Up to 350 lbs
Up to 7,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
Shock absorbing
Outdoor / rough terrain
View All Specialty Casters
Browse all specialty caster types
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.

The R-8528-SU Hamilton Cush-N-Flex Rigid Caster stands as a testament to advanced engineering and design. Crafted for those who seek exceptional mobility solutions, this caster is a blend of functionality and durability.
Whether it's for industrial applications or commercial setups, the R-8528-SU Hamilton Cush-N-Flex Rigid Caster delivers top-notch performance, making it an indispensable tool for your mobility needs.
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.
The R-8528-SU Hamilton Cush-N-Flex Rigid Caster is a remarkable representation of functional engineering, marrying agility and strength. It boasts a Super-Flex Rubber Wheel measuring 8" x 2-1/2". This design ensures flexibility without compromising on durability, thanks to its robust Aluminum core.
One of the standout features is the 3/4" Straight Roller Bearing, tailored for seamless movement, especially under considerable weight. The rigid design of the caster is ideal for enhancing mobility, allowing for fluid direction changes even in confined spaces.
The caster is explicitly crafted with industrial applications in mind. Its ability to function in demanding environments is noteworthy. Beyond its structural merits, the 60A Rubber Hardness strikes a balance - offering softness for optimal shock absorption and hardness for an extended lifespan.
A nod to sustainability, the materials used, particularly the recyclable rubber and aluminum, underline an eco-friendly commitment. Furthermore, the R-8528-SU Hamilton Caster is virtually maintenance-free, designed to serve for prolonged periods without necessitating constant attention or upkeep.
For those seeking a caster that effortlessly combines resilience, mobility, and eco-consciousness, the R-8528-SU Hamilton Cush-N-Flex Rigid Caster is a top-tier choice, promising both performance and longevity.
This caster runs a Polyurethane wheel with a 2-1/2" tread width. Polyurethane protects finished floors, rolls quietly, and resists most chemicals while carrying heavy loads.
This caster uses a top-plate mount. 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.
Rated for -20°F to 180°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.
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).
$141.00
| Identification | |
| Brand | Hamilton |
| Dimensions & Mounting | |
| Wheel Diameter | 8" |
| Wheel Tread Width | 2-1/2" |
| Mount Style | Plate |
| Rig Type | Rigid |
| Load & Performance | |
| Temp Range | -20°F to 180°F |
| Brake Type | No Brake |
| Materials & Finish | |
| Wheel Material | Polyurethane |
| Wheel Core Material | Aluminum |
| Frame Material | Zinc Plated Steel |
Hamilton 8" x 2 1/2" Duralast Polyurethane Rigid Caster – 3/4" Ball Bearing | CasterHQ
8" x 2-1/2"
$0
Hamilton 8" x 2 1/2" Duralast Poly Swivel Caster – 3/4" Ball Bearing | CasterHQ
8" x 2-1/2"
$0
Hamilton 8" x 2 1/2" Duralast Polyurethane Rigid Caster – 3/4" Bearing | CasterHQ
8" x 2-1/2"
$0
View all 8" x 2-1/2" casters & wheels · the platform-truck standard size →
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, all in-stock.
| Casters (in stock) | Load capacity | Wheel | Type | Overall height | Price | |
|---|---|---|---|---|---|---|
| — | 8" × 2-1/2"Polyurethane | Rigid | — | $141.00 | Viewing | |
| 250 lbsHeavier duty | 8" × 2-1/2" | Swivel | 10" | $67.00 | View → | |
| 250 lbsHeavier duty | 8" × 2-1/2"Rubber | Rigid | 10" | $58.00 | View → | |
| 250 lbsHeavier duty | 8" × 2-1/2" | Swivel with Brake + brake | 10" | $71.00 | View → | |
| 1500 lbsHeavier duty | 8" × 2-1/2" | Rigid | — | $224.00 | View → |





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