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-ZFHS-4SWC85
Revamp your heavy-duty mobility with the high-performance Hamilton Spinfinity S-ZFHS-4SWC85 Swivel Caster. This premium-quality, maintenance-free caster is part of the reputable ZFHS Series, designed for smooth, efficient operation in demanding conditions. The caster features a robust 4" x 2" UltraGlide (85A) Twin Wheel with a stunning blue tread on an aluminum core.
What sets the S-ZFHS-4SWC85 apart is its advanced design. Its kingpinless swivel head enhances durability and reduces maintenance needs. Also, the 3/4" sealed precision ball bearings offer superior load capacity and longevity, enhancing the caster's overall performance.
This state-of-the-art caster offers unrivaled mobility and reliability, making it an excellent investment for a wide range of heavy-duty applications. Experience the Hamilton Spinfinity advantage today!
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 Spinfinity S-ZFHS-4SWC85 Kingpinless Swivel Caster is a top-of-the-line product designed for optimal performance and longevity. This heavy-duty caster combines superior engineering and high-quality materials to offer users the best in mobility solutions.
The kingpinless design is a standout feature of the Hamilton Spinfinity series. This design reduces wear and tear, significantly enhancing the caster's durability and stability. It is especially beneficial in applications that involve high-speed towing or frequent changes in direction.
The 4"x2" UltraGlide (85A) twin wheel is a highlight feature, promising smooth movement and excellent load-bearing capacity. The blue tread on an aluminum core offers optimal friction for secure movement while maintaining a sleek aesthetic.
This caster comes with 3/4" sealed precision ball bearings that not only provide smooth swivel action but also minimize the need for maintenance, saving users both time and cost.
The Hamilton Spinfinity S-ZFHS-4SWC85 Swivel Caster is built for optimal efficiency and reliability, even in challenging environments. Its durable construction ensures it can withstand the rigors of heavy use, making it a cost-effective choice for businesses in need of robust mobility solutions.
$328.00
| Wheel Diameter | 4" |
| Wheel Tread Width | 2" |
| Temp Range | -20°F to 180°F |
| Wheel Material | Polyurethane |
| Wheel Core Material | Aluminum |
| Frame Material | Zinc Plated Steel |
| Mount Style | Plate |
| Rig Type | Swivel |
| Brake Type | No Brake |
Designed for engineers, manufacturers, and material handling professionals
