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The Kingpinless Heavy Duty 40 Series 6" x 2" Polyurethane on Steel Swivel Caster offers unparalleled strength and durability, with a remarkable 1200 lb capacity. Whether you're handling heavy loads in warehouses, factories, or commercial spaces, this caster ensures smooth and reliable movement.
Designed with high-quality polyurethane on steel, this caster provides excellent floor protection, ensuring long-lasting performance without damaging floors. The robust construction is tailored for tough environments where both reliability and maneuverability are essential.
Choose from top plate size options to meet your specific needs, and customize the caster further with precision ball bearings for smooth, consistent movement under heavy loads.
Engineered for optimal performance and durability, the Kingpinless 40 Series caster is a perfect solution for those who need high-quality, heavy-duty mobility solutions. Upgrade your equipment with this top-of-the-line caster, built to withstand the toughest challenges in industrial, warehouse, and commercial environments.
Transform your heavy-duty operations with the Kingpinless Heavy Duty 40 Series Swivel Caster. Offering exceptional load capacity and smooth maneuverability, it's the perfect choice for any demanding 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.
The Durastar Heavy Duty 40 Series 6" x 2" Polyurethane on Steel Swivel Caster is a premium mobility solution designed for demanding environments that require high strength and durability. With a 1200 lb load capacity, this caster is ideal for heavy-duty industrial, commercial, and warehouse applications. Whether you're moving large machinery, heavy equipment, or materials, the Durastar caster delivers smooth maneuverability and reliable performance, ensuring your operations run efficiently.
Engineered with high-quality polyurethane on a robust steel frame, the Durastar Heavy Duty 40 Series caster offers exceptional durability and smooth rolling across various floor types. The polyurethane material helps protect floors from damage while providing superior traction and stability. This makes it an ideal solution for environments where floor protection and load handling are crucial.
The caster's swivel design allows for effortless movement in any direction, reducing strain on workers and improving overall workflow efficiency. Whether you're navigating tight spaces or moving heavy loads, this caster ensures ease of use and reduced effort, enhancing both safety and productivity.
To accommodate a variety of equipment needs, the Durastar Heavy Duty 40 Series caster offers flexible options. Choose between two top plate sizes—2-1/2" x 3-5/8" or 4" x 4-1/2"—to ensure a perfect fit for your specific setup. Additionally, you can opt for precision ball bearings for smooth, consistent performance under heavy loads, ensuring that the caster operates efficiently even in demanding conditions.
The Durastar 40 Series caster is built to withstand tough environments. With a load capacity of 1200 lbs, it is designed for high-performance in industrial settings, warehouses, factories, and even commercial spaces. The caster’s corrosion-resistant construction ensures it remains durable and reliable, even when exposed to harsh conditions.
This caster is not just about strength—it’s also designed for ease of use. The ergonomic swivel mechanism provides smooth movement, while the durable polyurethane material reduces the risk of floor damage and enhances stability. Whether you're operating in a factory, warehouse, or commercial environment, the Durastar caster helps improve mobility without compromising on durability.
The Durastar Heavy Duty 40 Series caster is perfect for a wide range of applications. Its rugged construction and high load capacity make it ideal for heavy-duty tasks in industrial environments. It is commonly used in factories for moving large machinery, in warehouses for material handling, and in commercial settings where mobility and strength are essential. The versatility of this caster ensures that it can be adapted to a wide variety of equipment and operational needs.
Durastar is a trusted name in mobility solutions, known for delivering top-tier products that meet the highest standards of quality and performance. By choosing Durastar, you are investing in reliability, strength, and versatility. This caster is engineered to handle even the toughest environments, ensuring that your operations run smoothly and efficiently. Whether you're upgrading your current equipment or outfitting a new setup, the Durastar Heavy Duty 40 Series caster is the ideal choice for those who demand the best in heavy-duty mobility solutions.
Upgrade your mobility solutions with the Durastar Heavy Duty 40 Series 6" x 2" Polyurethane on Steel Swivel Caster. With its outstanding load capacity, customizable options, and robust performance, this caster is the perfect fit for your heavy-duty applications. Enhance your operations today and experience the superior quality and reliability of Durastar.
This 6" x 2" Polyurethane on Steel Swivel Kingpinless Caster – 1200 lb is rated to 1200 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", 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 -45°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 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.
$115.00
| Identification | |
|---|---|
| Part Number / SKU | 40-S-620-PU |
| Product Series | Durastar 40 Series |
| Core | |
| Load Capacity | 1200 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 RadiusDistance 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 | Polyurethane |
| Wheel Core Material | Steel |
| Construction | |
| Frame / Finish | Zinc Plated Steel |
| Temperature Range | -45°F 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 | |
|---|---|---|---|---|---|---|
| 900 lbsLighter duty | 6" × 2"Polyurethane | Rigid | 7-1/2" | $23.00 | View → | |
| 1000 lbsLighter duty | 6" × 2"Blue Solid Polyurethane | — | 7-1/2" | $182.00 | View → | |
| 1200 lbs | 6" × 2"Polyurethane | Swivel | 7-1/2" | $115.00 | Viewing | |
| 1200 lbsSame capacity | 6" × 2"Semi-Steel | Rigid | 7-1/2" | $40.00 | View → | |
| 1200 lbsSame capacity | 6" × 2"Polyurethane | Rigid | 7-1/2" | $65.00 | View → |
