PC56-7 Gear Sun Travel Motor Sun Gear Description
The YNF17836 PC56-7 Gear Sun is a key planetary gear component used in compatible PC56-7 excavator travel motor reduction systems. As the central gear inside the planetary assembly, the sun gear transfers torque from the input shaft to the surrounding planetary gears, ensuring efficient power transmission and stable travel performance.
Manufactured from high-strength alloy steel with precision gear machining and heat treatment, this sun gear provides excellent tooth strength, dimensional accuracy, and resistance against wear caused by heavy-duty operation. Its precise design helps maintain smooth gear engagement and reliable operation under continuous working conditions.
The PC56-7 gear sun is suitable for final drive repair, travel motor rebuilding, and excavator maintenance applications. It helps replace worn, damaged, or failed internal gear components and supports the restoration of stable travel system performance.
PC56-7 Gear Sun Travel Motor Sun Gear Technical Data Sheet
| Parameter |
Specification |
| YNF Part Number |
YNF17836 |
| Machine Model |
PC56-7 |
| Product Name |
Gear Sun |
| Alternative Name |
Sun Gear / Planetary Gear / Travel Motor Gear |
| Product Type |
Travel Reduction Gearbox Component |
| Function |
Torque Transmission |
| Installation Position |
Final Drive / Travel Motor Assembly |
| Material |
High-Strength Alloy Steel |
| Manufacturing Process |
Precision Gear Machining |
| Application |
Excavator Travel System |
| Quality Type |
Aftermarket Replacement |
| Condition |
New |
| Brand |
YNF |
| Origin |
China |
| MOQ |
1 Piece |
| Shipping Method |
Air, Sea, Express |
| Payment Terms |
T/T, PayPal, Western Union |
PC56-7 Gear Sun Travel Motor Applications
| Application |
Description |
| Komatsu PC56-7 Excavator |
Travel motor sun gear replacement |
| Final Drive Assembly |
Transfers torque inside planetary system |
| Travel Reduction Gearbox |
Supports smooth power transmission |
| Excavator Repair |
Replaces worn internal gear components |
| Hydraulic Motor Overhaul |
Used during final drive rebuilding |
| Construction Machinery |
Suitable for heavy-duty travel operation |
PC56-7 Gear Sun Detail Display
The PC56-7 Gear Sun is a planetary reduction gear component that transfers torque inside the excavator travel motor system.
A worn sun gear may cause abnormal noise, weak travel force, or unstable power transmission. Replacing the gear helps restore reliable final drive performance.
FAQ
Q: What excavator is this gear sun used for?
A: It is designed for compatible PC56-7 travel motor reduction systems.
Q: What is the function of a gear sun?
A: It transfers torque from the input shaft to planetary gears inside the reduction assembly.
Q: Is this a new replacement part?
A: Yes. It is a new aftermarket replacement gear sun.
