E320D E319D E323D Travel Reduction Gearbox 353-0611 353-0615 Aftermarket excavator parts

The excavator travel gearbox (also known as the walking gearbox or track drive gearbox) is a critical component in crawler excavators, responsible for transferring power from the engine to the tracks, enabling controlled movement. Designed to withstand heavy loads and harsh environments, it ensures efficient mobility across diverse terrains. This guide explores its working principles, construction, functions, applications, and maintenance practices.

Product Description

DX300	404-00098C	TRAVEL MOTOR ASSY DX300	395	60*60*71
DX340	K1003131	TRAVEL MOTOR ASSY DX340	395	60*60*71
ZX200-3	9233692	TRAVEL MOTOR ASSY ZX200-3	284	60*60*70
ZX240-3	9243839	TRAVEL MOTOR ASSY ZX240-3	266	60*60*70
R320-7 R305-7	31N8-40070	TRAVEL GEAR BOX R320-7	339	59*59*68
R320-7 R305-7	31N8-40070	TRAVEL MOTOR ASSY R320-7	416	60*60*70
EC210B	14528733	TRAVEL GEAR BOX EC210B	242	52*52*58
E320D2	E320D	Travel gearbox	250	60*60*54

Working Principle

The travel gearbox operates as a speed reducer and torque amplifier:

1. Power Input: Receives high-speed, low-torque rotational energy from the hydraulic motor (or engine via a driveshaft in mechanical systems).

2. Gear Reduction: Multi-stage gears (planetary/spur) reduce speed while increasing torque.

3. Output to Sprocket: The final drive transfers torque to the sprocket, which engages with the track links, propelling the excavator.

4. Direction Control: Integrated clutches or hydraulic valves enable forward/reverse movement.

Hydraulic excavators commonly use hydraulic travel motors coupled with gearboxes, while older models may employ mechanical transmissions.

FAQ

1 . If I only know the excavator model, but can not offer parts No., what should I do ?
If possible, you can send us pictures of old products, nameplate or the size for reference.

2 . What is the warranty of the parts after I purchased?
The warranty is 6/12 Months based on the item details.The genuine parts we don't have the warranty of it,but just can make sure it is 100% genuine.

3 . How can I pay the order?
You can finish the payment by T/T,Western Union,Paypal etc.

4 . When will get the items after I place order?
Once we received your payment , we will arrange the shipment within 24 hours ; if don't have stock , we will tell you before payment .

5 . How can I do if there is something wrong with the items?
First of all , I have confidence in the quality of our products ,if you really found something wrong ,please provide pictures for us and we will check. After it is confirmed, please return to us , we will offer the correct item.

6 . What is your main products ?
Our pain product is final drive , hydraulic pump , swing gearbox , travel gearbox , swing motor , hydraulic parts . If you need any parts for crawler excavator , you can ask us too . We will try our best to meet your requirement.

GZ Yuexiang Engineering Machinery Co., Ltd.

GZ Yuexiang Engineering Machinery Co., Ltd, is a foreign trade company integrating development, sales, procurement, warehousing, transportation and service. Founded in September 2013, we have more than twelve years of experience in machinery trade.

Our main products are Excavator Hydraulic Spare Parts, Hydraulic Main Pump, Swing Motor, Travel Motor, Final Drive Ass'y, Swing Device Ass'y, Swing Gearbox, Travel Gearbox, Gears, Regulators, Relief Valve, Fan Motor and other hydraulic items with genuine and aftermarket quality. Until now, our products have been exported to more than 198 countries and regions, spreading all over the Middle East, Southeast Asia, Africa, North America, South America, Europe and Oceania with our own brand "Belparts", which is highly praised by foreign customers and enjoys a high reputation.

In the future, to practice our company culture “DO BETTER FOR TOMORROW ”, we will strive to learn more professional knowledge about machinery parts and increase our procurement and sales experience to provide customers with better products and services! What’s more, we will devote to develop a more broad business space together base on long-term, friendly, mutually beneficial and win-win business relations.