14185665 Planetary Gear II Sany SY1350C1C3KH Tracked hydraulic excavator spare parts

14185665 Planetary Gear II Sany SY1350C1C3KH Tracked hydraulic excavator spare parts

Planetary Gear II (14185665), relying on professional gear manufacturing technology and a strict quality control system, is specially designed for the harsh working conditions of construction machinery. It is widely used in the gearboxes, slewing mechanisms, and traveling mechanisms of major construction machinery such as excavators, crawler cranes, and loaders. It is suitable for various complex scenarios such as mining, infrastructure construction, and building hoisting. It effectively solves industry pain points such as planetary gear tooth surface wear, tooth root fracture, and meshing jamming, helping equipment improve transmission efficiency and extend the service life of the whole machine. It is a core preferred component for maintenance and replacement in the construction machinery aftermarket, and is also one of the popular high-quality products for foreign trade export and parts wholesale.
As the “power transmission core” of the planetary gear transmission system, the Planetary Gear II is meticulously crafted in terms of material selection and processing. It uses high-quality alloy carburized steel and employs precision hobbing and shaving processes, combined with multiple heat treatment processes such as carburizing, quenching, and low-temperature tempering. This effectively improves the hardness and precision of the tooth surface, achieving a tooth surface hardness of HRC60-64 and a tooth root hardness controlled at HRC45-50. This ensures excellent wear resistance and contact fatigue strength on the tooth surface while guaranteeing sufficient toughness at the tooth root, preventing tooth surface spalling and tooth root fracture under heavy loads and impact conditions. Simultaneously, the optimized tooth profile design, using an involute tooth profile, reduces meshing impact and noise, improves transmission smoothness, and adapts to complex operating requirements such as high speed and heavy loads, enabling long-term stable operation under harsh conditions.

Core technical parameters:

– Product Model: 14185665
– Product Name: Planetary Gear II
– Compatible models: Excavators, crawler cranes, loaders and other major construction machinery (can be precisely matched according to specific models)
– Material: High-quality alloy carburized steel (tooth reinforcement treatment)
– Tooth profile type: Involute tooth profile (smooth meshing, low noise)
– Tooth surface hardness: HRC60-64
– Tooth root hardness: HRC45-50
– Machining process: precision gear hobbing, gear shaving, carburizing and quenching, low-temperature tempering, and precision grinding, resulting in burr-free and scratch-free tooth surfaces.
– Accuracy class: GB/T 10095.1-2008 Class 6
– Number of teeth: 18 teeth (evenly distributed, precise meshing)
– Module: 3.5mm
– Pressure angle: 20°
– Tooth tip circle diameter: 70mm
– Tooth root circle diameter: 59mm
– Inner diameter: 28mm (for planetary gear shaft mounting)
– Thickness: 25mm
– Maximum allowable load: 1200 N·m
– Operating temperature: -40℃~140℃
– Service life: ≥10,000 hours (under normal operating conditions)
– Weight: 1.8kg (precisely adapted to equipment installation load requirements)

The 14185665 Planetary Gear II, with its superior materials, precision craftsmanship, and accurate technical parameters, is not only suitable for the repair and replacement of planetary transmission mechanisms in various engineering machinery, but also meets diverse needs such as foreign trade export, wholesale of engineering parts, and equipment modification. Each product undergoes rigorous factory testing, meeting quality standards. It boasts advantages such as precise meshing, convenient installation, wear resistance, low maintenance costs, and smooth transmission, effectively reducing equipment downtime losses, improving operational continuity, and decreasing maintenance frequency and costs. Simultaneously, it is compatible with planetary carriers for collaborative work, ensuring the overall stability of the transmission system.

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