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.

3-1/2" x 1-1/4" Polyurethane Casters

Diameter: 3-1/2 inTread: 1-1/4 inCapacity: up to 300 lbStem: threaded

Polyurethane casters here serve warehouse carts on epoxy and smooth concrete. You will see wheel diameters 3-1/2 in, polyurethane treads, and threaded-stem frames across the SKUs listed below. When floors see chemicals or washdowns, prefer sealed bearings and non-absorbent wheel compounds. Use kingpinless or heavy plate series when shock loads keep shearing kingpin races. These light-duty options cover everyday warehouse carts on epoxy and smooth concrete without jumping to extreme forged series.

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

3-1/2" x 1-1/4" Polyurethane Casters