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The Kingpinless Heavy Duty 40 Series caster is engineered to provide superior performance in demanding environments. With a 4" x 2" DURATOUGH Polyurethane on Polyurethane construction, this swivel caster is built to handle heavy loads with ease, offering a robust 700 lb capacity.
Featuring a dual-layer polyurethane construction, this caster provides exceptional durability, offering protection against abrasion and wear, making it perfect for heavy-duty applications in warehouses, factories, and other industrial settings. The smooth swivel design ensures easy maneuverability, even in tight spaces, providing efficiency and versatility.
The caster is available with customizable top plate sizes and bearing choices to suit a wide range of needs. Whether you require a more specific plate size for your setup or prefer a particular bearing type to optimize your operation, the Kingpinless Heavy Duty 40 Series caster provides flexibility and reliable performance.
Upgrade your industrial mobility with Kingpinless's Heavy Duty 40 Series Swivel Casters. Designed to deliver exceptional strength, smooth movement, and customizable options, these casters are built for demanding environments. Choose the Kingpinless caster that meets your needs today for lasting performance and reliability.
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 4" x 2" DURATOUGH Polyurethane on Polyurethane Swivel Caster is engineered to offer an exceptional combination of durability, strength, and smooth maneuverability. With a remarkable 700 lb capacity, this caster is perfect for heavy-duty applications in a variety of industrial and commercial environments. Whether you’re handling heavy machinery, material handling carts, or complex equipment, this caster ensures reliable performance under demanding conditions.
Designed with Duratough Polyurethane on Polyurethane construction, the caster offers superior wear resistance, allowing it to maintain high performance even in harsh environments. The swivel design ensures easy maneuverability, reducing user strain and promoting seamless movement through tight spaces.
Choose between several top plate sizes and bearing options to tailor this caster to your specific requirements. Whether you need a high load-bearing capacity or specialized bearing options, the Durastar Heavy Duty 40 Series Caster provides customizable solutions for a range of mobility needs.
Whether you are moving heavy equipment, machinery, or materials, the Durastar Heavy Duty 40 Series Caster is designed to handle the toughest tasks. It’s perfect for:
When selecting casters for your industrial or commercial needs, the Durastar Heavy Duty 40 Series Caster offers an unbeatable combination of durability, customization, and reliable performance. The caster’s 700 lb load capacity ensures it can handle even the heaviest equipment, while the Duratough Polyurethane on Polyurethane construction guarantees long-lasting wear resistance, even under challenging conditions.
With customizable top plate sizes and bearing options, this caster is designed to fit seamlessly into your unique setup, whether you need more flexibility or enhanced load-bearing strength. It’s also designed for easy installation, helping you get back to work quickly and efficiently.
Choose the Durastar Heavy Duty 40 Series Caster for a solution that enhances your mobility, reduces downtime, and provides long-term value for your equipment and operations.
This 4" x 2" DURATOUGH Polyurethane Swivel Kingpinless Caster – 700 lb is rated to 700 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 5-5/8". 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.
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.
$72.00
| Identification | |
|---|---|
| Part Number / SKU | 40-S-420-PTU |
| Product Series | Durastar 40 Series |
| Core | |
| Load Capacity | 700 lbs |
| Wheel Diameter | 4" |
| Wheel Width | 2" |
| Floor to top of mounting plate (or stem shoulder).Overall Height (OAH)Floor to top of mounting plate (or stem shoulder). | 5-5/8" |
| 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. | 3-1/8" |
| 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 |
| 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 | |
|---|---|---|---|---|---|---|
| 400 lbsLighter duty | 4" × 2"Rubber | Swivel | 5-5/8" | $24.00 | View → | |
| 600 lbsLighter duty | 4" × 2"High Temp Phenolic | Swivel with Brake + brake | 5-5/8" | $265.00 | View → | |
| 700 lbs | 4" × 2"Polyurethane | Swivel | 5-5/8" | $72.00 | Viewing | |
| 700 lbsSame capacity | 4" × 2"Semi-Steel | Rigid | 5-5/8" | $38.00 | View → | |
| 700 lbsSame capacity | 4" × 2"Polyurethane | Swivel | 5-5/8" | $70.00 | View → |
