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![Top plate bolt pattern drawing, ["6\" x 7-1/2\""] plate](http://casterhq.com/cdn/shop/files/casterhq-c8g-1450-top-plate-drawing_100x.png?v=1792299766)
The Ultimate Kingpinless 8" x 3" Forged Steel Caster is a heavy-duty industrial caster designed for extreme environments and high-capacity applications. This top-of-the-line caster features a 7.5" x 6" top plate for superior stability and load distribution, ensuring your equipment rolls smoothly and safely even under the most demanding conditions.
Here are just a few of the benefits of the Ultimate Kingpinless Caster:
Got questions about the Ultimate Kingpinless Caster or any other caster need? Our Caster Experts are here weekdays 8 am - 5 pm to provide expert advice for your project needs.
Move heavyweight champions with ease. Our industrial casters are ideal for heavy machinery, industrial equipment, and material handling applications. The kingpinless design ensures maximum durability and smooth moment under extreme loads.
Precision-engineered for demanding environments. We use only the highest quality materials and construction techniques to create casters that can withstand the toughest conditions.
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.
Got questions about our industrial casters? Our product specialists are here weekdays 8 am - 5 pm to help you choose the perfect solution for your needs.
This Albion 8" x 3" Forged Steel Rigid Kingpinless Caster – 5500 lb is rated to 5500 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 uses a top-plate mount with a 6" x 7-1/2" 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 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.
The overall height (floor to top of plate or stem) is 10.5". 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.
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.
$834.00
| Identification | |
|---|---|
| Part Number / SKU | 600FS08509R |
| Core | |
| Load Capacity | 5500 lbs |
| Wheel Diameter | 8" |
| Wheel Width | 3" |
| Floor to top of mounting plate (or stem shoulder).Overall Height (OAH)Floor to top of mounting plate (or stem shoulder). | 10.5" |
| Rig Type | Rigid |
| Brake | No Brake |
| Swivel Construction | Kingpinless |
| Mounting | |
| Mount Style | Plate |
| Plate Size | 6" x 7-1/2" |
| Wheel | |
| Wheel tread hardness. Shore D is hard; Shore A is softer.Durometer (Shore)Wheel tread hardness. Shore D is hard; Shore A is softer. | Rockwell 80 B |
| Wheel Color | Clear Coat Enamel |
| Bearing Type | Tapered Roller Bearing |
| Construction | |
| Frame / Finish | Zinc Plated Steel |
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 3" 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 | |
|---|---|---|---|---|---|---|
| 3500 lbsLighter duty | 8" × 3"Polyurethane | Rigid | 10-1/2" | $353.00 | View → | |
| 3500 lbsLighter duty | 8" × 3"Polyurethane | Swivel | 10-1/8" | $252.00 | View → | |
| 5500 lbs | 8" × 3" | Rigid | 10.5" | $834.00 | Viewing | |
| 5500 lbsSame capacity | 8" × 3"Polyurethane | Swivel | 8" | $373.00 | View → | |
| 6000 lbsHeavier duty | 8" × 3"Ductile Iron | Rigid | 10-1/8" | $201.00 | View → |
![Top plate bolt pattern drawing, ["6\" x 7-1/2\""] plate](http://casterhq.com/cdn/shop/files/casterhq-c8g-1450-top-plate-drawing_1000x.png?v=1792299766)