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Custom made to order. All sales final.
Each Hamilton product is custom manufactured for your order and ships in about 4-6 weeks. Please confirm all specs before checkout, since made-to-order items aren't eligible for returns, exchanges or refunds. Need help? Call 844-439-4335 or email info@casterhq.com and we'll verify fit for you.
Discover the S-ERGO-4SPB Hamilton Ergo-X2 Swivel Caster - the gold standard for ergonomic mobility in industrial settings. Equipped with a resilient 4" x 2" Ergo-Glide Polyurethane (85A) on Cast Iron Wheel, this caster promises long-lasting durability. The inclusion of 1/2" sealed precision ball bearings ensures a seamless and smooth movement, making it a top pick for professionals seeking reliable caster solutions.
Opt for the Ergo-X2 series by Hamilton and experience industry-leading maneuverability and endurance. Specifically designed for challenging industrial environments, our swivel caster ensures minimal maintenance and optimal performance. Trust Hamilton's legacy of excellence in ergonomic caster manufacturing.
Considering integrating the S-ERGO-4SPB into your equipment? Hamilton's Caster Experts are always available to assist. Contact us on weekdays between 8 am - 5 pm for top-tier caster advice customized to your industrial requirements.
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.
Introduction: The Hamilton Ergo-X2 S-ERGO-4SPB Swivel Caster combines state-of-the-art design with Hamilton's legacy of quality manufacturing. Designed for the most demanding industrial settings, this caster stands out in both performance and durability.
Ergo-Glide represents a leap forward in wheel technology. The 4" x 2" wheel ensures a smoother, friction-reduced movement, making it perfect for tasks requiring precision and ease. The polyurethane material further ensures wear resistance and longevity.
The S-ERGO-4SPB's base is crafted from cast iron, known for its toughness and wear resistance. Coupled with the 1/2" sealed precision ball bearings, users can expect a fluid motion with minimal required maintenance.
Being tailored for aerospace and other high-demand sectors, the S-ERGO-4SPB offers features that cater specifically to the challenges of such environments. Its robust design ensures it can handle the weight and strain typical in these industries.
Choosing the Ergo-X2 series means investing in Hamilton's long-standing reputation in caster manufacturing. Known for producing top-tier casters, Hamilton continues to set industry standards in innovation and quality.
For those looking to optimize their operations with a reliable, high-performance caster, the S-ERGO-4SPB Hamilton Ergo-X2 Swivel Caster is the ideal choice. It represents a perfect fusion of advanced technology, robust materials, and decades of industry experience.
This Hamilton S-ERGO-4SPB 4" x 2" Polyurethane Swivel Ergo Caster – 600 lb is rated to 600 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 4-1/2" x 6-1/2" plate and a 2-7/16" x 4-15/16" 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 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 -5°F to 160°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).
$710.00
| Identification | |
|---|---|
| Part Number / SKU | S-ERGO-4SPB |
| Replacement Wheel Part No | W-420-SPB-1/2 |
| Core | |
| Load Capacity | 600 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 |
| Horizontal distance from the swivel centerline (kingpin) to the wheel axle.Swivel Lead (Offset)Horizontal distance from the swivel centerline (kingpin) to the wheel axle. | 2-1/2" |
| Mounting | |
| Mount Style | Plate |
| Plate Size | 4-1/2" x 6-1/2" |
| Center-to-center spacing of the top-plate mounting holes.Bolt Hole Pattern (BHP)Center-to-center spacing of the top-plate mounting holes. | 2-7/16" x 4-15/16" |
| Recommended Mounting Bolt | 1/2" |
| Wheel | |
| Wheel Material | Polyurethane |
| Wheel Core Material | Cast Iron |
| Wheel Color | Blue Poly on Gray Center |
| Bearing Type | Precision Sealed Ball Bearing |
| Construction | |
| Frame / Finish | Crimson Powder |
| Temperature Range | -5°F to 160°F |
| Unit Weight | 14 lbs |
| 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 | |
|---|---|---|---|---|---|---|
| 400 lbsLighter duty | 4" × 2"Rubber | Rigid | 5-5/8" | $23.00 | View → | |
| 400 lbsLighter duty | 4" × 2"Rubber | Swivel | 5-5/8" | $24.00 | View → | |
| 600 lbs | 4" × 2"Polyurethane | Swivel | 5-5/8" | $710.00 | Viewing | |
| 600 lbsSame capacity | 4" × 2"High Temp Phenolic | Swivel with Brake + brake | 5-5/8" | $265.00 | View → | |
| 700 lbsHeavier duty | 4" × 2"Semi-Steel | Rigid | 5-5/8" | $38.00 | View → |
