4" x 2" Rubber Casters | 400 lb | 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
Rubber	Cast iron	4 in	400 lb	-40°F to 180°F	cushioned and quiet on finished floors

Tread

Core

Wheel sizes

Rated per caster

Listed temperature

Where it fits

Rubber

Cast iron

4 in

400 lb

-40°F to 180°F

cushioned and quiet on finished floors

Choosing 4 x 2 in mold-on rubber casters

Load: plan on three casters carrying a four-caster cart [S2]; 4 x 2 in mold-on rubber casters rated 400 lb each then carry about 1,200 lb.

Mount: most 4 x 2 in mold-on rubber casters use a 4 x 4-1/2 in top plate; check the bolt spacing on your frame against the plate size.

Floor: on 4 x 2 in mold-on rubber casters, rubber protects finished floors and runs quietly; check the rating if the cart also crosses rough concrete.

Rig: swivel and rigid 4 x 2 in mold-on rubber casters are listed.

Related to 4 x 2 in mold-on rubber casters: caster wheels.

4 x 2 in mold-on rubber casters questions

How much weight can 4 x 2 in mold-on rubber casters carry?

Single 4 x 2 in mold-on rubber casters are rated 400 lb.

What top plate do 4 x 2 in mold-on rubber casters use?

Most 4 x 2 in mold-on rubber casters use 4 x 4-1/2 in.

What wheel material is most common on 4 x 2 in mold-on rubber casters?

Rubber leads on 4 x 2 in mold-on rubber casters, rated 400 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

4" x 2" Rubber Casters · 400 lb · 4" x 4-1/2" Plate

4 x 2 in mold-on rubber casters by tread

Choosing 4 x 2 in mold-on rubber casters

4 x 2 in mold-on rubber casters questions

Sources