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
The Z20P2431NGD is the industry-standard, OEM-style high-temperature oven rack caster commonly supplied on commercial bakery racks and oven racks from original equipment manufacturers. This model is designed as a direct replacement where dimensional accuracy, heat resistance, and food safety are required.
It features the most common oven rack mounting plate size: 3-1/8" × 4-1/8", allowing direct replacement without drilling or modification. This is the plate size used on the majority of commercial bakery and oven racks in the field.
The wheel is manufactured from a food-safe, high-temperature epoxy resin compound suitable for use around consumable goods. It is designed to withstand elevated temperatures, steam, oils, and repeated wash-down cycles without degrading or contaminating food-contact environments.
---
---
This caster matches the original configuration used by many commercial rack manufacturers. It is commonly installed on:
Important: This caster uses the 3-1/8" × 4-1/8" mounting plate. If your rack uses the larger 4" × 4-1/2" plate, this model will not fit.
👉 View the 4" × 4-1/2" plate version here
---
Most bakery and oven racks use the 3-1/8" × 4-1/8" plate, but some manufacturers use a larger 4" × 4-1/2" pattern. Always measure your existing caster plate before ordering to ensure proper fit.
The wheel compound is designed for use around consumable goods. Its non-porous, high-temperature material resists absorption of oils, moisture, and food byproducts, making it suitable for regulated food environments.
This caster design is covered under U.S. Patent 3,052,650, reflecting the original engineered configuration used in commercial oven rack applications.
---
Yes. This caster matches the OEM-correct specifications and dimensions associated with the Z20P2431NGD part commonly used on bakery and oven racks.
Yes. The wheel material is food-safe and designed for use around consumable goods in high-temperature environments.
This caster is rated for continuous operation up to 475°F, and up to 550°F intermittently for up to 30 minutes.
If your rack uses a 4" × 4-1/2" plate, you will need the larger-plate version. A link to that model is provided above.
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 Z20P2431NGD Caster is engineered for superior performance in demanding environments, featuring a robust 4-inch green epoxy resin wheel that withstands 475°F continuous and 550°F intermittent (up to 30 minutes). This caster is specifically designed to provide reliable, smooth mobility under high-temperature conditions, making it an ideal choice for a variety of industrial applications including ovens and bakeries.
Its zinc-plated steel yoke with a protective lacquer dip finish ensures enhanced durability and corrosion resistance, safeguarding the caster against environmental factors in harsh settings. The 5/16″ Quad X Precision Bearings deliver exceptional maneuverability and load-bearing capabilities, supporting up to medium-duty applications efficiently.
This caster is particularly suitable for bakery equipment, oven racks, and other machinery used in high-heat environments. Its high temperature tolerance and durability also make it an excellent choice for manufacturing facilities requiring reliable transport solutions.
Upgrade to the Z20P2431NGD Caster for unmatched durability and performance. Shop now and ensure your equipment is equipped to handle any challenge with ease.
This Z20P2431NGD 4" x 1.5" Epoxy Resin Oven Rack Caster – 3-1/8" x 4-1/8" 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 runs a Epoxy Resin wheel with a 1-1/2" tread width. This wheel material balances load capacity, rolling ease, and floor protection for the intended application.
This caster uses a top-plate mount with a 3-1/8" x 4-1/8" plate and a 1-3/4" x 2-15/16" slotted to 2-3/8" x 3-3/8" bolt pattern. 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 475°F continuous; 550°F intermittent (up to 30 min). 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 Epoxy Resin wheel performs best on smooth concrete and finished warehouse floors. For non-marking or clean-environment needs, ask us about matching tread options.
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.
$30.00
| Identification | |
|---|---|
| Part Number / SKU | Z20P2431NGD |
| 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" |
| Rig Type | Swivel |
| Distance from swivel centerline to the outer edge of the wheel when turned.Swivel RadiusDistance from swivel centerline to the outer edge of the wheel when turned. | 3-1/2" |
| Mounting | |
| Mount Style | Plate |
| Plate Size | 3-1/8" x 4-1/8" |
| Center-to-center spacing of the top-plate mounting holes.Bolt Hole Pattern (BHP)Center-to-center spacing of the top-plate mounting holes. | 1-3/4" x 2-15/16" slotted to 2-3/8" x 3-3/8" |
| Wheel | |
| Wheel Material | Epoxy Resin |
| Wheel tread hardness. Shore D is hard; Shore A is softer.Durometer (Shore)Wheel tread hardness. Shore D is hard; Shore A is softer. | Shore D 46 (±5) |
| Hub Width | 1.6" |
| Bearing Material | Steel |
| Bearing Size | 5/16" |
| Axle Diameter | 5/16" |
| Construction | |
| Frame / Finish | Zinc Plated Steel |
| Temperature Range | 475°F continuous; 550°F intermittent (up to 30 min) |
| Warranty | 1 Year |
Drag to rotate. Select a label (OAH, Plate, BHP, Dia, Width) for its dimensioned drawing view; Esc or Back to 3D returns. Double-click or Reset view to recenter. Values from manufacturer specs; series geometry for the 1-1/2" tread plate caster family.
Series geometry, reference only. Verify critical dims against the spec table.
Free for design use. Redistribution or resale prohibited.
Manufacturer CAD drawing · Z20P2431NGD
2D drawing supplied by the manufacturer. Free for design use.
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 | |
|---|---|---|---|---|---|---|
| 300 lbs | 4" × 1-1/2"Epoxy Resin | Swivel | 5-1/8" | $30.00 | Viewing | |
| 300 lbsSame capacity | 4" × 1-1/2" | Swivel | 5-1/8" | $41.00 | View → | |
| 300 lbsSame capacity | 4" × 1-1/2" | Rigid | — | $20.00 | View → | |
| 300 lbsSame capacity | 4" × 1-1/2"Nylon | Rigid | 5-1/8" | $168.00 | View → | |
| 300 lbsSame capacity | 4" × 1-1/2" | Swivel | 5.125" | $24.00 | View → |
Auto-renews, skip or cancel anytime.
Auto-renews, skip or cancel anytime.
