1. Product Overview: AGV/AMR Wheel Drive Planetary Motors
The logistics and warehousing industries are undergoing a massive transformation, driven by Automated Guided Vehicles (AGVs) and Autonomous Mobile Robots (AMRs). Ever Power, a premier drive manufacturer located in the Netherlands, engineers integrated wheel drive planetary motors specifically tailored for these mobile platforms. Our drive systems combine the motor, planetary reduction gears, and the wheel hub into one seamless, ultra-compact unit.
Applicable Industries: E-commerce fulfillment centers, automotive assembly lines, hospital supply transport, and smart factory intra-logistics.
Core Advantages: Our wheel drive planetary motors offer exceptional space utilization, high load-bearing capacity directly on the drive axis, and unparalleled energy efficiency to maximize battery life per charge.
2. Technical Parameters
| Specification | Value Range | Unit / Note |
|---|---|---|
| Wheel Diameter | 150 to 400 | mm (Polyurethane/Rubber) |
| Max Radial Load (Per Wheel) | 500 to 3,500 | kg |
| Nominal Output Torque | 30 to 800 | Nm |
| Reduction Ratio | 15:1 to 60:1 | Optimized for walking speed |
| Ingress Protection | IP65 | Dust and washdown resistant |
3. Working Principle & Structure
In an AGV wheel drive, the planetary gearbox is mounted entirely inside the wheel hub. The servo or BLDC motor drives the central sun gear. The planet gears orbit around it, turning the outer ring gear. In this unique configuration, the ring gear is directly attached to the wheel rim itself, while the central carrier remains stationary on the robot’s chassis. This means the wheel housing is the rotating output, saving incredible amounts of space. To understand more about varied epicyclic structures, visit our partner resource on planetary gearboxes.
4. 5 Core Advantages
Space Optimization
By placing the gearbox inside the wheel, the robot chassis can be built flatter and lower to the ground, freeing up space for larger battery packs.
Direct Load Bearing
Integrated high-capacity angular contact bearings support the weight of the vehicle and payload directly, eliminating the need for separate chassis axles.
Extended Battery Life
The 95% transmission efficiency minimizes electrical draw, allowing the AMR to operate for longer shifts between charging station visits.
Smooth Navigation
Low backlash ensures the wheels respond instantly to steering commands, allowing for precise zero-radius turns and exact docking maneuvers.
High Traction Tread
Wheels are coated with premium polyurethane (NDI) which resists wear, providing excellent grip on smooth warehouse epoxy floors.
5. Structure & Material Technology
The structural core of the wheel hub is forged from high-strength aluminum alloy, reducing the unsprung weight of the drive while dissipating motor heat effectively. Internal gears are machined from 20CrMnTi steel, carburized and hardened to HRC 60 to withstand sudden shocks from uneven floor joints or debris. The tires are molded using high-durability Vulkollan or specialized polyurethane, vulcanized directly onto the rotating ring gear housing.
6. Typical Application Scenarios
Heavy Payload AMRs: Moving 2,000 kg pallets requires massive starting torque to overcome static friction. The planetary gear reduction handles this effortlessly without overloading the electrical system.
Hospital Delivery Robots: Requiring near-silent operation in corridors, the precision-ground helical planetary gears ensure whisper-quiet navigation while transporting meals and linens.
Automated Forklifts: Used as the primary traction drive, providing the dynamic braking and acceleration needed for safe operation around human workers.
7. Selection Guide
To spec the correct wheel drive, you must confirm:
- Total Vehicle Weight: Calculate the chassis weight plus the maximum payload to ensure the radial load bearings can handle the force.
- Maximum Speed: Usually defined in meters per second (m/s). This dictates the required reduction ratio based on your motor’s maximum RPM.
- Floor Surface: Select rubber for uneven/outdoor transit or high-shore polyurethane for smooth indoor concrete.
- Encoder Requirements: Ensure the drive supports the feedback resolution required by your navigation controller.
8. Brand Comparison & Upgrades
Ever Power offers highly competitive alternatives to specialized robotics brands, delivering superior bearing architecture at a reduced unit cost.
| Other Brand / Series | Ever Power Equivalent | Advantage |
|---|---|---|
| Dunkermotoren – NG Series | EP-AGV Wheel Series | Higher radial load limit; more competitive bulk pricing. |
| Kinetek – Drive Wheels | EP-Mobility Hub | Identical mounting plates; thicker polyurethane tread layer. |
9. Quality Certification & Service Promises
As a leading Netherlands manufacturer, Ever Power’s facilities operate under strict ISO 9001:2015 certification. Our AGV planetary drives are CE approved and undergo 100% dynamic load testing before shipment. We offer a comprehensive 12-month global warranty and provide fast-track replacement parts to ensure your robotic fleets never experience extended downtime.
10. Engineer Field Notes: Global Case Studies
🇩🇪 Germany (Automotive Supply): “We needed wheel drives that could handle a 3,000 kg load while staying under 200mm in height. Ever Power’s integrated planetary wheels provided the exact power-to-size ratio required for our new chassis.”
🇺🇸 USA (E-commerce Warehouse): “Replacing our old units with Ever Power extended our robots’ battery cycle by almost 15%. The gear efficiency improvement was noticeable immediately.”
🇰🇷 South Korea (Electronics Assembly): “The low vibration of these epicyclic drives prevents our fragile components from being damaged during transit. Highly recommended.”
Scale Your Fleet with Ever Power
Ensure maximum uptime and mobility for your robotic systems.
11. Frequently Asked Questions (FAQ)
Q: Can the polyurethane wheels be replaced when worn out?
A: Yes. The outer wheel tread is designed as a slip-on sleeve or a bolted rim. You can easily unbolt the worn tread and slide a new one over the gearbox housing without opening the sealed gear chamber.
Q: Do you supply the servo drives/controllers as well?
A: We specialize in the planetary gearbox and integrated motor unit. However, our motors are compatible with all major third-party servo controllers and PLC navigation systems.
