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Achieve peak performance even under extreme heat with capacities of:
- 2560 lbs. at 550° F
- 1280 lbs. at 750° F
The R-FMK-63HFSB bearing is meticulously designed for applications that require resistance to high temperatures without any sacrifice on load capacity. As a testament to its premium quality, this bearing promises enduring performance and utmost reliability even in the most demanding conditions. It's the preferred solution for e-commerce industrial buyers seeking both durability and efficiency.
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.
Perfect for high-temperature industrial needs like manufacturing and processing plants. The steel core and metal tread guarantee longevity and top-notch performance.
Prioritizing both performance and safety, our caster offers enhanced mobility with its Weldment design. The varied load capacities suit multiple temperature demands, showcasing its adaptability and efficiency. Every feature is crafted to elevate the user experience, making it a prime selection for both e-commerce shoppers and industrial professionals.
Seek robust, high-temperature solutions? Our Rigid Caster with High-Heat Capacity stands unmatched.
This Hamilton R-FMK-63HFSB 6" High-Temperature Wheel – 2560 lb is rated to 2560 lbs per wheel. Divide the total load across the number of wheels in your rig and keep working loads within about 75-80% of the rating for continuous use.
This is a Steel wheel. Steel / iron wheels give maximum capacity and durability on smooth, hard industrial floors and tolerate heat.
6" diameter x 3" tread width. Verify your axle diameter and hub/bore length against your existing wheel before ordering.
Yes. Most wheels can be paired with a swivel or rigid rig to build a complete caster. Tell us your mount and load and we will spec the rig - request it on our bulk pricing page.
Rated for -20°F to 180°F. Operating outside the rated range can shorten wheel life and reduce capacity.
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.
Treat published load capacity as a continuous working limit, not a one-time peak. Divide total loaded cart weight (product + rack + fixtures) by the number of casters that share the load, then size so that working load per caster stays at or below about 75% of the rated capacity (a common ~25% margin). On four-wheel oven racks, uneven floors and thermal growth can shift load to two or three casters; if your process routinely parks on imperfect floors, engineer for three-caster support rather than perfect four-way share. Confirm ratings at your process temperature — heat softens many wheel compounds and can lower usable capacity versus room-temperature catalog numbers.
Bypass standard polyurethane when continuous or cyclic wheel temperatures exceed the urethane compound’s published service range (often well below typical bake / washdown-after-heat zones). Spec glass-filled nylon or phenolic (or other high-temp tread systems on the PDP) when racks enter ovens, proofers, or wash tunnels where tread softening, bond failure, or flat spots would appear with PU. Match the wheel to the hottest surface the tread sees, including residual heat after exit, and verify chemical exposure (cleaners, fats, steam) against the material notes on this product. When in doubt, ask for the temperature and duty cycle — we will confirm whether this SKU or a high-temp alternate is the right call.
A traditional kingpin clamps the swivel assembly through a single axial fastener. Repeated side thrust from towing, tugger lines, or AGV path corrections loads that pin and the raceway faces in ways ordinary cart steering does not. Over time that shows up as elongated kingpin holes, brinelled races, or loose swivels. Kingpinless (or forged integrated) raceways distribute thrust through a continuous race path instead of relying on that central pin — better suited when side loads are planned into the duty cycle. Oven-rack and high-temp lines still need the correct wheel material first; upgrade the swivel construction when towing or powered side loads are part of the application, not only when heat is.
$719.00
| Identification | |
|---|---|
| Part Number / SKU | R-FMK-63HFSB |
| Core | |
| Load Capacity | 2560 lbs |
| Wheel Diameter | 6" |
| Wheel Width | 3" |
| Floor to top of mounting plate (or stem shoulder).Overall Height (OAH)Floor to top of mounting plate (or stem shoulder). | 7-1/2" |
| Wheel | |
| Wheel Material | Steel |
| Wheel Core Material | Steel |
| Wheel Color | High Heat Clear |
| Bearing Type | HH SS Precision Shielded Ball Bearing |
| Construction | |
| Frame / Finish | Zinc Plated Steel |
| Temperature Range | -20°F to 180°F |
| Unit Weight | 27 lbs |
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 | |
|---|---|---|---|---|---|---|
| 2500 lbsLighter duty | 6" × 3"Ductile Iron | Swivel | 7-1/2" | $95.00 | View → | |
| 2500 lbsLighter duty | 6" × 3"Polyurethane | Swivel | 7-1/2" | $95.00 | View → | |
| 2560 lbs | 6" × 3"Steel | — | 7-1/2" | $719.00 | Viewing | |
| 3000 lbsHeavier duty | 6" × 3"Polyurethane | — | — | $58.00 | View → | |
| 3000 lbsHeavier duty | 6" × 3"Polyurethane | Swivel | 8" | $375.00 | View → |
