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200,000+ Orders Fulfilled for OEM & MRO Teams Nationwide

100+ Years of Combined Caster Industry Experience

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Automatic Bulk Pricing | OEM & MRO Volume Discounts Applied at Checkout

8 Inch Orange Sirius Heavy Duty Donut Polyurethane on Aluminum Wheel - Swivel Casters - Plate Size: 4" x 4-1/2"

8" x 2" Orange Polyurethane on Aluminum Wheels - Swivel & Rigid Casters - Automotive Casters

Plate Size: 4" x 4-1/2"

8 Inch (8" x 2") CasterHQ's Sirius HD Poly on Aluminum Wheels are used in many applications where the casters and wheels are exposed to water or chemicals. Aluminum is resistant to rust and provides a very strong core for the liquid cast polyurethane tread. Polyurethane on Aluminum wheels are used in Food Processing Equipment, Food Service, Hospitals, Research Laboratories, Pharmaceutical Laboratories, Bakeries, Schools, Institutional, and industrial applications and environments. Polyurethane is a non-marking tire which are much easier to roll compared to a softer rubber wheel. Polyurethane on Aluminum wheels are great for wash down applications and wet, corrosive environments.These are great wheels as long as they are not abused, over-loaded, or used in high impact shock load applications. Polyurethane on Aluminum Wheels are much lighter in weight but have a high weight capacity. We offer multiple polyurethane tread durometers (hardness) for different applications depending on your floor type and use. We offer flat tread and crown treads with multiple bearing options. If you need a application recommendation please contact us for expert advice.

High Grade Polyurethane Treads
85 Shore A Durometer Tread Deflects Debris
Non-Marking and Rolls Effortlessly
Unmatched load capacities in its class
Ideal for towline applications
Multi-Year Tread Durability
Effortlessly Rolling using larer 6205 Sealed Precision Ball Bearings
Ergonomic Wheel used in Automotive Plants
Reduces Push / Pull Force by 30-60%
Reduces worker comp claims

Questions? Please Call us @ 844-439-4335 or Contact Us Here
For quick online service please email us: sales@casterhq.com and a Caster Expert will help you answer any questions.

We ship Fast!!!
If ordered before 12-noon we ship all orders typically ship SAME DAY!
All orders received after 12-noon will ship the following business day

Caster Engineering Tools

These calculators apply to any caster application—even if you’re browsing a different category. Use them to estimate load rating per caster, select wheel material, and estimate push/pull force. Expand any tool for full analysis + a share-ready spec line.

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CasterSpec^™ Load Calculator

Fast estimate. Expand for safety factor + uneven floor + spec output.

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Load

Total load (lb)

# casters

Floor / bumps