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Custom made to order. All sales final.
Each Hamilton product is custom manufactured for your order and ships in about 4-6 weeks. 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.
Introducing the R-ZFHS-6FSB Hamilton Spinfinity Rigid Caster, a premium mobility solution designed with the demands of industrial and commercial applications in mind. This durable, maintenance-free caster is part of the renowned ZFHS series and features a robust 6" x 2" Forged Steel Wheel, offering superior durability and load-bearing capacity.
The R-ZFHS-6FSB is designed with a unique Rigid structure, significantly enhancing its resistance to shock loads. This innovative design feature ensures the caster's longevity, even in the most demanding environments.
The caster also boasts 3/4" Sealed Precision Ball Bearings for smoother wheel rotation and reduced friction, offering superior mobility and ease of movement.
Invest in the R-ZFHS-6FSB Hamilton Spinfinity Rigid Caster today and experience the difference in quality and performance. This advanced caster is a testament to Hamilton's dedication to engineering excellence and is sure to be a valuable addition to any industrial or commercial setup.
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.
Experience a paradigm shift in mobility solutions with the R-ZFHS-6FSB Hamilton Spinfinity Rigid Caster. This superior caster belongs to Hamilton's renowned ZFHS Series and is an ideal choice for demanding industrial and commercial applications.
The R-ZFHS-6FSB features a robust 6" x 2" Forged Steel Wheel, known for its exceptional durability and load-bearing capacity. This design ensures the caster can comfortably handle the rigorous demands of any industrial setting without compromising on performance or longevity.
Maintenance-free operation is a core feature of the R-ZFHS-6FSB. The 3/4" Sealed Precision Ball Bearings reduce friction and ensure smoother wheel rotation, providing seamless movement and enhanced ease of use. This reliable caster offers superior mobility that stands the test of time without the need for regular maintenance.
With the R-ZFHS-6FSB Hamilton Spinfinity Rigid Caster, improving efficiency is easy. Its robust construction and design features combine to facilitate effortless transportation, boosting productivity levels and reducing labor costs. Invest in the R-ZFHS-6FSB and elevate your workspace mobility today.
This Hamilton R-ZFHS-6FSB 6" x 2" Forged Steel Rigid Caster – 3/4" Bearing 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 Polyurethane wheel with a 2" tread width. Polyurethane protects finished floors, rolls quietly, and resists most chemicals while carrying heavy loads.
This caster uses a top-plate mount with a 4-1/2" x 6-1/2" plate. 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.
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.
$203.00
| Identification | |
|---|---|
| Part Number / SKU | R-ZFHS-6FSB |
| Core | |
| Load Capacity | 2500 lbs |
| Wheel Diameter | 6" |
| Wheel Width | 2" |
| Rig Type | Rigid |
| Brake | No Brake |
| Mounting | |
| Mount Style | Plate |
| Plate Size | 4-1/2" x 6-1/2" |
| Wheel | |
| Wheel Material | Polyurethane |
| Compliance | |
| Buy American | Yes |
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 within the same duty class, all in stock.
| Casters (in stock) | Load capacity | Wheel | Type | Overall height | Price | |
|---|---|---|---|---|---|---|
| 1500 lbsLighter duty | 6" × 2"Ductile Iron | Swivel | 7-1/2" | $76.00 | View → | |
| 1500 lbsLighter duty | 6" × 2"Solid Polyurethane | Rigid | 7-1/2" | $199.00 | View → | |
| 2500 lbs | 6" × 2"Polyurethane | Rigid | — | $203.00 | Viewing | |
| 2880 lbsHeavier duty | 6" × 2"Polyurethane | Swivel, Rigid | 7-1/2" | $124.99 | View → | |
| 3600 lbsHeavier duty | 6" × 2"Phenolic | Swivel, Swivel with Brake + brake | 7-1/2" | $123.00 | View → |
