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" x 1-1/4" Rubber Casters · 175 lb · 3-1/8" x 4-1/8" Plate

Plate sizes: 3-1/8 x 4-1/8Bolt holes: 1-3/4 x 2-15/16 slotted to 2-3/8 x 3-3/8Diameter: 3 inTread: 1-1/4 inCapacity: up to 175 lb

Match a 3-1/8 x 4-1/8 top plate when bolting casters under finished floors and quiet institutional carts. Typical builds show wheel diameters 3 in, rubber treads, and capacities 175 lb. Replace worn corners in matched sets when possible so the cart tracks straight under load. Use kingpinless or heavy plate series when shock loads keep shearing kingpin races. These light-duty options cover everyday finished floors and quiet institutional carts 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" x 1-1/4" Rubber Casters · 175 lb · 3-1/8" x 4-1/8" Plate