Excavator Travel Motor Gearbox E325C Final Drive Gearbox OEM
Price:
Negotiable
MOQ:
1 Pc
Delivery Time:
7-35days
Product Description
Excavator Final Drive Travel Gearbox Assembly E325C Excavator Machinery Parts Travel Reducer
Widely recognized as the swing gearbox in construction machinery sectors, the excavator swing reducer serves as an indispensable transmission unit linking the slewing drive motor and large slewing gear ring. It performs speed reduction and torque boosting to achieve seamless all‑round rotation of the upper superstructure.
Key Component Composition
Sun Gear: Coupled with the slewing motor’s spline teeth to receive high‑speed power input.
Planet Gears: Three to four gears per stage revolve circumferentially around the sun gear while self‑rotating to deliver torque.
Ring Gear: Fixed to the reducer housing and engages with planetary gear assemblies.
Planet Carrier: Provides power output to actuate the bottom small driving gear.
Brake: Built‑in wet multi‑disc brake system with spring‑applied locking and hydraulic release to prevent reverse movement.
Housing and Bearings: Cast or forged high‑strength steel housing supported by heavy‑duty bearings, dust‑proof and anti‑leakage.
Planet Gears: Three to four gears per stage revolve circumferentially around the sun gear while self‑rotating to deliver torque.
Ring Gear: Fixed to the reducer housing and engages with planetary gear assemblies.
Planet Carrier: Provides power output to actuate the bottom small driving gear.
Brake: Built‑in wet multi‑disc brake system with spring‑applied locking and hydraulic release to prevent reverse movement.
Housing and Bearings: Cast or forged high‑strength steel housing supported by heavy‑duty bearings, dust‑proof and anti‑leakage.
Low‑torque high‑speed power from the hydraulic motor is transmitted via the sun gear, primary and secondary planetary gear sets to the output planet carrier. The pinion rotates slowly with high torque, meshing with the slewing bearing’s inner ring to drive upper‑structure slewing.
Common Failures and Root Cause Analysis
- Abnormal acoustic noise and unstable performance: Gear wear/pitting, bearing damage, insufficient polluted lubricant, unsuitable gear backlash.
- Oil permeation and seepage malfunctions: Worn sealing gaskets, housing structural fissures, excessive lubricant filling, blocked breather ports.
- Sluggish or weak slewing motion: Degraded gear and bearing assemblies, incomplete brake disengagement, hydraulic motor bypass leakage, incompatible reduction ratio.
- Severe thermal overheating: Inadequate lubricant volume, degraded oil quality, overloaded working, brake drag friction, poor heat radiation efficiency.
- Gear slipping and broken gear teeth: Shock‑induced loads, foreign particle entry, fatigue aging wear, shaft misalignment errors in assembly.
| Machinery Test Report | Provided | Warranty | 3 Months |
| Video outgoing-inspection | Provided | Brand Name | OEM |
| Place of Origin | China | Part Name | Travel Reduction Assembly |
| Model | E325C | Keyword | Excavator Travel Reduction Gearbox |
| MOQ | 1 Piece | Quality | Tested Great Performance |
| Application | Excavator | Delivery Time | 7-35 Days |
| Service | Professsional Service | Condition | Brand New |
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Company
Lanzhou Fudong Guangqi Trading Co., Ltd
Location
No. 7 West South Binhe Road, Xigu District, Lanzhou City, Gansu Province, China
Contact Person
Liang