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.
Specialty Casters
Gate Casters
BBQ Pit & Smoker Casters
Keyed Drive Wheels
Drywall Cart Casters
Skid Wheels & Casters for RVs
Leveling Casters
Shopping Cart Wheels & Casters
Band Equipment Casters & Wheels
Low Profile Casters
Cart Wheels & Casters
Toolbox Caster Sets
Bakery & High Temperature Casters
Kitchen Prep Table Caster Sets
Wire Shelving Casters
Silent Glide Casters

Experience a new benchmark in caster technology with the Hamilton Spinfinity S-ZFFM-63SWC85. Designed for exceptional durability and ease, it promises a remarkable blend of innovation and performance.
Break away from the limitations of traditional kingpin designs. Our kingpinless configuration is a testament to lasting strength, ensuring your caster withstands rigorous tasks without the wear and tear commonly experienced in standard models. Plus, the maintenance-free promise assures you get long-term performance with minimal effort.
Featuring a 6x3" UltraGlide (85A) Triple Wheel with an attractive blue tread mounted on a sturdy aluminum core, this swivel caster guarantees unparalleled maneuverability. Whether you're moving heavy machinery or navigating through industrial terrains, the UltraGlide promises a smooth experience.
Integrated with 3/4" sealed precision ball bearings, the Hamilton Spinfinity S-ZFFM-63SWC85 ensures a friction-free, smooth ride. These bearings are meticulously sealed to prevent dust and debris ingress, ensuring a consistent performance for years.
Trust the Hamilton Spinfinity S-ZFFM-63SWC85 Swivel Caster for a mobility solution that's both efficient and durable.
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 Spinfinity S-ZFFM-63SWC85 Swivel Caster boasts a unique kingpinless design, ensuring an extended lifespan by eliminating the typical wear and tear experienced in conventional models.
With an emphasis on hassle-free utility, this swivel caster requires minimal upkeep. Its maintenance-free feature promises enduring performance, letting you focus more on tasks at hand.
Embedded with a 6x3" UltraGlide (85A) Triple Wheel, it guarantees top-tier maneuverability. Its unmatched flexibility stems from the unique combination of an UltraGlide wheel fortified with a blue tread and an Aluminum core. This union not only offers effortless movement but also adds a touch of elegance to the caster's rugged design.
The inclusion of 3/4" sealed precision ball bearings ensures a friction-free, seamless ride. These bearings, apart from offering smooth transitions, also act as a protective shield against dust and external elements, ensuring consistent and undisturbed performance.
The Hamilton Spinfinity caster is not just about strength and durability. With reduced friction from its precision bearings, it ensures optimal energy utilization, translating into cost savings in the long run. Additionally, its user-friendly design ensures effortless operations, catering to both professionals and novices alike.
Every aspect of the Hamilton Spinfinity caster speaks volumes about its robustness. Crafted meticulously to endure even the most demanding of settings, it promises longevity and unparalleled performance.
This caster runs a Polyurethane wheel with a 3" tread width. Polyurethane protects finished floors, rolls quietly, and resists most chemicals while carrying heavy loads.
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 Polyurethane wheel performs best on smooth to semi-smooth floors including sealed concrete, tile, and epoxy. 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).
$638.00
| Identification | |
| Brand | Hamilton |
| Dimensions & Mounting | |
| Wheel Diameter | 6" |
| Wheel Tread Width | 3" |
| Mount Style | Plate |
| Rig Type | Swivel |
| Load & Performance | |
| Temp Range | -20°F to 180°F |
| Brake Type | No Brake |
| Materials & Finish | |
| Wheel Material | Polyurethane |
| Wheel Core Material | Aluminum |
| Frame Material | Zinc Plated Steel |
Hamilton 6" x 2-1/2" DuraGlide Polyurethane Rigid Caster – 3000 lb | CasterHQ
6" x 3"
$299
Hamilton 6" x 3" Forged Steel Rigid Caster – 4000 lb | CasterHQ
6" x 3"
$372
Hamilton 6" x 2-1/2" DuraGlide Swivel Caster – 3000 lb | CasterHQ
6" x 3"
$438
View all 6′ x 3′ casters & wheels →
Your selection is highlighted. Every option shares its wheel size and mount; a Direct fit tag means the same mounting plate — a drop-in replacement. Step up or down in load rating, all in-stock.
| Casters (in stock) | Load capacity | Wheel | Type | Overall height | Price | |
|---|---|---|---|---|---|---|
| — | 6" × 3"Polyurethane | Swivel | — | $638.00 | Viewing | |
| 2000 lbsHeavier duty | 6" × 3"Polyurethane | Swivel | 8" | $131.00 | View → | |
| 2000 lbsHeavier duty | 6" × 3"Polyurethane | Rigid | 7-1/2" | $100.00 | View → | |
| 2000 lbsHeavier duty | 6" × 3"Polyurethane | Rigid | 7-1/2" | $185.00 | View → | |
| 2000 lbsHeavier duty | 6" × 3"Polyurethane | Swivel | 7-1/2" | $173.00 | View → |





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