Up to 350 lbs
Up to 6,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
High-capacity loads
Shock absorbing
Corrosion resistant
Outdoor / rough terrain
OEM replacements
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.
Most in-stock items ship same or next business day. Shipping rates shown at checkout.
PRODUCT CODE: S-ERGO-4SPB
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.
Transparent pricing
All pricing and quantity discounts are applied automatically. No promo codes required and no post-checkout price changes.
Upfront shipping costs
Shipping is calculated by order size and weight. Final shipping costs are shown before payment so there are no surprises.
Business-friendly ordering
We support bulk orders, repeat purchases, and fast quotes for larger or custom requirements.
Real support from product specialists
Need help confirming fit, compatibility, or application? Our team works directly with engineers, maintenance teams, and buyers every day.
Trusted by industrial and commercial customers
CasterHQ supplies casters and wheels for manufacturing, material handling, retail, and distribution environments nationwide.
When will my order ship?
In-stock items typically ship same or next business day. Weekend orders ship Monday or Tuesday unless stated otherwise.
Will shipping cost more at checkout?
Shipping is not free on most orders. Your final shipping cost is shown before payment.
Central & Southern U.S.: typically 1–2 business days
East & West Coasts: typically 2–3 business days
Remote areas may take longer.
Some custom products (select Made in USA casters, keyway wheels, drive wheels) are built after purchase and ship on a longer lead time. When applicable, the ship-time estimate is shown on the product page.
Contact us before ordering and we’ll confirm total landed cost upfront. Contact us.
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.
$710.00
| Wheel Diameter | 4" |
| Wheel Tread Width | 2" |
| Temp Range | -20°F to 180°F |
| Wheel Material | Cast Iron |
| Frame Material | Zinc Plated Steel |
| Mount Style | Plate |
| Rig Type | Swivel |
| Brake Type | No Brake |
Designed for engineers, manufacturers, and material handling professionals
