EC360 Swing Gearbox 2nd Planetary Carrier Spider With Sun Gear Assy For

EC360 Swing Gearbox 2nd Planetary Carrier Spider With 2nd Sun Gear Assy For Excavator SA8230‑22660 VOE14596620 VOE14596616

Product Overview

This second‑stage planetary carrier spider integrated with matching sun gear serves as a vital inner component for EC360 excavator swing reduction gearbox. It undertakes major torque transmission task inside the slewing reducer, transforming high‑speed low‑torque power output delivered by swing motor into large‑torque rotation to drive the upper car body turning. Long‑time heavy‑duty working conditions such as mine excavation, heavy material handling and frequent swing action will easily bring about gear tooth abrasion, planetary carrier distortion, spline wear and abnormal rattling noise. This complete assembled spare part can substitute defective original assemblies directly, restoring smooth swing performance and eliminating jerky rotation failure. Cross‑reference OEM part numbers: SA8230‑22660, VOE14596620, VOE14596616, all key mounting dimensions fully conform to EC360 swing gearbox inner structure requirements.

Technical Specification

Product Highlights

1. Superior forging craft: The planetary carrier spider adopts one‑piece forging blank, effectively improving overall structural rigidity, resisting impact load generated by frequent swing start‑stop, lowering risk of carrier cracking and deformation under severe working circumstance.
2. High‑precision gear machining: Sun gear teeth are finely ground after heat treatment, keeping stable meshing gap with planetary gear and ring gear. It reduces metal friction heat generation, suppresses striking noise when excavator swings, extends whole gear set service cycle.
3. Pre‑assembled complete unit: Finished assembly is delivered as one whole set. Repair technicians do not need to match and assemble scattered gears on site, greatly shortening gearbox overhaul time and cutting machine idle loss for end users and repair workshops.
4. Good interchangeability: Strictly produced according to original dimension standard. Spline, mounting hole and tooth profile all keep high matching degree, no extra welding or cutting modification required during installation. It is a cost‑effective stocking choice for spare parts dealers, maintenance factories and construction project fleets.

Manufacturing & Quality Control

Our factory owns full processing workflow covering forging, CNC machining, heat treatment and gear grinding. Each batch of alloy steel raw material will go through incoming material inspection. Critical dimensions including carrier hole position, sun gear tooth profile and spline parameter are inspected one‑by‑one. Sample torque load test will be carried out for finished assemblies to verify bearing capacity. Qualified products are packed with shock‑proof filler and solid wooden case, preventing bump deformation and rust during long‑distance ocean and land transit. Defective items will be screened out before shipment.

FAQ

1. Q1: What failure phenomena mean this second‑stage planetary assembly needs replacement? A: Continuous knocking noise inside swing gearbox, weak swing power, uneven rotating speed, metal powder or iron chips found in swing gearbox lubrication grease. You should open gearbox casing and check 2nd planetary carrier and sun gear under these conditions.
2. Q2: Can this assembly fit other excavator models? A: This assembly is mainly designed for EC360 model. Before purchasing for other machines, please compare your old part number and internal gearbox structure carefully to prevent wrong order.
3. Q3: What key points should we pay attention to during installation? A: Thoroughly clean gearbox housing, clear away old metal debris; apply qualified high‑temperature gear grease; perform low‑speed swing running‑in firstly, avoid full‑load heavy swing operation right after assembly completion.
4. Q4: How about the warranty scope? A: We provide warranty against manufacturing defects. Damage brought by foreign matter entering gearbox, improper installation, over‑load operation will not be covered by warranty. Please follow standard gearbox maintenance requirements.