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.

3-1/8" x 3" Forged Steel 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: 3-1/8 inTread: 3 inCapacity: 4,000 to 6,000 lb per casterBrand: Hamilton

The four steel casters here come from Hamilton with 3-1/8 in wheels, rated 4,000 to 6,000 lb each. Offered in both swivel and rigid, and none has a brake. You will find a Hamilton 3 1/8 x 3 in steel swivel caster rated 4,000 lb and a Hamilton S-SOMM2-313FS 3 1/8 x 3 in steel swivel dual wheel caster rated 6,000 lb here. Listed temperature ratings are mostly -40°F to 320°F.

Robust and Versatile Casters for Every Application

Introducing the Hamilton Son of Mini-Mite Casters with Forged Steel Wheels – a hallmark of strength and dependability. Engineered with high-strength forged steel wheels, these casters guarantee superior load capacity and durability. Ideal for a wide range of industrial applications, they promise a blend of longevity and unmatched performance.

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

3-1/8" x 3" Forged Steel Casters

Hamilton Son of Mini-Mite Casters with Forged Steel Wheels

Robust and Versatile Casters for Every Application

Experience the Hamilton Difference with the Mini-Mite Series

Seeking the Right Caster? Hamilton Experts Await Your Call!