28MM Bore

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.

Tread	Core	Wheel sizes	Rated per wheel	Listed temperature	Where it fits
Polyurethane	Steel	6, 8 and 10 in	1,500 to 2,250 lb		quiet, floor-friendly and long wearing

Tread

Core

Wheel sizes

Rated per wheel

Listed temperature

Where it fits

Polyurethane

Steel

6, 8 and 10 in

1,500 to 2,250 lb

quiet, floor-friendly and long wearing

Wheel	Treads	Rated
6 x 3 in	polyurethane	1,500 lb
8 x 3 in	polyurethane	1,850 lb
10 x 3 in	polyurethane	2,250 lb

Wheel

Treads

Rated

6 x 3 in

polyurethane

1,500 lb

8 x 3 in

polyurethane

1,850 lb

10 x 3 in

polyurethane

2,250 lb

Choosing 28 mm bore keyed wheels

Load: divide the loaded weight by three for a four-wheel cart [S2]; at 2,250 lb each, 28 mm bore keyed wheels suit a loaded cart of about 6,750 lb.

Floor: on 28 mm bore keyed wheels, polyurethane protects finished floors and runs quietly; check the rating if the cart also crosses rough concrete.

28 mm bore keyed wheels questions

How much weight can 28 mm bore keyed wheels carry?

Single 28 mm bore keyed wheels are rated 1,500 to 2,250 lb.

What wheel material is most common on 28 mm bore keyed wheels?

Polyurethane leads on 28 mm bore keyed wheels, rated 1,500 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

28MM Bore

28 mm bore keyed wheels by tread

Wheel sizes

Choosing 28 mm bore keyed wheels

28 mm bore keyed wheels questions

Sources