E320D2 Excavator Machinery Parts OEM Final Drive Gearbox Travel Motor Reduction Gearbox
Price:
Negotiable
MOQ:
1 Pc
Delivery Time:
7-35days
Product Description
Final Drive Reduction Gearbox E320D2 Excavator Machinery Parts Travel Motor Reduction Gearbox
The excavator swing reducer, known as the swing gearbox in construction machinery, is a vital transmission unit joining the slewing motor to the large slewing gear ring. Its key functions are decelerating rotation and amplifying torque, enabling steady full‑circle slewing of the upper superstructure assembly.
Main Component Framework
Sun Gear: Mated with the slewing motor spline section for high‑speed power reception.
Planet Gears: Each stage includes 3 to 4 gears that revolve around and self‑rotate on the sun gear for torque delivery.
Ring Gear: Permanently secured to the housing and engages with planetary gear sets.
Planet Carrier: Transmits output power to drive the lower small driving gear wheel.
Brake: Integrated wet multi‑plate braking mechanism, spring‑locked and hydraulically released to prevent reverse slewing motion.
Housing and Bearings: Heavy‑duty high‑strength steel housing supported by high‑capacity bearings, dust‑proof and oil‑leakage‑resistant.
Planet Gears: Each stage includes 3 to 4 gears that revolve around and self‑rotate on the sun gear for torque delivery.
Ring Gear: Permanently secured to the housing and engages with planetary gear sets.
Planet Carrier: Transmits output power to drive the lower small driving gear wheel.
Brake: Integrated wet multi‑plate braking mechanism, spring‑locked and hydraulically released to prevent reverse slewing motion.
Housing and Bearings: Heavy‑duty high‑strength steel housing supported by high‑capacity bearings, dust‑proof and oil‑leakage‑resistant.
Power featuring high rotational speed and low torque from the hydraulic motor flows through the sun gear, first‑stage and second‑stage planetary groups to the output carrier. The pinion gear spins at low speed with high torque, meshing with the slewing bearing inner ring to drive upper‑structure rotation.
Regular Operational Issues and Root Causes
- Unusual sound and unstable operation status: Gear wear and pitting corrosion, bearing breakdown, insufficient dirty lubricating oil, unsuitable gear meshing backlash.
- Oil permeation and leakage malfunctions: Degraded sealing elements, housing structural fissures, excessive lubricant level, blocked breather outlets.
- Slow‑moving or underpowered slewing performance: Degraded gear and bearing assemblies, incomplete brake release action, hydraulic motor internal leakage, incompatible reduction gear ratio.
- Severe overheating conditions: Inadequate oil quantity, poor lubricant quality, overloaded working scenarios, continuous brake drag, low heat dissipation efficiency.
- Gear slipping and tooth fracture damages: Impact‑caused heavy loads, foreign debris intrusion, fatigue wear aging, shaft alignment deviation errors during 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 | E320D2 E323D2 | Keyword | Excavator Machinery Part |
| 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