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.

1" x 4" Cast Iron Casters

Plate sizes: 4-1/2 x 6-1/4, 5-1/4 x 7-1/4Bolt holes: 2-7/16 x 4-15/16 slotted to 3-3/8 x 5-1/4; 3-3/8 x 5-1/4 slotted to 4-1/8 x 6-1/8Diameter: 3-1/4 inTread: 4, 4-1/2 inCapacity: up to 2,000 lb

4-1/2 x 6-1/4 inch top-plate casters for heavy warehouse carts, die carts, and plant fixtures. Expect wheel diameters 3-1/4 in, cast iron treads, and capacities 800 to 2,000 lb. Confirm stem length and thread pitch on stem mounts so the shoulder seats flush in the boss. Larger plates spread bolt stress on thick frames under continuous tow abuse. When floors see chemicals or washdowns, prefer sealed bearings and non-absorbent wheel compounds.

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

1" x 4" Cast Iron Casters