lbs Capacity per set of 4 CasterHQ
In Stock · Same/Next Day
6" x 2" Polyolefin Swivel & Rigid Tool Box Caster · 2,800 lb set of 4
Part # CB-9TBPO62
from $129.00
Volume pricing available
PolyolefinPlate
Load rating
2800 lbs
Size6" x 2"
Capacity2800 lbs
WheelPolyolefin
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"
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 - Polyolefin Wheel - 2,800 Lbs Capacity per...
Shop Product
800 lbs
TieredPricing
4-Piece Caster Set | 2 Swivel with Brakes 2 Fixed Casters with Mounting Hardware - 8" x 2" Polyolefin Wheels, 3,200 lbs Total Capacity CasterHQ
In Stock · Same/Next Day
8" x 2" Polyolefin Swivel & Rigid Caster Set with Brake · 3,200 lb set of 4
Part # TBRK-820PO-MH-3200
from $192.00
Volume pricing available
PolyolefinPlate
Load rating
800 lbs
Size8" x 2"
Capacity800 lbs
WheelPolyolefin
MountPlate
TypeSwivel with Brake, Rigid · Side Lock Brake
More Details Less Details
Width 2"
Height 9-1/2"
Temp Range -50°F to 180°F
Rig Type Rigid with Brake
Brake Side Lock Brake
Frame Zinc Plated Steel
Heavy-Duty 8" x 2" Toolbox Caster Set | 2 Swivel with Brakes & 2...
Shop Product
700 lbs
TieredPricing
4-Piece Caster Set | 2 Swivel with Brakes 2 Fixed and Mounting Hardware - 6" x 2" Polyolefin Wheels, 2,800 lbs Total Capacity CasterHQ
In Stock · Same/Next Day
6" x 2" Polyolefin Swivel & Rigid Caster Set · 2,800 lb set of 4
Part # TBRK-620PO-MH-2800
from $163.00
Volume pricing available
PolyolefinPlate
Load rating
700 lbs
Size6" x 2"
Capacity700 lbs
WheelPolyolefin
MountPlate
TypeSwivel with Brake, Rigid · Side Lock Brake
More Details Less Details
Width 2"
Height 7-1/2"
Temp Range -50°F to 180°F
Rig Type Rigid with Brake
Brake Side Lock Brake
Frame Zinc Plated Steel
Heavy-Duty 6" x 2" Toolbox Caster Set | 2 Swivel with Brakes & 2...
Shop Product
650 lbs
TieredPricing
4-Piece Caster Set | 2 Swivel with Brakes 2 Fixed and Mounting Hardware - 5" x 2" Polyolefin Wheels, 2,600 lbs Total Capacity CasterHQ
In Stock · Same/Next Day
5" x 2" Polyolefin Swivel & Rigid Caster Set · 2,600 lb set of 4
Part # TBRK-520PO-MH-2600
from $149.00
Volume pricing available
PolyolefinPlate
Load rating
650 lbs
Size5" x 2"
Capacity650 lbs
WheelPolyolefin
MountPlate
TypeSwivel with Brake, Rigid · Side Lock Brake
More Details Less Details
Width 2"
Height 6-1/2"
Temp Range -50°F to 180°F
Rig Type Rigid with Brake
Brake Side Lock Brake
Frame Zinc Plated Steel
Heavy-Duty 5" x 2" Toolbox Caster Set | 2 Swivel with Brakes & 2...
Shop Product
800 lbs
TieredPricing
4-Piece Caster Set | 4 Swivel with Brakes with Mounting Hardware - 8" x 2" Polyolefin Wheels, 3,200 lbs Total Capacity CasterHQ
In Stock · Same/Next Day
8" x 2" Polyolefin Swivel Caster with Brake – 3,200 lb
Part # TBK-820PO-MH-3200
from $213.00
Volume pricing available
PolyolefinPlate
Load rating
800 lbs
Size8" x 2"
Capacity800 lbs
WheelPolyolefin
MountPlate
TypeSwivel with Brake · Side Lock Brake
More Details Less Details
Width 2"
Height 9-1/2"
Temp Range -50°F to 180°F
Rig Type Swivel with Brake
Brake Side Lock Brake
Frame Zinc Plated Steel
Heavy-Duty 6" x 2" Toolbox Caster Set | 4 Swivel with Brakes Casters -...
Shop Product
650 lbs
TieredPricing
4-Piece Swivel Caster Set with Brakes and Mounting Hardware - 5" x 2" Polyolefin Wheels, 2,600 lbs Total Capacity CasterHQ
In Stock · Same/Next Day
5" x 2" Polyolefin Swivel Caster with Brake – 2,600 lb
Part # TBK-520PO-MH-2600
from $164.00
Volume pricing available
PolyolefinPlate
Load rating
650 lbs
Size5" x 2"
Capacity650 lbs
WheelPolyolefin
MountPlate
TypeSwivel with Brake · Side Lock Brake
More Details Less Details
Width 2"
Height 6-1/2"
Temp Range -50°F to 180°F
Rig Type Swivel with Brake
Brake Side Lock Brake
Frame Zinc Plated Steel
Heavy-Duty 5" x 2" Toolbox Caster Set with Brakes - 2600 lbs Total Capacity,...
Shop Product
500 lbs
TieredPricing
4-Piece Caster Set with Mounting Hardware - 4" x 2" Polyolefin Wheels, 2,000 lbs Total Capacity CasterHQ
In Stock · Same/Next Day
4" x 2" Polyolefin 4-Piece Caster Set 4" x 4-1/2" Plate · 2,000 lb set of 4
Part # TBK-420PH-MH-2000
from $128.00
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 -50°F to 180°F
Rig Type Swivel
Brake No Brake
Frame Zinc Plated Steel
Heavy-Duty Caster Set with Mounting Hardware: 4" x 2" Polyolefin Wheels, 2,000 lbs Total...
Shop Product
3200 lbs
TieredPricing
8" X 2" Tool Box Kit - Polyolefin Wheel - 3,200 Lbs Capacity per set of 4Lbs Capacity CasterHQ
In Stock · Same/Next Day
8" x 2" Polyolefin Swivel & Rigid Tool Box Caster Set · 3,200 lb set of 4
Part # CB-9TBPO82
from $141.00
Volume pricing available
PolyolefinPlate
Load rating
3200 lbs
Size8" x 2"
Capacity3200 lbs
WheelPolyolefin
MountPlate 4" x 4-1/2"
TypeSwivel with Brake, Rigid · Side Lock Brake
More Details Less Details
Width 2"
Height 9-1/2"
Bolt Pattern 2-5/8" x 3-5/8" slotted to 3" x 3"
Temp Range -50°F to 180°F
Rig Type Swivel with Brake, Rigid
Brake Side Lock Brake
Frame Zinc Plated Steel
8" X 2" Tool Box Kit - Polyolefin Wheel - 3,200 Lbs Capacity per...
Shop Product

Premium Polyolefin Toolbox Casters

Elevate your toolbox's durability and maneuverability with CasterHQ's robust Polyolefin Wheels. These injection-molded wheels aren't just lightweight—they're engineered to withstand hard impacts and sustain heavy loads.

Why Choose Our Polyolefin Wheels?

  • High Impact Resistance
  • Unparalleled resistance to grease, chemicals, and oils
  • Non-marking performance
  • Zero water absorption
CasterHQ's Polyolefin wheels offer industry-leading performance, setting the benchmark for durability, reliability, and ease of use.
Need Mounting Hardware? Click Here for premium quality 4" x 4-1/2" Mounting Plates.

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