4" x 1.25" Phenolic Casters

Diameter: 4 inTread: 1-1/4 inPlate: 2-3/8 x 3-5/8 inCapacity: 350 lb per caster

This page lists 4 x 1.25 in phenolic casters. Phenolic is the most common tread on these 4 x 1.25 in phenolic casters, rated 350 lb per caster. Sets of 4 4 x 1.25 in phenolic casters list 1,400 lb combined.

4 x 1.25 in phenolic casters by tread

Tread	Core	Wheel sizes	Rated per caster	Listed temperature	Where it fits
Phenolic		4 in	350 lb	-50°F to 250°F	hard and easy rolling on smooth, dry floors

Ratings are for single casters of 4 x 1.25 in phenolic casters, from product fields [S1].

Choosing 4 x 1.25 in phenolic casters

Load: plan on three casters carrying a four-caster cart [S2]; 4 x 1.25 in phenolic casters rated 350 lb each then carry about 1,050 lb.
Mount: most 4 x 1.25 in phenolic casters use a 2-3/8 x 3-5/8 in top plate; match the bolt holes on your frame to the plate before ordering.
Floor: on 4 x 1.25 in phenolic casters, phenolic suits smooth concrete and heavy loads, but is loud and hard on tile and wood.
Rig: swivel and rigid 4 x 1.25 in phenolic casters are listed, with side lock brake and top lock brake options.

Related to 4 x 1.25 in phenolic casters: phenolic wheels.

4 x 1.25 in phenolic casters questions

How much weight can 4 x 1.25 in phenolic casters carry?

Single 4 x 1.25 in phenolic casters are rated 350 lb.

What top plate do 4 x 1.25 in phenolic casters use?

Most 4 x 1.25 in phenolic casters use 2-3/8 x 3-5/8 in.

What wheel material is most common on 4 x 1.25 in phenolic casters?

Phenolic leads on 4 x 1.25 in phenolic casters, rated 350 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 1.25" Phenolic Casters

4 x 1.25 in phenolic casters by tread

Choosing 4 x 1.25 in phenolic casters

4 x 1.25 in phenolic casters questions

Sources