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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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Durastar solid polyurethane wheels

This collection holds SPU with polyurethane treads, made to replace worn wheels on carts, dollies, racks, and equipment. Wheels in this collection range from 300 to 1,400 lb per wheel. Wheels in this category range from 3 up to 8 inches in diameter with 1-1/4 to 2 in tread widths. Polyurethane (poly or urethane) treads are quiet, floor safe, and resist water and many chemicals. Match the bore, hub length, diameter, and tread width before you order. Order the axle and spacers if the old ones are worn. Read the listing for the exact wheel size, overall height, and mount shown. Confirm the load rating printed on the title before you order. Measure the old wheel or caster before you buy. Check the floor type and the heaviest load the cart will carry before you choose. Call or email CasterHQ with the part number from the old unit if you need help matching it. Polyurethane aisle: polyurethane casters. Caster hub: heavy duty casters.

Shop by wheel type

5 types

Wheel = wheel diameter · capacity is per wheel.

1400 lbs
TieredPricing
Durastar 8" x 2" Solid Polyurethane Wheel, 1400 lbs Capacity and 1-3/16" Plain Bore Durastar
Ships in 1-3 Business Days
8" x 2" Polyurethane Solid Wheel 1-3/16" Bore – 1400 lb
Part # 820-SPU-84
from $71.00
Volume pricing available
Solid Polyurethane
Load rating
1400 lbs
Size8" x 2"
Capacity1400 lbs
MaterialSolid Polyurethane
Core—
More Details Less Details
Width 2"
Temp Range -45°F to 180°F
Quick-fit wheel specs for replacement and procurement teams.
Shop Product
1200 lbs
TieredPricing
Durastar 6" x 2" Solid Polyurethane Wheel, 1200 lbs Capacity and 1-3/16" Plain Bore Durastar
Ships in 1-3 Business Days
6" x 2" Polyurethane Solid Industrial Replacement Wheel – 1200 lb
Part # 620-SPU-84
from $47.00
Volume pricing available
Solid Polyurethane
Load rating
1200 lbs
Size6" x 2"
Capacity1200 lbs
MaterialSolid Polyurethane
Core—
More Details Less Details
Width 2"
Temp Range -45°F to 180°F
Quick-fit wheel specs for replacement and procurement teams.
Shop Product
1000 lbs
TieredPricing
Durastar 5" x 2" Solid Polyurethane Wheel, 1000 lbs Capacity and 1-3/16" Plain Bore Durastar
Ships in 1-3 Business Days
5" x 2" Polyurethane Solid Industrial Replacement Wheel – 1000 lb
Part # 520-SPU-84
from $46.00
Volume pricing available
Solid Polyurethane
Load rating
1000 lbs
Size5" x 2"
Capacity1000 lbs
MaterialSolid Polyurethane
Core—
More Details Less Details
Width 2"
Temp Range -45°F to 180°F
Quick-fit wheel specs for replacement and procurement teams.
Shop Product
700 lbs
TieredPricing
Durastar 5" x 1-1/4" Solid Polyurethane Wheel, 700 lbs Capacity and 1/2" Plain Bore Durastar
Ships in 1-3 Business Days
5" x 1-1/4" Polyurethane Solid Industrial Replacement Wheel – 700 lb
Part # 514-SPU-83
from $32.00
Volume pricing available
Solid Polyurethane
Load rating
700 lbs
Size5" x 1-1/4"
Capacity700 lbs
MaterialSolid Polyurethane
Core—
More Details Less Details
Width 1-1/4"
Temp Range -45°F to 180°F
Quick-fit wheel specs for replacement and procurement teams.
Shop Product
800 lbs
TieredPricing
Durastar 4" x 2" Solid Polyurethane Wheel, 800 lbs Capacity and 1-3/16" Plain Bore Durastar
Ships in 1-3 Business Days
4" x 2" Polyurethane Solid Industrial Replacement Wheel – 800 lb
Part # 420-SPU-84
from $35.00
Volume pricing available
Solid Polyurethane
Load rating
800 lbs
Size4" x 2"
Capacity800 lbs
MaterialSolid Polyurethane
Core—
More Details Less Details
Width 2"
Temp Range -45°F to 180°F
Quick-fit wheel specs for replacement and procurement teams.
Shop Product
400 lbs
TieredPricing
Durastar 4" x 1-1/4" Solid Polyurethane Wheel, 400 lbs Capacity and 1/2" Plain Bore Durastar
Ships in 1-3 Business Days
4" x 1-1/4" Polyurethane Solid Wheel – 400 lb
Part # 414-SPU-83
from $24.00
Volume pricing available
Solid Polyurethane
Load rating
400 lbs
Size4" x 1-1/4"
Capacity400 lbs
MaterialSolid Polyurethane
Core—
More Details Less Details
Width 1-1/4"
Temp Range -45°F to 180°F
Quick-fit wheel specs for replacement and procurement teams.
Shop Product
300 lbs
TieredPricing
Durastar 3" x 1-1/4" Solid Polyurethane Wheel, 300 lbs Capacity and 1/2" Plain Bore Durastar
Ships in 1-3 Business Days
3" x 1-1/4" Polyurethane Solid Industrial Replacement Wheel – 300 lb
Part # 314-SPU-83
from $23.00
Volume pricing available
Solid Polyurethane
Load rating
300 lbs
Size3" x 1-1/4"
Capacity300 lbs
MaterialSolid Polyurethane
Core—
More Details Less Details
Width 1-1/4"
Temp Range -45°F to 180°F
Quick-fit wheel specs for replacement and procurement teams.
Shop Product

Durastar solid polyurethane wheels by tread

Tread Core Wheel sizes Rated per wheel Listed temperature Where it fits
Polyurethane 3, 4, 5, 6 and 8 in 300 to 1,400 lb -45°F to 180°F quiet, floor-friendly and long wearing

Ratings are for single wheels of Durastar solid polyurethane wheels, from product fields [S1].

Wheel sizes

Wheel Treads Rated
3 x 1-1/4 in polyurethane 300 lb
4 x 1-1/4 in polyurethane 400 lb
4 x 2 in polyurethane 800 lb
5 x 1-1/4 in polyurethane 700 lb
5 x 2 in polyurethane 1,000 lb
6 x 2 in polyurethane 1,200 lb
8 x 2 in polyurethane 1,400 lb

Choosing Durastar solid polyurethane wheels

  1. Load: plan on three wheels carrying a four-wheel cart [S2]; at 1,200 lb each, a common rating here, that is about 3,600 lb, and the 1,400 lb top rating covers about 4,200 lb.
  2. Floor: on Durastar solid polyurethane wheels, polyurethane protects finished floors and runs quietly; check the rating if the cart also crosses rough concrete.

Related to Durastar solid polyurethane wheels: caster wheels, 3 x 1-1/4 in polyurethane wheels and 5 x 2 in polyurethane wheels.

Durastar solid polyurethane wheels questions

How much weight can Durastar solid polyurethane wheels carry?

Single Durastar solid polyurethane wheels are rated 300 to 1,400 lb.

What wheel material is most common on Durastar solid polyurethane wheels?

Polyurethane leads on Durastar solid polyurethane wheels, rated 300 to 1,400 lb per wheel.

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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