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.
Custom made to order. All sales final.
Each Hamilton product is custom manufactured for your order and ships in about 4-6 weeks. Please confirm all specs before checkout, since made-to-order items aren't eligible for returns, exchanges or refunds. Need help? Call 844-439-4335 or email info@casterhq.com and we'll verify fit for you.
The Hamilton R-TG-8AR Thread Guard Rigid Caster is a pinnacle of caster design, featuring an 8" x 2" Vulcalite non-marking rubber wheel mounted on a sturdy aluminum core. This combination not only ensures durability but also offers a smooth ride across various surfaces.
The caster's wheel is crafted from high-quality Vulcalite rubber with a 70A durometer rating, providing a perfect balance of softness and resilience. This ensures a quiet operation and floor protection, making it ideal for sensitive environments.
This caster comes equipped with a thread guard, adding an extra layer of protection against debris and thread entanglement, thereby prolonging the wheel's life and maintaining consistent performance.
The R-TG-8AR is ideal for a range of applications, from hospital equipment to retail displays. Its non-marking nature makes it a go-to choice for indoor use where floor care is essential.
By choosing the Hamilton R-TG-8AR, you're opting for a caster that offers unmatched quality, performance, and versatility. Enhance your equipment's mobility with a caster designed for the demands of modern industrial and commercial environments.
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 Hamilton R-TG-8AR Thread Guard Rigid Caster represents the pinnacle in caster technology. Featuring an 8" x 2" Vulcalite non-marking rubber wheel on a sturdy aluminum core, this caster is engineered for both durability and performance. Its 70A durometer rubber ensures a quiet, gentle roll on various floor types, making it ideal for sensitive environments.
Perfect for a wide array of settings, the R-TG-8AR is particularly suited for indoor use where floor protection is crucial. Its robust design makes it a favorite in healthcare, retail, and industrial environments.
Choosing the Hamilton R-TG-8AR Rigid Caster means opting for a blend of quality, efficiency, and longevity. Its advanced features and reliable performance make it an ideal choice for enhancing the mobility of your equipment or furniture.
Our commitment to customer satisfaction ensures you get the best in caster technology with the Hamilton R-TG-8AR. Enhance your operational efficiency with a caster designed for the demands of modern environments.
This Hamilton R-TG-8AR 8" x 2" Vulcalite Rigid Caster – 500 lb is rated to 500 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 Rubber wheel with a 2" tread width. Rubber absorbs shock and protects floors, and runs quietly, which suits noise-sensitive and light-to-medium duty use.
This caster uses a top-plate mount with a 4" x 4-1/2" plate and a 2-5/8" x 3-5/8" and 3" x 3" bolt pattern. 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 -30°F to 250°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 Rubber wheel performs best on rough, uneven, or outdoor surfaces such as asphalt, gravel, and cracked concrete. For non-marking or clean-environment needs, ask us about matching tread options.
The overall height (floor to top of plate or stem) is 9-1/2". Account for it when checking equipment clearance, dock height, and ergonomic working height.
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).
$136.00
| Identification | |
|---|---|
| Part Number / SKU | R-TG-8AR |
| Replacement Wheel Part No | W-820-AR-3/4 |
| Core | |
| Load Capacity | 500 lbs |
| Wheel Diameter | 8" |
| Wheel Width | 2" |
| Floor to top of mounting plate (or stem shoulder).Overall Height (OAH)?Floor to top of mounting plate (or stem shoulder). | 9-1/2" |
| Rig Type | Rigid |
| Brake | No Brake |
| Mounting | |
| Mount Style | Plate |
| Plate Size | 4" x 4-1/2" |
| Center-to-center spacing of the top-plate mounting holes.Bolt Hole Pattern (BHP)?Center-to-center spacing of the top-plate mounting holes. | 2-5/8" x 3-5/8" and 3" x 3" |
| Recommended Mounting Bolt | 3/8" |
| Wheel | |
| Wheel Material | Rubber |
| Wheel Core Material | Aluminum |
| Wheel Color | Solid White |
| Bearing Type | Straight Roller Bearing |
| Construction | |
| Frame / Finish | Bright Zinc Plated |
| Temperature Range | -30°F to 250°F |
| Unit Weight | 10 lbs |
| Compliance | |
| Buy American | Yes |
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 within the same duty class, all in stock.
| Casters (in stock) | Load capacity | Wheel | Type | Overall height | Price | |
|---|---|---|---|---|---|---|
| 400 lbsLighter duty | 8" × 2"Gray Rubber | Rigid | 9-1/2" | $62.00 | View → | |
| 400 lbsLighter duty | 8" × 2"Gray Rubber | Swivel | 9-1/2" | $69.00 | View → | |
| 500 lbs | 8" × 2"Rubber | Rigid | 9-1/2" | $136.00 | Viewing | |
| 600 lbsHeavier duty | 8" × 2"Gray Rubber | — | — | $31.00 | View → | |
| 600 lbsHeavier duty | 8" × 2"Gray Rubber | Rigid | 9-1/2" | $36.00 | View → |





Search
