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This 4-inch high-temperature oven rack caster is engineered for food service, commercial baking, and industrial heat environments where standard casters fail. Rated for continuous operation up to 475°F and 300 lbs per caster, it is ideal for oven racks, proofers, autoclaves, and wash-down applications.
The Heat-Tech® high-temperature wheel compound maintains structural integrity under extreme heat, steam, and chemical exposure while providing reliable rolling performance. A zinc-plated steel swivel frame delivers corrosion resistance and long service life in demanding environments.
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This caster is commonly used in environments where extreme temperatures, steam, oils, and cleaning chemicals are present. The hard, high-durometer tread resists deformation, abrasion, and chemical attack while rolling smoothly under load.
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The plate mount design allows secure installation on standard oven racks and equipment frames. Slotted hole pattern accommodates multiple mounting configurations.
Available for individual replacement or bulk purchasing for food service and industrial facilities. Contact us for volume pricing or project requirements.
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Yes. This caster is rated for continuous operation up to 475°F and is commonly used on oven racks and bakery equipment.
Yes. The wheel material offers excellent resistance to water, steam, oils, and common cleaning chemicals.
The high-temperature compound is designed to resist deformation and maintain shape under static and rolling loads at elevated temperatures.
This caster is widely used in food service environments. Always verify local regulatory requirements for your specific application.
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.
This 4" x 1.5" High-Temp Swivel Caster – 300 lb is rated to 300 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 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.
Rated for -20°F to 475°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 overall height (floor to top of plate or stem) is 5-1/8". Account for it when checking equipment clearance, dock height, and ergonomic working height.
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.
$41.00
| Identification | |
|---|---|
| Part Number / SKU | Z20P3431NGDF |
| Core | |
| Load Capacity | 300 lbs |
| Wheel Diameter | 4" |
| Wheel Width | 1-1/2" |
| Floor to top of mounting plate (or stem shoulder).Overall Height (OAH)Floor to top of mounting plate (or stem shoulder). | 5-1/8" |
| Mounting | |
| Mount Style | Plate |
| Construction | |
| Frame / Finish | Zinc Plated Steel |
| Temperature Range | -20°F to 475°F |
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 | |
|---|---|---|---|---|---|---|
| 250 lbsLighter duty | 4" × 1-1/2" | Swivel | 6" | $38.00 | View → | |
| 300 lbs | 4" × 1-1/2" | — | 5-1/8" | $41.00 | Viewing | |
| 300 lbsSame capacity | 4" × 1-1/2"Rubber | Swivel | 5.375" | $53.00 | View → | |
| 300 lbsSame capacity | 4" × 1-1/2" | Swivel | 5.125" | $24.00 | View → | |
| 300 lbsSame capacity | 4" × 1-1/2" | Swivel | 5-1/8" | $38.00 | View → |
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