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.

12" x 5.5" Polyurethane Casters

Custom made to order. All sales final.

Each Hamilton product is custom manufactured for your order (lead time is shown on each product page). Please confirm all specs before checkout, since made-to-order items aren't eligible for returns, exchanges or refunds. Need help? Call 844-439-4335 or email info@casterhq.com and we'll verify fit for you.

Diameter: 12 inTread: 5-1/2 inCapacity: 5,800 lb per casterPlate sizes: 8-1/2 x 8-1/2

You get two polyurethane casters here from Hamilton with 12 in wheels, rated 5,800 lb each. The top plate is 8-1/2 x 8-1/2 in on all of them, with swivel and rigid versions. Two examples are a Hamilton R-ZFMD-1255POYB-ULTRA 12 x 5.5 in poly rigid caster rated 5,800 lb and a Hamilton S-ZFMD-1255POYB-ULTRA 12 x 5.5 in poly swivel caster rated 5,800 lb.

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

12" x 5.5" Polyurethane Casters

12" TerraTech Ultra Wheels