Shop by metric bore / shaft size

12 mm 14 mm 16 mm 18 mm 20 mm 22 mm 24 mm 26 mm 28 mm 30 mm

Polyurethane on Steel (Metric Bore)

Diameter: 4 to 10 inTread: 1-1/2, 2 and 3 inCapacity: 450 to 2,250 lb per wheel

This page lists polyurethane on steel wheels with metric bores. Polyurethane on steel cores is the most common tread here, rated 450 to 2,250 lb per wheel in 4, 5, 6, 8 and 10 in.

Shop by wheel type

10 types

Wheel = wheel diameter · capacity is per wheel.

Polyurethane on steel wheels with metric bores by tread

Tread	Core	Wheel sizes	Rated per wheel	Listed temperature	Where it fits
Polyurethane	Steel	4, 5, 6, 8 and 10 in	450 to 2,250 lb		quiet, floor-friendly and long wearing

Ratings are for single wheels of polyurethane on steel wheels with metric bores, from product fields [S1].

Wheel sizes

Wheel	Treads	Rated
4 x 1-1/2 in	polyurethane	450 to 600 lb
5 x 1-1/2 in	polyurethane	600 lb
5 x 2 in	polyurethane	800 to 900 lb
6 x 1-1/2 in	polyurethane	600 lb
6 x 3 in	polyurethane	1,500 lb
8 x 2 in	polyurethane	1,000 lb
8 x 3 in	polyurethane	1,850 lb
10 x 3 in	polyurethane	2,250 lb

Choosing polyurethane on steel wheels with metric bores

Load: plan on three wheels carrying a four-wheel cart [S2]; at 1,500 lb each, a common rating here, that is about 4,500 lb, and the 2,250 lb top rating covers about 6,750 lb.
Floor: on polyurethane on steel wheels with metric bores, polyurethane protects finished floors and runs quietly; check the rating if the cart also crosses rough concrete.

Related to polyurethane on steel wheels with metric bores: 12MM bore, 14MM bore and 16MM bore.

Polyurethane on steel wheels with metric bores questions

How much weight can polyurethane on steel wheels with metric bores carry?

Single polyurethane on steel wheels with metric bores are rated 450 to 2,250 lb; most fall between 600 and 1,500 lb.

What wheel material is most common on polyurethane on steel wheels with metric bores?

Polyurethane leads on polyurethane on steel wheels with metric bores, rated 450 to 2,250 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.

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: 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"

(3″ Wide Casters), Industry-Standard

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"

View All • 21 Plate Sizes

Plate Casters

Stem Casters

Stainless Casters

Ergonomic Casters

Leveling Casters