Product Descriptio

Theory

The excavator gearbox is an important part of the excavator transmission system. Its main function is to transmit the power of the engine to the working device of the excavator through gears to realize operations such as excavation, loading, and steering. The following is the basic principle of the excavator gearbox:

Gear transmission: The excavator gearbox uses gear transmission to realize the transmission of power. A gear is a disc-shaped mechanical part with a series of tooth-shaped protrusions on it. The gearbox usually contains multiple gears, which transmit power through meshing. The larger gear is called the driving gear, and the smaller gear is called the driven gear. The driving gear is powered by the engine and transmits power to the driven gear through the meshing of the gears, thereby driving the working device of the excavator.
Gear ratio: The gears in the gearbox realize the conversion of speed and torque through different sizes of teeth. The gear ratio in the gearbox refers to the ratio of the number of teeth of the driving gear and the driven gear. When the number of teeth of the driven gear is less than that of the driving gear, the transmission ratio is greater than 1, which can achieve torque amplifiion, which is suitable for working conditions requiring large torque output. When the number of teeth of the driven gear is greater than that of the driving gear, the transmission ratio is less than 1, which can achieve speed amplifiion, which is suitable for working conditions requiring high-speed operation.
Gearbox structure: Excavator gearboxes usually consist of multiple gears and shafts. Gears and shafts are supported by bearings to enable smooth rotation. In the gearbox, gears are usually distributed on different parallel shafts, and power transmission is achieved through synchronous meshing. The gearbox may also include accessories such as clutches and brakes to achieve control and protection of the transmission system.

About Xinfeng Machinery (XF) parts:

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3.lfI don't know the part number,what shouldI do?
A:Please send us size and pictures of old products.

4.What is the warranty of the products?
A:The warranty is 6/12 Months based on the specific product.

5.How long is your delivery time?
A:The normal delivery time is 3-5 days for stock sproductsafter getting payment. lf not in stock, we will inform you thetime requlred.

6.Which shipping term you can supply?

A:By sea,air or by express ( DHL,Fedex,TNT,UPSEMS)

7.What is your MOQ?
A:Small order and sample order are acceptable

8.Do you have any After-Sales service?
A:Yes!Our

About Xinfeng Machinery (XF) parts:

Xinfeng Machinery Parts Company was established in 1998. It is a professional team composed of high-quality technical personnel integrating production, maintenance, sales, and service. It is committed to providing customers with high-quality and efficient services. It is headquartered in Guangzhou, China.

We have been engaged in the excavator industry for 25 years. We sell original used parts, rebuilt parts,original new parts, and OEM new parts for many types.We can provide many types for you to choose from. We can provide a quality-trusted full range of hydraulic pumps, travel motors, final drives, main control valves, swing motors, and engines for KOMATSU, , HITACHI, JOHN DEERE, VOLVO, CASE JCB, KOBELCO, NEW HOLLAND, SUMITOMO, KATO, BOB, DOOSAN, and HYUNDAI.

We provide a customer satisfaction guarantee on all our products. We have invested in providing only the highest-quality replacement parts to our customers. Develop a more broad business space together based on long-term, friendly, mutually beneficial, and win-win business relations.