ISO 9001:2015 Quality Manufacturing · ANSI ICWM Performance Tested
98.7% On-Time Ship Rate Across All Orders
200,000+ Orders Fulfilled for OEM & MRO Teams Nationwide
100+ Years of Combined Caster Industry Experience
Automatic Bulk Pricing | OEM & MRO Volume Discounts Applied at Checkout
Up to 350 lbs · Light Duty Applications
Up to 7,200 lbs · Industrial Duty
Up to 17,500 lbs · Heavy Industrial
Up to 40,000 lbs · Extreme Load Applications
Up to 40,000 lbs · Increased Maneuverability
Up to 3,100 lbs · Industrial Shock Absorbing
Up to 3,200 lbs - Corrosion Resistant
Stainless Steel
Up to 8,400 lbs.
Explore All Specialty Caster Applications
From Everyday Use to Niche Solutions
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.
Hamilton's 8" Black on Iron | R Wheels are engineered for resilience and efficiency, designed to support heavy loads without compromising on mobility. The iron core provides unmatched strength, while the black tread ensures smooth operation across various surfaces. Ideal for industrial applications where reliability is paramount.
Whether it's manufacturing facilities, warehouses, or outdoor environments, these wheels deliver consistent performance. Their robust construction makes them suitable for a wide range of applications, from carts and trolleys to heavy machinery, enhancing efficiency and productivity in any setting.
Opt for Hamilton's 8" Black on Iron | R Wheels for your equipment to experience the perfect blend of durability, performance, and reliability. With our focus on quality materials and innovative design, we ensure that our wheels stand up to the toughest conditions, driving your operations forward.
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.
Engineering Tools Hub
All tools + dedicated pages (best for sharing and EEAT). Open hub
Load Calculator (dedicated)
Share this page when discussing load rating per caster. Open load tool
Wheel Diameter Calculator
Publish the dedicated page, then replace this link. Find in hub
Failure Diagnosis Tool
Publish the dedicated page, then replace this link. Find in hub
Designed for engineers, manufacturers, and material handling professionals