Komatsu PC300-7 207-27-71140 708-8H-00320 Excavator Travel Gearbox Hydraulic Drive Unit

Komatsu PC300-7 207-27-71140 708-8H-00320 Excavator Travel Gearbox Hydraulic Drive Unit

The travel gearbox is a critical component in an excavator’s undercarriage system, responsible for transmitting power from the hydraulic motor to the tracks or wheels, enabling precise movement and heavy-duty operation. Its reliability directly impacts the machine’s productivity in mining, construction, and earthmoving applications.

List of spare parts

High-quality excavator travel gearboxes use high-strength alloy steel forged gears. After carburizing and quenching treatment, the surface hardness can reach HRC58-62, which has high wear resistance and impact resistance and can withstand long-term heavy-load operation. The internal lubricating oil circuit adopts a forced lubrication design to ensure that gears and bearings are fully lubricated during high-speed operation, reducing friction loss. At the same time, the gearbox shell is made of die-cast aluminum alloy or cast iron, which has both light weight and deformation resistance, adapting to the harsh outdoor construction environment. During maintenance, it is necessary to regularly check the oil level and oil quality to avoid gear sintering caused by oil shortage or oil contamination. The seals need to be replaced every 2000 hours to prevent leakage failures.

Company Information

Our Services

Delivery

• 1.Outside packing: standard export carton packing;
• 2.According to orders, pack the spare parts one by one in a small plastic bag;
• 3.Put them into small carton boxes one by one;
• 4.Put the packed small carton boxes into bigger carton boxes one by one;
• 5.Put the bigger carton boxes into wooden boxes if necessary especially for
• the shipments by sea.

Exhibition

Processing&Testing

Our Team

Hot Production

GUANGZHOU BELPARTS ENGINEERING MACHINERY LIMITED founded in September 2013, loed in the engineering machinery market in Guangzhou, China. At present , we have one shop, one warehouse and one office as well as a professional team for purchasing, selling, packing, shipping and after-sale service.

Our main products are Excavator Hydraulic spare parts, Hydraulic pump, Swing motor, Travel motor, Final drive, Swing gearbox, Travel gearbox, Control valve,Monitor,Controller, Hydraulic cylinder and other hydraulic items with genuine and aftermarket quality. Until now, our products enjoy high reputation all over the world and have been exported to more than 150 countries and regions, spreading all over the Middle East, Southeast Asia, Africa, North America, South America, Europe and Oceania with its own brand "Belparts" are widely acclaimed by foreign customers.

In February 2023, Belparts Yunnan Tourism Team Building

In April 2024, Belparts participated in the Brazil Construction Machinery Exhibition and visited local clients in Brazil.

In April 2024, Belparts participated in the French Construction Machinery Exhibition and visited clients in France and Spain

In May 2024, Belparts Travel Thailand