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 Oven Rack Casters
Kitchen Prep Table Caster Sets
Wire Shelving Casters
Silent Glide Casters
Experience the best in wheel technology with our Hamilton Spinfinity Super Endurance Swivel Caster. Engineered for maximum endurance, it boasts a high load capacity of 5000 lbs., making it suitable for a variety of heavy-duty applications.
The Swivel Caster features a 12" x 5.5" Red Polyurethane Presson Wheel designed for long-lasting use. Its vibrant red color adds a visual appeal without compromising durability. The Polyurethane material (85A) ensures smooth movement and resistance to wear and tear.
Our Swivel Caster is fitted with 1 1/4" Sealed Precision Ball Bearings for seamless and effortless maneuverability. The sealed design keeps dirt and grime out, guaranteeing a longer lifespan and consistent performance.
The model number for this product is S-ZFSEC-1255POYB. It's part of our Spinfinity series - a testament to Hamilton's commitment to innovation and quality.
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
Because of its size and weight, this item typically ships LTL freight on a pallet. Smaller add-on items may ship parcel. Freight cost is calculated by destination and shown before payment, or quoted for large orders.
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.
Experience the unmatched quality and durability of the Hamilton Spinfinity Super Endurance Swivel Caster. With a high load capacity of 5000 lbs, this swivel caster is designed to handle heavy-duty applications effortlessly.
The Swivel Caster is part of Hamilton's Spinfinity series, a range designed for maximum endurance and long-lasting use. Its super endurance design makes it a reliable choice for commercial and industrial applications.
With a high load capacity of 5000 lbs, the Swivel Caster is ideal for transporting heavy items safely and smoothly. This high capacity makes it versatile and suitable for a wide range of applications.
The Swivel Caster features a 12" x 5.5" Red Polyurethane Presson Wheel. This wheel is not only durable but also resistant to wear and tear, ensuring smooth movement across various surfaces.
Equipped with 1 1/4" Sealed Precision Ball Bearings, the Swivel Caster provides seamless and effortless maneuverability. The sealed design keeps dirt and grime out, ensuring consistent performance and a longer lifespan.
The vibrant red color of the wheel adds aesthetic appeal without compromising durability. With Hamilton, you get a blend of functionality and style.
The model number for this product is S-ZFSEC-1255POYB. It's an integral part of our Spinfinity series, testifying to Hamilton's commitment to continuous innovation and quality.
This Hamilton S-ZFSEC-1255POYB 12" x 5.5" Polyurethane Swivel Caster – 5000 lb is rated to 5000 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 Polyurethane wheel with a 5-1/2" 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).
Application guidance for load margin, wheel materials, and swivel construction. Confirm ratings against your duty cycle, floor, and temperature before final spec.
Start with total system weight (payload + structure + fixtures), divide by casters that actually share the load, and keep continuous working load per caster at or below roughly 75% of catalog capacity (~25% margin). Heavy-duty kingpinless frames are often used on uneven floors, docks, and towed trains where dynamic load transfer is common — do not assume perfect four-caster share. If impact, drop-offs, or shock loading is expected, treat the margin as a floor, not a stretch goal, and confirm capacity at the wheel diameter and tread you select on this PDP. Dynamic and side loads are separate from static catalog ratings; call out towing or AGV duty when you quote so we can sanity-check the configuration.
Stay with polyurethane when floors are relatively smooth, temperatures stay inside the PU service window, and you want floor protection plus rollability. Move to phenolic, glass-filled nylon, or other high-temp / high-hardness options when heat, certain chemicals, or very high point loads push past what standard PU can sustain. Kingpinless construction solves swivel durability under thrust; it does not raise the wheel’s temperature or chemical limit. Use the wheel material and temperature fields on this product (and sibling SKUs) to match the environment — heat duty and side-thrust duty are independent selection axes.
Kingpin swivels concentrate clamping and much of the axial stack through one pin. Towing hitches, AGV corrections, and side scrub introduce lateral and moment loads that work that pin and the race faces harder than hand-pushed carts. Typical early wear modes include kingpin stretch or hole elongation, race brinelling, and increasing swivel play. Kingpinless designs replace that single-pin stack with a machined or forged raceway that carries thrust through the race path, which is why they are the usual spec for powered towing and higher side-load industrial carts. Pair kingpinless swivels with a wheel and bearing package rated for the same duty — the swivel upgrade alone does not fix an undersized tread or bearing.
$2,725.00
| Identification | |
| Brand | Hamilton |
| Dimensions & Mounting | |
| Wheel Diameter | 12" |
| Wheel Tread Width | 5-1/2" |
| Mount Style | Plate |
| Rig Type | Swivel |
| Load & Performance | |
| Wheel Capacity | 5000 lbs |
| Temp Range | -20°F to 180°F |
| Brake Type | No Brake |
| Materials & Finish | |
| Wheel Material | Polyurethane |
| Frame Material | Zinc Plated Steel |
