Up to 350 lbs
Up to 7,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
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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.
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The Colson Casters Stainless 8" x 2" Hi-Temp Retort Roller Bearing Rigid Caster is engineered to meet the demanding needs of industries requiring high-temperature resistance and robust durability. Crafted from stainless steel, this caster is resistant to corrosion and built to withstand harsh environments.
Featuring an 8" x 2" wheel, this caster provides excellent maneuverability and load-bearing capacity, even in environments with heavy-duty requirements. The high-quality roller bearing ensures a smooth, low-friction operation, reducing wear and tear while increasing the caster's lifespan.
The 4" x 4.5" plate design allows for easy installation and a stable mount, offering enhanced support in industrial and commercial settings. Whether you’re working with high temperatures in food processing or heavy machinery in manufacturing, this rigid caster performs reliably in extreme conditions, withstanding temperatures up to 250°F.
Trust Colson Casters for your most demanding mobility solutions. This caster is designed not only for functionality but also for long-term performance, ensuring your operations run smoothly without interruptions. Upgrade your equipment with a product that prioritizes durability, ease of use, and dependability.
Upgrade your equipment and operations with Colson Casters' Stainless Hi-Temp Roller Bearing Caster. Built for industries where performance and durability are critical, this caster ensures smooth, safe, and efficient movement in any environment.
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
Because of its size and weight, this item typically ships LTL freight on a pallet. Smaller add-on items may ship parcel. Freight cost is calculated by destination and shown before payment, or quoted for large orders.
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 Colson Casters 8" x 2" Hi-Temp Retort Roller Bearing Rigid Caster with a 4" x 4.5" plate is a top-tier mobility solution designed for demanding industrial, commercial, and food processing environments. Built from durable, corrosion-resistant stainless steel, this caster ensures long-lasting performance even in harsh conditions. Whether you're in need of a solution for heavy-duty manufacturing, food retort processes, or high-temperature industrial settings, this caster excels in both functionality and durability.
Perfectly suited for high-temperature applications, this caster is capable of withstanding environments up to 250°F. It is engineered for reliability in food processing facilities, medical labs, warehouses, and industrial applications where heat resistance is crucial. Its durable construction combined with an ergonomic wheel design provides smooth movement, reduced friction, and minimized wear in even the most demanding environments.
With an 8" x 2" wheel size, the caster is engineered for optimal load-bearing capacity and smooth rolling action. The roller bearing ensures smooth and efficient operation, even under heavy loads, reducing the need for frequent maintenance. The 4" x 4.5" plate provides a solid mounting base, enhancing stability, and ease of use during installation, providing a strong and stable connection to your equipment.
As part of Colson's renowned reputation for quality, this caster is USA-made, ensuring superior craftsmanship and dependability. Designed with both functionality and long-term performance in mind, the Colson Casters 8" x 2" Hi-Temp Retort Roller Bearing Rigid Caster delivers exceptional durability and reliability, saving you time and money by reducing downtime and replacing parts less frequently.
No matter the industry, whether it’s industrial manufacturing, food processing, or warehouse operations, Colson Casters has created a product that ensures effortless mobility, safety, and operational efficiency. Choose this caster to support your equipment, and experience the ease of movement, the peace of mind of dependability, and the longevity of a well-crafted product.
At Colson, we prioritize quality and durability in every product. This caster features superior stainless steel construction that resists corrosion, ensuring long-term functionality even in challenging environments. Whether exposed to high temperatures or continuous use, this caster’s heavy-duty materials guarantee lasting performance and reduce the need for frequent replacements.
The roller bearing design reduces friction and increases operational lifespan, ensuring your caster performs smoothly over time, even in tough, high-load applications. The 8" x 2" wheels are optimized for movement, offering superior stability, while the rigid plate design provides robust support for easy installation and long-term reliability.
Choose the Colson Casters 8" x 2" Hi-Temp Retort Roller Bearing Rigid Caster for your mobility needs. Built for superior performance, durability, and reliability in high-temperature environments, this caster is the ultimate solution for your demanding applications. Trust in Colson's industry-leading quality for all your mobility needs.
This Colson D4.08108.839 8" x 2" Hi-Temp Rigid Stainless Caster – 4" x 4.5" Plate is rated to 900 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" x 4-1/2" plate and a 2-5/8" x 3-5/8" slotted to 3" x 3" 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 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 -40°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.
The overall height (floor to top of plate or stem) is 9.5". 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.
$218.00
| Identification | |
|---|---|
| Part Number / SKU | D4.08108.839-RW-SS-WB29 |
| Product Series | Colson 4 Series |
| Core | |
| Load Capacity | 900 lbs |
| Wheel Diameter | 8" |
| Wheel Width | 2" |
| Floor to top of mounting plate (or stem shoulder).Overall Height (OAH)?Floor to top of mounting plate (or stem shoulder). | 9.5" |
| Rig Type | Rigid |
| Brake | No Brake |
| Mounting | |
| Mount Style | Plate |
| Plate Size | 4" x 4-1/2" |
| Center-to-center spacing of the top-plate mounting holes.Bolt Hole Pattern (BHP)?Center-to-center spacing of the top-plate mounting holes. | 2-5/8" x 3-5/8" slotted to 3" x 3" |
| Wheel | |
| Wheel Material | Polyurethane |
| Bearing Type | Roller Bearing |
| Construction | |
| Frame / Finish | 304 Stainless Steel |
| Temperature Range | -40°F to 180°F |
| Compliance | |
| Buy American | Yes |
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 2" tread plate caster family.
Series geometry, reference only. Verify critical dims against the spec table.
Free for design use. Redistribution or resale prohibited.
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 | |
|---|---|---|---|---|---|---|
| 700 lbsLighter duty | 8" × 2"Gray Rubber | Swivel | 9-1/2" | $32.50 | View → | |
| 700 lbsLighter duty | 8" × 2"Semi-Steel | — | 9-1/2" | $164.00 | View → | |
| 900 lbs | 8" × 2"Polyurethane | Rigid | 9.5" | $218.00 | Viewing | |
| 1000 lbsHeavier duty | 8" × 2"Blue Solid Polyurethane | — | 9-1/2" | $199.00 | View → | |
| 1000 lbsHeavier duty | 8" × 2"Polyurethane | Rigid | 9-1/2" | $30.00 | View → |





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