Electric Car Rear Axle

When it comes to designing reliable and efficient electric buses, the electric car rear axle plays a decisive role. Our EA1400K is a 9T electric portal axle built specifically for 8–9 meter city buses, integrating permanent magnet synchronous motors (PMSM) with advanced transmission and braking systems. This product is designed to deliver not only power but also stability, ensuring urban public transport fleets operate with safety and efficiency. With a rated axle load of 9,000 kg and a system output torque of 14,040 N·m, it provides the strength required for modern city transit vehicles.

TRION EA1400K electric axle is not just about raw specifications; it is about long-term operational benefits.

Extended mileage reliability: The electronic differential system (EDS) has been tested for more than 100,000 km of tire change mileage, ensuring minimal downtime for operators.

 

Energy recovery: This axle design supports effective regenerative braking, enhancing energy efficiency and increasing driving range.

Waterproof durability: With IP68 protection, this system resists dust and water, extending service life even in challenging environments.

 

For customers who prioritize cost efficiency, this electric car rear axle offers lower maintenance and improved overall lifecycle value.

One of the most important aspects of our electric car rear axle is how it enhances both driving comfort and operational performance. The EA1400K is engineered with a maximum motor speed of 9,500 r/min and peak motor power of 2×120 kW, making it well-suited for demanding routes.

Low-floor design: This axle allows for a wide interior channel of up to 755 mm, improving accessibility and passenger safety.

 

Dual-tire stability: With dual-tire configuration, buses gain better balance and road grip.

Durable braking system: Equipped with an air disc brake, the system ensures consistent braking force even in intensive city operations.

 

This electric car rear axle supports both engineering standards and passenger comfort.

TRION EA1400K is designed primarily for 8–9 meter city buses. In this setting, it provides the required torque for frequent starts and stops, maintains stability during passenger loading, and reduces safety risks through its wide-channel low-floor layout. Public transport operators benefit from smoother journeys, reduced accident risks, and longer service cycles. This makes the electric car rear axle an ideal solution for city bus fleets that require both dependability and efficiency.

Our electric car rear axle is suited for:

 

Each electric car rear axle is produced in specialized facilities equipped with automated assembly and testing systems.

From raw material processing to final quality checks, strict procedures guarantee consistent performance. The permanent magnet synchronous motors are calibrated to deliver reliable torque, while the axle housing is engineered for both strength and weight reduction. This production approach ensures that every delivered unit maintains the same standard of quality.

Q1: What is the rated load capacity of the EA1400K electric car rear axle?
The rated axle load is 9,000 kg, making it suitable for heavy-duty urban buses.

Q2: How does the dual-tire design improve performance?
The dual-tire layout provides better balance, road grip, and stability, especially on uneven city roads.

Q3: What braking system is used in this electric car rear axle?
It is equipped with a reliable air disc brake system, ensuring safe and consistent braking.

Q4: How long can the electronic differential system last?
The EDS has been tested for over 100,000 km of tire change mileage, proving its long-term reliability.

Q5: Can the axle support energy regeneration?
Yes, the EA1400K is designed to optimize regenerative braking, helping buses recover energy and extend driving range.

Q6: What vehicle types can use the EA1400K electric car rear axle?
It is primarily suited for 8–9 meter electric city buses that require reliable low-floor access and high stability.