130104000256A009 Sun Gear Sany SY1350C1C3KH Tracked hydraulic excavator spare parts

130104000256A009 Sun Gear Sany SY1350C1C3KH Tracked hydraulic excavator spare parts

The 130104000256A009 sun gear is the core driving component of the planetary transmission of the gear reducer, serving as the central power input component of the gear train. This product works in conjunction with the planetary gears, ring gear, and planetary carrier to handle power input, torque transmission, and speed regulation. By driving the planetary gears, it achieves speed reduction and torque increase, directly affecting the gear reducer’s transmission efficiency and power stability, ensuring smooth and stable operation of the equipment during travel and rotation.
This product is forged from SANY’s original high-strength alloy structural steel, and processed through tempering heat treatment, high-frequency quenching of the tooth surface, and precision grinding. It features a dense structure, precise tooth profile, high coaxiality, wear resistance, impact resistance, and fatigue resistance, making it suitable for heavy-load start-up and shutdown, high-frequency vibration, and harsh outdoor operating conditions. Old sun gears are prone to problems such as tooth surface wear, tooth breakage, deformation, and shaft misalignment, leading to abnormal transmission noise, power interruption, and insufficient torque, and in severe cases, causing gearbox failure and shutdown. This product is an original standard part, which can replace old parts without damage. It is suitable for gearbox maintenance, overhaul, and bulk stocking, effectively restoring equipment transmission performance and reducing maintenance and downtime losses.

【Core Technical Parameters】

— Product Model: 130104000256A009
— Product Name: Sun Gear
— Product Type: Original Power Input and Torque Transmission Core Components for Engineering Machinery Gearboxes
— Compatible Models: Compatible with all Sany travel and slewing gearboxes of corresponding specifications, allowing for non-destructive replacement of original parts.
— Main body material: High-strength alloy structural steel, resistant to pressure and wear, impact, and not easily deformed or broken.
— Operating conditions: Suitable for heavy-duty start-stop, high-frequency vibration, high-speed continuous transmission, and harsh outdoor conditions.
— Structural Design: Centrally integrated shaft and gear structure, with precise tooth profile, stable shaft center, and uniform force distribution.
— Transmission performance: tight tooth meshing, small transmission clearance, efficient torque transmission, and stable speed with no loss.
— Surface treatment: Precision forging + heat treatment + tooth surface hardening + rust prevention treatment, wear-resistant, corrosion-resistant, and anti-aging.
— Operating characteristics: As the active input end of the gear train, it stably drives the planetary gears, accurately transmits power, and amplifies torque.
— Dimensional accuracy: Original factory precision engineering standard, small tooth profile error, high coaxiality, and tight fit.
— Installation method: In-situ alignment assembly, no modification required, convenient and efficient maintenance and disassembly.
— Adaptability to operating conditions: Withstands long-term high-speed heavy-load transmission, resists fatigue, is not prone to gear breakage and wear, and has a long service life.
— Service life: High structural strength and excellent tooth surface wear resistance, making it less prone to failure during long-term continuous operation.

The 130104000256A009 sun gear is a core transmission component of Sany’s original gearboxes. It features high hardness, precise tooth profile, stable transmission, and strong wear resistance, making it suitable for both travel and slewing gearboxes in construction machinery. It effectively improves transmission noise, power jerking, insufficient torque, gear breakage, and other faults, stabilizing equipment transmission performance, enhancing operational efficiency and smoothness, and reducing equipment failures and maintenance downtime costs. It is a high-quality original part for equipment repair, maintenance, and bulk stocking.

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1 130104000256A001 Screw
2 130104000256A002 Plug
3 130104000256A003 Gasket
4 130104000256A004 End Cap Assembly
5 130104000256A005 Gasket
6 130104000256A006 O-ring
7 130104000166B001 Sun Gear
8 130104000166B002 Planetary Carrier
9 130104000256A009 Sun Gear
10 130104000256A010 Planetary Carrier
11 130104000256A011 Bolt
12 130104000256A012 Sun Gear
13 130104000256A013 Snap ring
14 130104000256A014 Planetary Component
15 130104000256A015 Gasket
16 130104000256A016 Planetary Carrier

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