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Gearbox Planetary-Wheel Drives-EP-Model 6 Wheel Drives Planetary Gearbox With Long Flange Distance

EP-Model 6 Wheel Drives Planetary Gearbox With Long Flange Distance

The Model 6 Wheel Drives Planetary Gearbox is a robust, high-performance transmission solution for heavy-duty applications. It offers output torque of 3,400 N·m (normal) and 7,000 N·m (maximum intermittent). The Wheel Drives Planetary Gearbox comes with various gear ratios: 2.81, 3.47, and 4.54 for single reduction and 12.45, 15.91, 20.05, 23.71, 27.50, and 34.31 for double reduction. The Wheel Drives Planetary Gearbox is designed to operate at a maximum input speed of 3,500 rpm. The recommended hydraulic motor pilot/hubs include 13T-16/32 Spline, 15T-16/32 Spline, and others, providing flexibility for various setups. Additionally, the gearbox features a brake torque of 440 N·m and operates at brake work pressures ranging from 22-50 bar. This model is ideal for applications requiring high durability and reliable performance in demanding environments.

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1. Technical Performance & Parameters

output torque (N.m)Ratio (i)Recommend Hydraulic Motor pilot/hubs and input splineMax. input speed (rpm)Brake torque (N.m)Brake work pressure (bar)
normalMax. Intermittent
340070002.81, 3.47, 4.54Single reductionSAE A, B motor pilot/hubs
13T - 16/32 Spline
15T - 16/32 Spline
1" - 6B Spline
14T - 12/24 Spline		350044022-50
12.45, 15.91Double reduction33027-50
20.05, 23.7126022-50
27.50, 34.3116017-50
* Input rotation opposite output rotation.
* Other ratios and other input types can be specially designed.
* If with manual disconnect application, please add a mark "M" at the end of the order number.

Model 6 Wheel Drives Planetary Gearboxes Parameter

Model 3 Series Wheel Drives Planetary Gearbox (Long Flange Distance Version)
OptionsDescriptionOrder NumberUse Option Order Codes to Build Order Number
Model SeriesModel 66W6W
Motor Pilot/HubsSAE AAA
SAE A1A1
SAE BB
SAE B1B1
Motor Input Spline or Shaft Input Options13T - 16/321313
15T - 16/3215
1” - 6B6B
14T - 12/2414
2K Bearing less2K
OMSS Bearing lessOMSS
Ratio Options2.81, 3.47, 4.54
12.45, 15.91,
20.05, 23.71,
27.50, 34.31		02, 03, 04
13, 15
20, 24
26, 30		15
Output Options1/2×1.89
1/2×2.50
9/16×2.06
9/16×2.75
5/8×2.36
NONE		15
16
17
18
8
0
0		15
Brake160NmB4D
260NmB4F
330NmB4HB4H
440NmB4L
Without BrakeWO
DisconnectWith disconnectMM
Without disconnectNONE
Example of complete order code:6WA131515B4HM

Gearbox Planetary-Wheel Drives-EP-Model 6 Wheel Drives Planetary Gearbox With Long Flange Distance-diagramGearbox Planetary-Wheel Drives-EP-Model 6 Wheel Drives Planetary Gearbox With Long Flange Distance-motor

2. Five Key Advantages of Wheel Drives Planetary Gearbox

1. Extended Flange Versatility

The long flange distance design allows for superior mounting flexibility and increased clearance for braking systems and hydraulic connections, making this planetary gear box uniquely suited for specialized wheel drives.

2. High Torque Density

By leveraging an advanced epicyclic gearbox arrangement, our Model 6 delivers exceptional torque output within a minimal volume, outperforming traditional planetary helical gearbox designs in weight-to-power ratios.

3. Precision Engineering

Our planetary servo gearbox technology ensures minimal backlash and smooth rotation, which is vital for the precision steering and movement required in South Korea’s advanced robotics and automated terminal vehicles.

