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.
Specialty Casters
Gate Casters
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Keyed Drive Wheels
Drywall Cart Casters
Skid Wheels & Casters for RVs
Leveling Casters
Shopping Cart Wheels & Casters
Band Equipment Casters & Wheels
Low Profile Casters
Cart Wheels & Casters
Toolbox Caster Sets
Bakery & High Temperature Casters
Kitchen Prep Table Caster Sets
Wire Shelving Casters
Silent Glide Casters

Product Features:
This Hamilton Cush-N-Tuf Rigid Caster is designed for maximum efficiency and durability. With its 450 lbs. load capacity and premium Ace-Tuf Rubber on a light-duty polypropylene wheel, it ensures smooth movement and robust support. Perfect for industrial and commercial use, the R-4108-AT model guarantees quality and reliability
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 Ace-Tuf Rigid Caster is designed for high-demand applications, offering unmatched durability and performance. Boasting an impressive load capacity of 450 lbs. at 3 mph, this 8-inch wheel ensures seamless mobility for various industrial tasks.
| Feature | Specification |
|---|---|
| Caster Type | Rigid |
| Load Capacity @ 3 mph | 450 lbs. |
| Wheel Core Material | Polyolefin |
| Wheel Material at Tread | Rubber |
Designed for both commercial and industrial applications, this caster's polyolefin wheel core paired with its rubber tread ensures durability and smooth operations. Its bright zinc-plated finish not only adds aesthetic value but also provides resistance against corrosion. From warehouses to factories, the Ace-Tuf 8-inch Rigid Caster is the preferred choice for professionals seeking reliability and performance.
This Hamilton R-4108-AT 8" Ace-Tuf Rubber Rigid Caster – 450 lb is rated to 450 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 Polyolefin wheel. Polyurethane protects finished floors, rolls quietly, and resists most chemicals while carrying heavy loads.
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 Polyolefin 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).
$77.00
| Identification | |
| Brand | Hamilton |
| Dimensions & Mounting | |
| Wheel Diameter | 8" |
| Rig Type | Rigid |
| Load & Performance | |
| Wheel Capacity | 450 lbs |
| Temp Range | -20°F to 180°F |
| Brake Type | No Brake |
| Materials & Finish | |
| Wheel Material | Polyolefin |
| Frame Material | Zinc Plated Steel |
8" x 3" Foam Filled Rigid Flat Free Caster – 275 lb | CasterHQ
8" x 3" · 275 lbs
$101
8" x 3" Foam-Filled Polyurethane Swivel Flat-Free Caster – 275 lb | CasterHQ
8" x 3" · 275 lbs
$74
8" Pneumatic Swivel Caster – 250 lb | 4" x 4-1/2" Top Plate | CasterHQ
8" x 2-1/2" · 250 lbs
$67
View all pneumatic casters: air-filled & flat-free for rough terrain →
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 | |
|---|---|---|---|---|---|---|
| 275 lbsLighter duty | 8" × 3"Polyurethane | Rigid | 9-3/4" | $101.00 | View → | |
| 275 lbsLighter duty | 8" × 3"Polyurethane | Swivel | 9-3/4" | $74.00 | View → | |
| 450 lbs | 8"Polyolefin | Rigid | — | $77.00 | Viewing |



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