Carbon Steel Mecanum Wheels with Double Bearings

The AstraRoll Technical Advantage: Forged for Heavy Tonnage
To achieve true omni-directional movement (moving sideways, diagonally, and rotating on the spot), Mecanum wheels rely entirely on the smooth rotation of their 45-degree angled peripheral rollers. We engineered this series to conquer friction and structural weakness:

Indestructible Carbon Steel Hub: Aluminum hubs are great for lightweight service robots, but they deform under ton-level payloads. Our heavy-gauge carbon steel hubs are laser-cut and precision-assembled, providing absolute structural rigidity. This zero-deflection design protects your drive motors from uneven torque forces.

Dual Bearing Roller System: A roller that binds or sticks will cause the AGV to drift off-course. AstraRoll equips every single PU roller with two precision-sealed ball bearings (one at each end of the roller axle). This guarantees fluid, low-resistance rotation, significantly extending the battery life of your AGV and preventing roller uneven wear.

Continuous-Profile PU Rollers: The polyurethane rollers are cast to a highly specific parabolic curve. This ensures a seamless, bump-free transition as the wheel's contact point rolls from one roller to the next, protecting sensitive onboard sensors and payloads from vibration.

Industrial Anti-Corrosion Finish: The entire carbon steel hub undergoes an industrial-grade electro-coating or heavy zinc plating process, ensuring long-term resistance to rust in humid warehouse environments.

Key Specifications & Technical Attributes

Available Diameters: 6" (152mm) to 12" (304mm).
Roller Material: Premium High-Durometer Polyurethane (PU).
Hub Material: High-Strength Carbon Steel (Black Electro-coated or Zinc Plated).
Roller Bearings: Double sealed rolling ball bearings per roller.
Load Rating (8" Model): Up to 250kg (550 lbs) per wheel (1,000kg per 4-wheel AGV).
Mounting Interface: Custom CNC-machined bore (Keyway, Spline, or Custom Flange) to match your drive motors.

Why Choose AstraRoll? (Your Heavy Robotics OEM Partner)

1. Precision Motor Matching
A heavy-duty wheel is useless if it slips on the motor shaft. As a factory-direct manufacturer, we don't just sell generic hubs. We will CNC machine the wheel's central bore, flange, and keyway to perfectly mate with your specific planetary gearboxes or high-torque servo motors, ensuring zero mechanical backlash.

2. Matched L/R Sets with Scalable Production
Mecanum drive systems require a specific arrangement of "Left" and "Right" handed wheels (typically forming an "X" or "O" pattern from the top down). We supply perfectly matched sets with consistent lot-to-lot quality. Whether you need 4 wheels for a prototype or 4,000 wheels for a fleet rollout, AstraRoll scales rapidly to meet your timeline.

Frequently Asked Questions (FAQs)

Q: How do I arrange Mecanum wheels on my AGV chassis?
A: A standard Mecanum AGV uses four wheels: two "Left" (L) wheels and two "Right" (R) wheels. When viewed from the top of the robot, the rollers that touch the ground should form an "X" pattern pointing towards the center of the chassis. This specific arrangement, combined with independent motor control, allows for omni-directional movement.

Q: Why use Mecanum wheels instead of standard Omni wheels?
A: Mecanum wheels are mounted just like regular wheels (parallel to the chassis), which makes designing the robot frame and suspension much simpler and more space-efficient (like a standard car). Omni wheels, to achieve the same holonomic movement, often require a circular or triangular chassis design.

Q: Does the Carbon Steel hub make the wheel too heavy for my motors?
A: While carbon steel is heavier than aluminum, it is essential for high payload capacities. The added inertia is easily handled by industrial servo or stepper motors. More importantly, the Dual Bearings in the rollers drastically reduce lateral friction, which actually saves motor torque during sideways movement.

Q: Can these wheels handle uneven factory floors?
A: Mecanum wheels perform best on hard, relatively flat surfaces (smooth concrete, epoxy). Because the driving force relies on the specific 45-degree angle of the rollers, large bumps, deep cracks, or soft terrain (like mud) will disrupt the omni-directional kinematics and reduce traction.

Q1. Are you a trader or direct factory?

We are a direct manufacturing factory with over 20 years of expertise in high-end industrial rollers, casters and material handling solutions. Our facility operates with ISO-certified quality management systems, allowing us to maintain full control over production cycles and quality standards. Throughout two decades of growth, we have established deep, long-term strategic partnerships with several listed companies and global automation leaders, proving our reliability as a high-tier industrial supplier.

Q2. What are your main products?

AstraRoll specializes in the engineering and production of three core product lines: Industrial Rollers, Heavy-Duty Wheels, and Precision Casters. We do not just sell components; we provide integrated movement and transport solutions. Our products are widely utilized across high-demand sectors, including: New Energy, Lithium Battery, Mining, Heavy Industry, Medical Institutional, Agriculture and Logistics.

Q3. What about delivery time?

We deeply understand that project timelines are critical.
Standard Products: Usually dispatched within 7–15 working days if the components are in stock.
Customized/OEM Orders: Depending on the complexity and volume, the lead time typically ranges from 20–35 days. This includes time for technical drawing confirmation, specialized tooling, and rigorous pre-shipment testing.
Shipping Methods: We offer flexible global logistics solutions, including FOB and CIF terms. We ship via Sea Freight (for bulk industrial orders), Air Freight (for urgent project needs), and International Express (DHL/FedEx/TNT) for smaller components or samples.

Q4. How can I get a quote for customized products?

Since a significant portion of our business involves specialized engineering, pricing is tailored to your specific technical requirements. To provide an accurate quote, please provide the following details: Technical Drawings or Sketches, Application Environment, Quantity, Special Requests. Our engineering team typically reviews and responds to custom inquiries with a formal quotation within 24–48 hours.

Q5. What is your payment?

TT / Paypal / Western Union / LC / Credit Card etc. are all available to us.