4. Thermal Management

The internal planetary gearbox design incorporates optimized lubrication paths that facilitate rapid heat dissipation, extending the service life of gears and seals during continuous high-load operations.

5. Global Compliance

Certified to international standards, this max planetary gearbox meets the stringent safety and environmental regulations of the EU and South Korea, ensuring smooth customs and operational approval for your projects.

3. How does a planetary gearbox work？

One must look at its ingenious three-element structure. At the heart of the system is the "Sun Gear," which receives the input power. This central gear transmits motion to multiple "Planet Gears" that are held in place by a carrier. These planet gears mesh simultaneously with an outer "Ring Gear." In our EP-Model 6, the planetary gearbox working principle is utilized to distribute the load across multiple gear tooth contact points, which is why a small planetary gearbox can handle significantly higher torque than a standard spur gear set. When the sun gear rotates, it drives the planets to orbit within the stationary ring gear, resulting in a high-torque, low-speed output at the carrier or the wheel hub. This planetary gearbox configuration ensures that the radial and axial forces are balanced, reducing vibration and noise while maximizing power transmission efficiency. For those analyzing a planetary gearbox diagram, it becomes clear that the internal load sharing is the secret to its durability in wheel drive applications where sudden impacts and varying terrain are common.

Gearbox Planetary-Wheel Drives-EP-Model 6 Wheel Drives Planetary Gearbox With Long Flange Distance-draft

 

4. Premium Materials & Construction

The longevity of a Wheel Drives Planetary Gearbox is dictated by its metallurgical integrity. Our EP-Model 6 is constructed using ultra-high-strength 18CrNiMo7-6 alloy steel for the gears, which undergo a rigorous case-hardening and grinding process to achieve a surface hardness of HRC 58-62. This ensures that every planet gearbox component can withstand extreme contact pressures without pitting. The housing is cast from high-grade spheroidal graphite iron (GGG40/50), providing excellent structural rigidity and vibration dampening. This is critical for planetary gearbox manufacturers who target the South Korean heavy equipment market, where machines often operate in harsh coastal or mountainous environments. Furthermore, we use specialized Viton seals to prevent oil leakage and protect the planetary reduction gearbox from dust and moisture ingress.

5. Industrial Application Scenarios

Self-Propelled Sprayers

The long flange distance is perfect for agricultural sprayers, allowing for variable track widths and high ground clearance while maintaining the torque required for muddy fields.

Mining Excavators

In high-impact mining zones, our planetary gearbox provides the rugged durability needed for track drives and swing mechanisms under constant shock loads.

Airport Support Vehicles

For aircraft tugs and cargo loaders, the smooth power delivery of the planetary servo gearbox ensures safe and precise maneuvering of multi-million dollar assets.

6. Global Compliance & Regulatory Standards

Operating a Wheel Drives Planetary Gearbox in the modern global market requires strict adherence to safety and quality protocols. In South Korea, our products comply with the KCs (Korea Certification) safety standards for industrial machinery, ensuring they meet the specific noise and vibration limits required by Korean labor laws. Furthermore, our planetary gearbox design follows the ISO 9001:2015 quality management systems and the EU Machinery Directive 2006/42/EC for safety. We also acknowledge the environmental regulations regarding oil disposal and chemical substances, complying with REACH and RoHS to ensure our planetary gearbox manufacturers' footprint is as sustainable as possible. Whether you are in the United States, Europe, or Asia, our planetary reduction gearbox units are engineered to pass any rigorous site inspection or government safety audit, providing you with peace of mind and operational legality across borders.

7. About Our Engineering Excellence

With decades of experience in power transmission, we have established ourselves as a leader in high-precision gear manufacturing. Our facility is equipped with state-of-the-art CNC grinding machines and automated heat treatment lines, allowing us to produce planetary gearboxes that set the industry standard for reliability. We don't just sell products; we provide comprehensive drive solutions tailored to your unique engineering challenges. From the initial planetary gearbox diagram phase to final load testing, our engineers oversee every detail to ensure that the final planetary inline gearbox meets your exact torque and speed requirements.

