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.

Product Overview:
Introducing the R-ZFFM-63DB Hamilton Spinfinity - the pinnacle of heavy-duty mobility. Designed for perfection, this maintenance-free ZFFM Series Rigid Caster is a must-have for those seeking top-notch performance and longevity in their caster wheels.
Perfect for heavy-duty applications, the R-ZFFM-63DB Hamilton Spinfinity Caster offers unparalleled strength and longevity. Its impressive design and top-quality materials make it an unbeatable choice for those seeking the best in mobility solutions.
When it comes to reliability and efficiency, the Hamilton Spinfinity series stands head and shoulders above the rest. Its unique design, coupled with the unrivaled quality of Duralast (95A) Wheel, ensures a caster wheel that you can trust to last for years to come.
Order yours today and experience the difference of the R-ZFFM-63DB Hamilton Spinfinity Maintenance-Free Rigid Caster with 6" x 3" Duralast (95A) Wheel!
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 R-ZFFM-63DB Hamilton Spinfinity Rigid Caster stems from a legacy of high-quality mobility solutions provided by Hamilton. This particular product has been designed keeping both industrial demands and user ease in mind, bridging the gap between robustness and usability.
With its Rigid design, users can expect a streamlined and efficient swivel action. The elimination of the traditional kingpin reduces wear and tear commonly experienced in conventional designs. The 6" x 3" dimensions provide an optimal balance between stability and movement, making it suitable for a variety of applications.
The inclusion of the Duralast (95A) Wheel ensures durability and longevity. This premium material is renowned for its resistance against wear, reducing the need for frequent replacements. The caster's 3/4" Sealed Precision Ball Bearings further enhance its performance by minimizing friction, allowing for smoother wheel rotations and transitions.
One of its standout features is its maintenance-free nature. This user-friendly design requires zero upkeep, giving users peace of mind and a hassle-free experience.
The R-ZFFM-63DB Hamilton Spinfinity Rigid Caster is ideal for heavy-duty applications. Whether it's factory machinery, industrial carts, or any environment requiring a durable mobility solution, this caster is up to the task. Its design emphasizes optimal mobility, reducing the manual effort required in operations. Plus, with its promise of high longevity, users can expect a reliable caster solution for years to come.
The superior rigid action ensures precise direction changes without any resistance, adding to its user-friendly appeal. The ease of installation and operation makes it a go-to choice for professionals and hobbyists alike.
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 Rigid caster. Rigid casters track straight for directional stability. 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).
$256.00
| Identification | |
| Brand | Hamilton |
| Dimensions & Mounting | |
| Wheel Diameter | 6" |
| Wheel Tread Width | 3" |
| Mount Style | Plate |
| Rig Type | Rigid |
| Load & Performance | |
| Temp Range | -20°F to 180°F |
| Brake Type | No Brake |
| Materials & Finish | |
| Wheel Material | Polyurethane |
| 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 | Rigid | — | $256.00 | 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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