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.

4" x 1-3/8" Polyurethane Casters

Plate sizes: 3-1/8 x 4-1/8Bolt holes: 1-3/4 x 2-15/16 slotted to 2-3/8 x 3-3/8; 1-3/4 x 3Diameter: 4, 5 inCapacity: up to 350 lb

Match a 3-1/8 x 4-1/8 top plate when bolting casters under warehouse carts on epoxy and smooth concrete. Expect wheel diameters 4, 5 in, polyurethane treads, and capacities 300 to 350 lb. Use kingpinless or heavy plate series when shock loads keep shearing kingpin races. Pair swivel and rigid casters for tracking, or use total locks where the cart must park on a grade.

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2 types

Wheel = wheel diameter · capacity is per caster.

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 1-3/8" Polyurethane Casters

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