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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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Stevens ESCORT SRT-8 steel appliance hand truck, red steel frame, black uprights, strap and footplate

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Durastar polyurethane on ductile steel wheels

This collection holds DSU with polyurethane and metal treads, made to replace worn wheels on carts, dollies, racks, and equipment. Wheels in this collection range from 2,900 to 3,500 lb per wheel. Wheels in this category range from 6 up to 12 inches in diameter with a 3 in tread width. Polyurethane (poly or urethane) treads are quiet, floor safe, and resist water and many chemicals. Metal wheels roll with low effort and handle debris and heat. They are loud and can mark finished floors. 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. Polyurethane aisle: polyurethane casters. Caster hub: heavy duty casters.

Shop by wheel type

4 types

Wheel = wheel diameter · capacity is per wheel.

3200 lbs
TieredPricing
Durastar 10" x 3" REGAL Polyurethane on Ductile Steel Core Wheel, 3200 lbs Capacity and 6205 Precision Ball Bearing Durastar
Ships in 1-3 Business Days
10" x 3" Polyurethane Industrial Replacement Wheel – 3200 lb
Part # 1030-DSU-65M
$119.00
Volume pricing available
Ductile Iron
Load rating
3200 lbs
Size10" x 3"
Capacity3200 lbs
MaterialDuctile Iron
CoreSteel
More Details Less Details
Width 3"
Core Steel
Temp Range -40°F to 180°F
Quick-fit wheel specs for replacement and procurement teams.
Shop Product
3000 lbs
TieredPricing
Durastar 8" x 3" REGAL Polyurethane on Ductile Steel Core Wheel, 3000 lbs Capacity and 6205 Precision Ball Bearing Durastar
Ships in 1-3 Business Days
8" x 3" Polyurethane Steel Core Industrial Replacement Wheel – 3000 lb
Part # 820-DSU-65M
$75.00
Volume pricing available
Ductile Iron
Load rating
3000 lbs
Size8" x 3"
Capacity3000 lbs
MaterialDuctile Iron
CoreSteel
More Details Less Details
Width 3"
Core Steel
Temp Range -40°F to 180°F
Quick-fit wheel specs for replacement and procurement teams.
Shop Product
2900 lbs
TieredPricing
Durastar 6" x 3" REGAL Polyurethane on Ductile Steel Core Wheel, 2900 lbs Capacity and 6205 Precision Ball Bearing Durastar
Ships in 1-3 Business Days
6" x 3" Polyurethane Industrial Replacement Wheel – 2900 lb
Part # 620-DSU-65M
$52.00
Volume pricing available
Ductile Iron
Load rating
2900 lbs
Size6" x 3"
Capacity2900 lbs
MaterialDuctile Iron
CoreSteel
More Details Less Details
Width 3"
Core Steel
Temp Range -40°F to 180°F
Quick-fit wheel specs for replacement and procurement teams.
Shop Product
3500 lbs
TieredPricing
Durastar 12" x 3" REGAL Polyurethane on Ductile Steel Core Wheel, 3500 lbs Capacity and 6205 Precision Ball Bearing Durastar
Ships in 1-3 Business Days
12" x 3" Polyurethane Wheel Industrial Replacement Wheel – 3500 lb
Part # 1230-DSU-65M
$142.00
Volume pricing available
Ductile Iron
Load rating
3500 lbs
Size12" x 3"
Capacity3500 lbs
MaterialDuctile Iron
CoreSteel
More Details Less Details
Width 3"
Core Steel
Temp Range -40°F to 180°F
Quick-fit wheel specs for replacement and procurement teams.
Shop Product

Durastar polyurethane on ductile steel wheels by tread

Tread Core Wheel sizes Rated per wheel Listed temperature Where it fits
Ductile iron Steel 6, 8, 10 and 12 in 2,900 to 3,500 lb -40°F to 180°F heavy loads with better impact strength than cast iron

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

Wheel sizes

Wheel Treads Rated
6 x 3 in ductile iron 2,900 lb
8 x 3 in ductile iron 3,000 lb
10 x 3 in ductile iron 3,200 lb
12 x 3 in ductile iron 3,500 lb

Choosing Durastar polyurethane on ductile steel wheels

  1. Load: plan on three wheels carrying a four-wheel cart [S2]; Durastar polyurethane on ductile steel wheels rated 3,500 lb each then carry about 10,500 lb.
  2. Floor: on Durastar polyurethane on ductile steel wheels, ductile iron suits smooth concrete and heavy loads, but is loud and hard on tile and wood.

Related to Durastar polyurethane on ductile steel wheels: caster wheels.

Durastar polyurethane on ductile steel wheels questions

How much weight can Durastar polyurethane on ductile steel wheels carry?

Single Durastar polyurethane on ductile steel wheels are rated 2,900 to 3,500 lb.

What wheel material is most common on Durastar polyurethane on ductile steel wheels?

Ductile iron leads on Durastar polyurethane on ductile steel wheels, rated 2,900 to 3,500 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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