Up to 350 lbs
Up to 7,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
Shock absorbing
Outdoor / rough terrain
View All Specialty Casters
Browse all specialty caster types
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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STEP .step most common3D solid for SolidWorks, Inventor, Fusion 360, Creo, NXSeries geometry, reference only. Free for design use; redistribution or resale prohibited.
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The Kingpinless Heavy Duty 40 Series 6" x 2" Swivel Caster with a solid polyurethane on glass-filled nylon wheel is engineered to meet the demands of the most challenging environments. With an impressive 1800 lb capacity, this caster is built to carry heavy loads with ease and efficiency, making it a perfect choice for industries like manufacturing, warehouses, and logistics.
Constructed from high-performance materials, the solid polyurethane on glass-filled nylon wheel provides excellent abrasion resistance and durability while maintaining smooth movement across various surfaces. Whether you're moving heavy machinery, equipment, or materials, this caster delivers long-lasting performance and reliable mobility.
The Kingpinless 40 Series offers flexibility with your choice of top plate sizes, ensuring compatibility with a wide range of setups. Additionally, the caster comes with customizable bearing options that enhance the overall maneuverability and responsiveness in high-stress environments.
The ergonomic design of this caster makes it easy to swivel and move large loads, minimizing strain on operators and improving overall operational efficiency. Whether for industrial, commercial, or heavy-duty warehouse settings, the Kingpinless Heavy Duty 40 Series is the ideal solution for any application requiring strength, reliability, and smooth movement.
Choose the Kingpinless Heavy Duty 40 Series Caster for your toughest projects. Maximize your productivity with a caster designed for strength, durability, and smooth movement. Upgrade your mobility solutions today and experience the Kingpinless difference.
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 Durastar Heavy Duty 40 Series 6" x 2" Swivel Caster is engineered for heavy-duty industrial and commercial applications. Designed with high-performance materials, this caster delivers exceptional durability, smooth mobility, and reliability, making it an ideal choice for environments where durability and strength are paramount.
Constructed from high-quality materials, the Durastar Heavy Duty 40 Series caster is designed to excel in environments where durability is essential. The solid polyurethane on glass-filled nylon provides excellent resistance to wear, impacts, and abrasions, ensuring the caster maintains its performance even in high-stress situations. This durability translates to fewer replacements and a longer service life, making it a cost-effective choice for businesses.
The caster's 1800 lb load capacity means it can handle large and heavy loads effortlessly, ensuring that even in the most demanding environments, you can trust the Durastar 40 Series to deliver consistent, reliable performance. This makes it an excellent choice for industries like manufacturing, warehousing, logistics, and more.
The Durastar 40 Series caster is engineered for superior maneuverability. Its smooth swivel mechanism ensures effortless movement, even when navigating tight spaces or moving heavy machinery. The ergonomic design reduces the strain on operators, ensuring they can move large loads with minimal effort and improve overall operational efficiency.
Whether used in tight corridors, expansive warehouses, or busy production floors, the caster's smooth and reliable movement increases productivity while minimizing user fatigue, contributing to a more efficient workflow.
With its ability to support heavy loads and offer smooth movement, the Durastar Heavy Duty 40 Series Caster is highly versatile. It is ideal for a variety of settings, including:
When you choose the Durastar Heavy Duty 40 Series Caster, you're investing in more than just a caster; you're choosing long-lasting performance, reliability, and strength. Engineered for the toughest jobs, the caster offers superior durability, easy maneuverability, and flexibility for a wide range of applications.
Enhance your operations with a high-performance caster designed to reduce downtime, improve efficiency, and provide dependable mobility solutions. The Durastar 40 Series is built to meet the demands of your heavy-duty tasks, making it a trusted choice for businesses seeking durability and superior performance in their mobility solutions.
This 6" x 2" Polyurethane on Nylon Swivel Kingpinless Caster – 1800 lb is rated to 1800 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 Solid 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", 4-1/2" x 6-1/4" 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 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 Up 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 Solid 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 7-1/2". 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.
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.
$80.00
| Identification | |
|---|---|
| Part Number / SKU | 40-S-620-HU |
| Product Series | Durastar 40 Series |
| Core | |
| Load Capacity | 1800 lbs |
| Wheel Diameter | 6" |
| Wheel Width | 2" |
| Floor to top of mounting plate (or stem shoulder).Overall Height (OAH)?Floor to top of mounting plate (or stem shoulder). | 7-1/2" |
| Rig Type | Swivel |
| Brake | No Brake |
| Distance from swivel centerline to the outer edge of the wheel when turned.Swivel Radius?Distance from swivel centerline to the outer edge of the wheel when turned. | 4-1/2" |
| Swivel Construction | Kingpinless |
| Mounting | |
| Mount Style | Plate |
| Plate Size | 4" x 4-1/2", 4-1/2" x 6-1/4" |
| Wheel | |
| Wheel Material | Solid Polyurethane |
| Construction | |
| Frame / Finish | Zinc Plated Steel |
| Temperature Range | Up to 180°F |
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.
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 | |
|---|---|---|---|---|---|---|
| 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 → | |
| 1800 lbs | 6" × 2"Solid Polyurethane | Swivel | 7-1/2" | $80.00 | 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 → |





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