Up to 350 lbs
Up to 7,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
Shock absorbing
Outdoor / rough terrain
View All Specialty Casters
Browse all specialty caster types
All measurements indicate the wheel diameter by the tread width.
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.
Plate dimensions shown are overall mounting plate size.
When replacing existing casters, select the closest plate size and verify bolt-hole compatibility.
BHP = Bolt Hole Pattern, shown under each plate.

Discover the Hamilton Aerospace Spring Loaded Caster, your ultimate partner for superior durability and performance in heavy-duty environments. Boasting a remarkable 2500 lbs load capacity and a 12" x 3" metal wheel, experience optimal performance even in the most demanding situations.
Equipped with 3/4" sealed precision ball bearings, this caster ensures smooth and efficient operation. The spring-loaded Spinfinity swivel design offers enhanced maneuverability and precision, making it a top choice for aerospace and industrial applications.
The Hamilton Aerospace Spring Loaded Caster is a blend of quality, reliability, and performance. Ideal for aerospace, industrial, and other rigorous applications, ensuring superior load-bearing capacity and operational efficiency with every use.
Experience the pinnacle of engineering with Hamilton's Aerospace Spring Loaded Caster, boasting a robust 2500 lbs load capacity and a durable 12" x 3" metal wheel, designed to meet the rigorous demands of aerospace and heavy-duty applications.
Equipped with 3/4" sealed precision ball bearings, this caster ensures smooth operation. Its Spinfinity swivel, spring-loaded for enhanced maneuverability and precision, guarantees a responsive and controlled movement.
Corrosion-resistant materials promise longevity, backed by Hamilton’s renowned warranty. The caster’s easy installation and maintenance features, alongside its unique product code S-AEZFFM-12MB, ensure convenience and accessibility for all users.
Order processing
In stock. Orders placed before 12pm CT (Mon–Fri) typically ship the same or next business day from our Mansfield, TX warehouse.
Shipping method
Smaller orders ship parcel (UPS/FedEx Ground). Heavy or bulk quantities consolidate to LTL freight. The method and final cost are shown before payment, so there are no post-checkout adjustments.
Payment & procurement terms
New to CasterHQ? Open an account or request terms and send your resale or tax-exemption certificate before ordering so it is applied at checkout.
Volume pricing & quotes
Quantity discounts apply automatically — no codes needed. For large, recurring, or custom requirements, request a bulk quote and our team will confirm pricing, lead time, and total landed freight upfront.
Returns & warranty
Stock items carry a 30-day return policy in unused, resalable condition. Made-to-order and custom items are non-returnable once production starts. All products carry the manufacturer's warranty against defects.
Central & Southern U.S.: typically 1–2 business days
East & West Coasts: typically 2–3 business days
Remote areas and freight deliveries may take longer.
For pallet freight, scheduled releases, or blanket purchase orders, contact our team and we'll confirm total landed cost before you commit. Direct line: 844-439-4335.
The Hamilton Aerospace 12" caster is a testament to superior engineering, offering robust construction and advanced features. The aesthetic Platinum Powder finish and corrosion-resistant properties stand testament to its unmatched durability, while the Kingpinless Rig Type ensures stability and performance during rigorous use.
Experience customized mobility with the S-AEZFFM-12MB, designed for maneuverability in constrained spaces with a 15" overall height and 4.5625" swivel offset. The 4.5" x 6.5" mounting plate and 0.5" mounting bolt ensure secure and stable attachment, enhancing operational efficiency.
With a Cast Iron core wheel, endure demanding environments with confidence. The caster, weighing 58.5 lbs, ensures easy transportation and installation. The availability of replacement wheel W-1230-MB-3/4 guarantees maintained performance over time.
Opt for the Hamilton Aerospace 12" Swivel Caster S-AEZFFM-12MB and unlock a world of reliability and high-performance mobility, specifically engineered for the aerospace and industrial sectors. Elevate the efficiency and productivity of your operations with this unparalleled mobility solution.
This Hamilton S-AEZFFM-12MB 12" x 3" Metal Swivel Spring Loaded Caster – 2500 lb is rated to 2500 lbs per caster. Size a set by dividing the total load by the number of casters, and for uneven floors assume 3 of 4 casters carry the load. Keep continuous-use loads within about 75-80% of the rating.
This caster runs a Cast Iron wheel. Steel / iron wheels give maximum capacity and durability on smooth, hard industrial floors and tolerate heat.
This caster uses a top-plate mount. Measure your existing mounting holes before ordering; if you are replacing casters, match the bolt pattern - most standard patterns interchange across brands.
This is a Swivel caster. Swivel casters rotate 360 degrees for full maneuverability. For most mobile equipment we recommend 2 swivel + 2 rigid, or 4 swivel with at least 2 brakes.
Rated for -20°F to 180°F. Operating outside the rated range can reduce wheel life and load capacity, so match it to your environment (wash-down, freezer, oven-adjacent, etc.).
The Cast Iron wheel performs best on smooth, hard industrial floors. For non-marking or clean-environment needs, ask us about matching tread options.
We accept purchase orders and offer Net 30 on approved accounts, ACH, and all major cards, plus tax-exempt ordering with a resale or exemption certificate. Volume discounts apply automatically; request a bulk quote for large or recurring orders. Stock items carry a 30-day return policy in unused condition (made-to-order items are non-returnable once production starts).
$1,306.00
| Identification | |
| Brand | Hamilton |
| Dimensions & Mounting | |
| Mount Style | Plate |
| Rig Type | Swivel |
| Load & Performance | |
| Wheel Capacity | 2500 lbs |
| Temp Range | -20°F to 180°F |
| Brake Type | No Brake |
| Materials & Finish | |
| Wheel Material | Cast Iron |
| Frame Material | Zinc Plated Steel |
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