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.
PRODUCT CODE: S-SPHS-4DB-2
Experience unparalleled durability and performance with the S-SPHS-4DB-2 Hamilton Spring Loaded Heavy Service Swivel Caster. Designed for rigorous industrial use, this caster boasts a 4" x 2" Duralast Polyurethane (95A) on Cast Iron Wheel – ensuring smooth mobility and prolonged wheel life. The 1/2" sealed precision ball bearings provide reduced friction and optimal load-bearing capabilities.
Hamilton is renowned for its commitment to quality and innovation. By choosing Hamilton, you're investing in a product that merges industry-leading engineering with unparalleled craftsmanship.
Note: For detailed specifications and purchase inquiries, navigate to our product page.
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.
The Hamilton Spring Loaded Swivel Caster is a testament to Hamilton's commitment to quality, innovation, and durability. Designed for those who seek unparalleled performance in their casters, this product is a synthesis of engineering precision and practical design.
The caster boasts of several engineering feats:
The Hamilton Caster is versatile, making it perfect for a wide range of industrial applications. Its smooth mobility allows seamless movement across various surfaces, from factory floors to warehouses. Furthermore, its heavy service design ensures it stands up to rigorous use without any compromise on performance.
Hamilton's relentless pursuit of perfection is evident in this caster. A combination of state-of-the-art technology and time-tested craftsmanship ensures that this product is not just a caster but a promise of quality and reliability.
Note: For more in-depth specifications and purchase options, please visit our product page.
$539.00
| Wheel Diameter | 4" |
| Wheel Tread Width | 2" |
| Temp Range | -20°F to 180°F |
| Wheel Material | Polyurethane |
| Wheel Core Material | Iron |
| Frame Material | Zinc Plated Steel |
| Mount Style | Plate |
| Rig Type | Swivel |
| Brake Type | No Brake |
Designed for engineers, manufacturers, and material handling professionals