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8. Field Notes from Lead Engineers

Project Lead: Mr. Park Sang-hyuk

Location: Incheon, South Korea | Application: Port Cargo Transporters

"We have been testing the EP-Model 6 for over 18 months in our fleet of terminal tractors. The long flange distance was a game-changer for our hydraulic line routing. What impressed us most was the silent operation of the planetary gearbox compared to our previous suppliers. Even under 100% duty cycles in the humid port environment, the thermal stability of the planetary reduction gearbox remained excellent. The KCs compliance made the domestic approval process very straightforward."

Senior Mechanical Engineer: David Henderson

Location: Brisbane, Australia | Application: Mining Equipment Refit

"Transitioning to this 2 stage planetary gearbox for our custom drilling rigs has reduced our maintenance intervals significantly. The gear teeth finish on the planetary helical gearbox components is top-notch, leading to very low vibration levels. Dealing with a manufacturer that provides detailed planetary gearbox diagram files for our CAD integration saved our design team weeks of work. Truly a premium planetary gear box solution."

9. Related Solutions & Compatibility

PTO-SHAFT

Gearbox Planetary-related products-pto shaft

MOTOR

Gearbox Planetary-related products-motor

Frequently Asked Questions

Q1. Is there a small planetary gearbox option that can handle 5000 Nm of torque?
A1. Absolutely. Our max planetary gearbox engineering allows us to pack immense power into a small planetary gearbox footprint. By using 3 stage planetary sets, we can achieve high ratios and high torque in a very tight space.
Q2. Which planetary gearbox manufacturers offer the best long-term reliability for construction equipment?
A2. Reliability stems from precision manufacturing and material selection. As a leading planetary gear box specialist, we use case-hardened alloys and advanced grinding to ensure our planetary inline gearbox units outlast standard industrial alternatives in high-stress environments.
Q3. What is the planetary gearbox working principle for a 2 stage reduction unit?
A3. A 2 stage planetary reduction gearbox stacks two planetary sets. The output of the first carrier becomes the input for the second sun gear. This compounding effect allows for massive planetary gearbox ratio options while maintaining a very compact small planetary gearbox housing.
Q4. Where can I find a planetary gearbox supplier that meets Korean KCs safety standards?
A4. We specialize in the South Korean market, ensuring every planetary gear box we deliver meets local safety and regulatory requirements. We provide all necessary documentation for seamless integration into Korean-built heavy machinery.
Q5. How does a planetary gearbox work differently than a traditional helical gearbox?
A5. Unlike a parallel shaft planetary helical gearbox, a planet gearbox distributes the load across multiple gears simultaneously. This increases torque capacity significantly for the same physical size, which is why it is preferred for wheel drive applications.
Q6. What materials are used to ensure a planetary servo gearbox maintains high precision?
A6. High-precision planetary gearbox design utilizes vacuum-degassed steel and precision-ground teeth. This minimizes backlash and ensures the planetary gear box can handle rapid start-stop cycles in automated systems without wear.
Q7. Can you provide a detailed planetary gearbox diagram for our vehicle chassis design team?
A7. Yes, we provide 2D drawings and 3D STEP files for every planetary gearbox model. This facilitates easy integration of the planetary reduction gearbox into your CAD models, ensuring perfect alignment of the long flange distance.
Q8. What are the advantages of a planetary right angle gearbox in mobile hydraulics?
A8. A planetary right angle gearbox combines a bevel stage with a planetary stage. This is ideal when space is limited horizontally, allowing the motor to be mounted perpendicular to the wheel drive axle while maintaining high planetary gear box torque.
Q9. How do you handle thermal heat in a high-torque planetary gearbox ratio application?
A9. Our planetary gearbox manufacturers' process includes optimizing the internal oil flow. The planetary reduction gearbox features integrated cooling fins and high-temperature seals to ensure reliable operation even at max RPM and load.

Editor: PXY

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