6" x 2" Semi-Steel Casters | 4" x 4-1/2" Plate

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 caster	Listed temperature	Where it fits
Semi-steel		6 in	1,200 lb	-45°F to 600°F	rough floors, heat and heavy loads

Tread

Core

Wheel sizes

Rated per caster

Listed temperature

Where it fits

Semi-steel

6 in

1,200 lb

-45°F to 600°F

rough floors, heat and heavy loads

Choosing 6 x 2 in semi-steel casters

Load: plan on three casters carrying a four-caster cart [S2]; at 1,200 lb each, a common rating here, that is about 3,600 lb, and the 1,200 lb top rating covers about 3,600 lb.

Mount: most 6 x 2 in semi-steel casters use a 4 x 4-1/2 in top plate; match the bolt holes on your frame to the plate before ordering.

Floor: on 6 x 2 in semi-steel casters, semi-steel suits smooth concrete and heavy loads, but is loud and hard on tile and wood.

Rig: rigid and swivel 6 x 2 in semi-steel casters are listed.

Heat: among 6 x 2 in semi-steel casters, the highest listed range is -45°F to 600°F on semi-steel; check the temperature field on each listing before oven or hot-room use.

6 x 2 in semi-steel casters questions

How much weight can 6 x 2 in semi-steel casters carry?

Single 6 x 2 in semi-steel casters are rated 1,200 lb.

What top plate do 6 x 2 in semi-steel casters use?

Most 6 x 2 in semi-steel casters use 4 x 4-1/2 in.

What wheel material is most common on 6 x 2 in semi-steel casters?

Semi-steel leads on 6 x 2 in semi-steel casters, rated 1,200 lb per caster.

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

6" x 2" Semi-Steel Casters · 1,200 lb · 4" x 4-1/2" Plate

6 x 2 in semi-steel casters by tread

Choosing 6 x 2 in semi-steel casters

6 x 2 in semi-steel casters questions

Sources