Up to 350 lbs
Up to 6,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
High-capacity loads
Shock absorbing
Corrosion resistant
Outdoor / rough terrain
OEM replacements
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.
PRODUCT CODE: 370MR06501R
The Kingpinless 6"x3" Rubber-on-Iron Wheel Rigid Caster is built to handle tough industrial environments. This caster boasts a weight capacity of 750 lbs, making it the perfect choice for applications demanding reliable and durable mobility solutions.
Got questions about casters? Our Caster Experts are on hand weekdays from 8 am - 5 pm to provide expert advice for your project needs.
Got questions about these casters? Our team is here to help weekdays 8 am - 5 pm. Get expert advice to find the perfect caster for your needs.
Transparent pricing
All pricing and quantity discounts are applied automatically. No promo codes required and no post-checkout price changes.
Upfront shipping costs
Shipping is calculated by order size and weight. Final shipping costs are shown before payment so there are no surprises.
Business-friendly ordering
We support bulk orders, repeat purchases, and fast quotes for larger or custom requirements.
Real support from product specialists
Need help confirming fit, compatibility, or application? Our team works directly with engineers, maintenance teams, and buyers every day.
Trusted by industrial and commercial customers
CasterHQ supplies casters and wheels for manufacturing, material handling, retail, and distribution environments nationwide.
When will my order ship?
In-stock items typically ship same or next business day. Weekend orders ship Monday or Tuesday unless stated otherwise.
Will shipping cost more at checkout?
Shipping is not free on most orders. Your final shipping cost is shown before payment.
Central & Southern U.S.: typically 1–2 business days
East & West Coasts: typically 2–3 business days
Remote areas may take longer.
Some custom products (select Made in USA casters, keyway wheels, drive wheels) are built after purchase and ship on a longer lead time. When applicable, the ship-time estimate is shown on the product page.
Contact us before ordering and we’ll confirm total landed cost upfront. Contact us.
These industrial casters are the perfect solution for heavy-duty applications in manufacturing plants, warehouses, and other industrial settings. They provide exceptional mobility and stability, making it easy to move even the most challenging equipment.
Got questions about selecting the right caster for your needs? Our Caster Experts are here weekdays 8 am - 5 pm to provide expert advice for your project.
Find the Perfect Casters for Your Industrial Needs Today!
$145.00
| Wheel Diameter | 6" |
| Wheel Tread Width | 3" |
| Wheel Capacity | 750 lbs |
| Wheel Material | Rubber |
| Frame Material | Zinc Plated Steel |
| Bolt Hole Pattern | 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4" |
| Mount Style | Plate |
| Plate Size | 4-1/2" x 6-1/4" |
| Rig Type | Rigid |
| Brake Type | No Brake |
Designed for engineers, manufacturers, and material handling professionals
