ناقل الحركة النهائي لـ حفارة Kubota KX101-3 KX91-2 U30-3 / -5

Universal & Model-Specific Final Drives | 2.5T – 4.0T Class

1. Product Overview
These final drives are high-torque, compact units designed to fit the narrow undercarriages of mini excavators. Whether you are replacing a unit on a Volvo EC30 or a Yuchai YC35, these drives provide the essential power for counter-rotation, climbing gradients, and traveling across rough terrain. Most of these models utilize a 9-bolt or 10-bolt sprocket mounting pattern and a standard frame flange.

2. Technical Specifications & Performance

Component Type: Axial Piston Travel Motor & Planetary Reducer

Machine Class: 2.5 Ton – 4.5 Ton Mini Excavators

Motor Speed: Dual Speed (High/Low Displacement)

Maximum Output Torque: 2,500 – 4,800 Nm

System Operating Pressure: 210 – 250 Bar (21.0 – 25.0 MPa)

Standard Sprocket Mounting: 9-Hole / 10-Hole / 12-Hole (Brand Specific)

Frame Mounting: Standard Pilot Diameter (OEM Fit)

Compatibility: Kobelco SK40, Bobcat 331/425, Kubota KX101/U30, Volvo EC30, Case CX36

Seal Type: Duo-Cone Floating Mechanical Seals

Warranty: 1-Year Quality Guarantee

Lead Time: 3–7 Working Days

3. Application Compatibility List
Kobelco: SK40, SK40SR, SK45, SK30SR-2

Bobcat: 331, 331D, 331E, 334, 425, 428, X331

Kubota: KX101, KX101-3, U30, U30-3, KX91-2, KX91-3

IHI / Imer: 25J, 28N, 30J, 35J, 35N

Volvo: EC30, ECR28, ECR38

CASE: CX31, CX36, CX36B

Yuchai: YC35, YC35-6, YC35-7, YC35-8

4. Key Engineering Advantages
Dual-Speed Switching: Integrated automatic or manual "rabbit/turtle" speed shifting, allowing for high torque during excavation and high speed during site transit.

Precision Planetary Gearing: Heat-treated gears and high-quality sun shafts ensure quiet operation and a long service life under heavy radial loads.

Floating "Duo-Cone" Seals: High-performance mechanical seals prevent oil leaks and protect the internal gears from mud, water, and sand ingress.

Direct Interchangeability: Specifically designed to match OEM dimensions for hydraulic port locations (A, B, Pi, and Drain) and frame mounting pilots.

5. Supply Range & Brand Expertise
We specialize in professional-grade drivetrain and hydraulic components for:

Drivetrain: Final Drives, Travel Motors, Swing Reducers, and Swing Motors.

Hydraulics: Main Piston Pumps, Control Valves, and Gear Pumps.

Undercarriage: Sprockets, Idlers, and Track Rollers.

Extensive Brand Coverage: Kubota, Bobcat, Kobelco, Volvo, Case, Yanmar, Takeuchi, Hitachi, Komatsu, and more.

6. Global Logistics & Service
Express Shipping: Fast delivery via UPS, DHL, FedEx, and TNT.

Global Support: Assistance with Air Freight and DDP (Delivered Duty Paid) options to simplify customs.

Service Commitment: Every unit is pressure-tested and torque-verified before shipping to ensure immediate "plug-and-play" reliability.