Eaton releases more details on Endurant XD


Transmission-maker hails combination of capability, efficiency, and maintenance advances

Eaton releases more details on Endurant XD
Eaton has released more details on its Endurant XD

 

Eaton Cummins Automated Transmission Technologies (ECATT) has released specifications for its new Endurant XD series and announced it will include Endurant XD and Endurant XD Pro models.

The Endurant XD series is a purpose-built, high-performance automated transmissions designed for on-highway applications with high gross-combined weight ratings, such as double and triple trailer trucks, and severe-duty on/off-highway applications like dump and logging trucks.

Series production will begin in the third calendar quarter but truck manufacturers are expected to announce its availability later.

The Endurant XD series features a twin-countershaft design with helical gearing and large bearings optimised for higher engine torque.

Eaton said a new 18D ratio set with a 20.5:1 overall ratio with small, even steps ensures smooth shifts and excellent performance in all driving conditions.

The design is contained with internal wiring and sensors to minimize exposure and corrosion for improved reliability. Overall, its design is 102kg lighter than comparable UltraShift PLUS models.

A new, input shaft-driven power takeoff (PTO) system delivers power to an 8-bolt bottom mount and 4-bolt rear mount that can operate independently of the transmission gear.

The 4-bolt rear mount features an external pressurised lube port and a large center distance, making it an ideal alternative when there’s no room for a bottom mount PTO. Total combined PTO capacity is 160hp or 610 lb-ft of torque. 

Fuel and maintenance are two of the largest expenses for a trucking operation. To mitigate maintenance costs, Eaton said it had designed the Endurant XD series to be the most efficient, heavy-haul transmission we’ve ever produced.

The design features a precision lubrication system for up to two per cent better fuel economy than UltraShift PLUS. Additionally, smart features such as new internal oil temperature and fluid pressure sensors help protect the transmission.

Eaton says trucks operating below 49,900kg don’t require a transmission cooler, reducing the risk of cooler leaks. Maintenance costs are minimised thanks to long service intervals – up to 800,000km depending on vehicle application – and help keep the truck on the road and making money.


Read how ATN's Steve Brooks foreshadowed Endurant, here 


New for the Endurant XD series are performance goals, which combine transmission shift points and clutch calibrations with unique software. This allows operators to easily tailor transmission performance to the demands of the job.

Endurant XD is rated for engines with a maximum torque rating of 1,650 to 1,850 lb.-ft. and is designed for on-highway applications up to 75-tonnes Gross Combined Weight Rating (GCWR).

"Endurant XD delivers a pleasant driving experience with improved skip shift ability and smoother shifts compared to previous 13- and 18-speed automated transmissions," Ken Rocker, ECATT's Endurant XD series product manager, said.

Eaton says the Endurant XD Pro adds even more capability and unique features for severe service applications.

It has an unlimited gross combined weight (GCW) rating, best in class PTO functionality, and the longest maintenance intervals in its class. For long reversing distances and deep axle ratios, the Endurant XD Pro can be configured with up to six reverse gears. Endurant XD Pro can be paired with the most powerful engines, including the Cummins X15 series, with torque ratings from 1,650 to 2,050 lb.-ft.

Endurant XD Pro utilises Eaton's Extreme Duty clutches, which feature robust components designed for increased durability, improved noise and vibration, in addition to higher thermal capacity for enhanced low-speed manoeuvrability.

Unique software features to the Endurant XD Pro include Rock Free, which helps avoid getting stuck in sand, mud, or snow by using the accelerator to rock the vehicle free, and the Off-highway Performance Goal, which is an optimised calibration for operation on natural rolling terrain and soft soil.

"Endurant XD Pro has the right mix of hardware and intelligence to give drivers more confidence in the most challenging applications such as construction, heavy haul, towing & recovery, and logging," Rocker said.

"No other automated transmission can match its combination of capability, efficiency, and maintenance requirements."

 

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