Size (CM)：104*104*27 

Weight (KG)：34 

Brand
JUNXUN

Overview
The 856A2985G01 is a high-performance, master-grade Booster and Low-Pressure Turbine (LPT) Shaft Drive Adapter custom-engineered for the rigorous maintenance, modular repair, and overhaul (MRO) of CFM56 series turbofan engines. Classified as a flight-critical powerplant handling asset and specialized Ground Support Equipment (GSE), this adapter is purpose-built to facilitate the secure, perfectly aligned coupling of the engine’s internal rotor shafts to external diagnostic and testing instrumentation. Manufactured by JUNXUN to comply with strict CFM International maintenance manual interface dimensions, the 856A2985G01 provides an absolute, rigid mechanical link that ensures stable rotation and precise data acquisition during engine build-up, rotor balance checks, and ground-run troubleshooting sequences.

Key Points
Precision-Spline Interface Geometry: Custom-machined to match the specific tooth profiles and pitch of the CFM56 booster/LPT rotor shafts, ensuring zero-play, balanced force transmission.

Rotational Stability & Centering: Engineered to maintain absolute shaft concentricity during manual or automated drive-shaft turning, protecting internal seals and high-speed bearings from side-loading fatigue.

Aerospace-Grade High-Tensile Metallurgy: Fabricated from premium, heat-treated alloy steel certified to withstand the mechanical stress of drive-torque application without deformation or thread stripping.

Non-Marring Contact Surfaces: Outfitted with passivated contact shoulders that protect the highly polished shaft-end surfaces from metal-on-metal friction and scoring during the docking process.

Applications
CFM56 Rotor Stack Overhaul: Deployed by certified engine technicians during module assembly to safely engage and position the LPT/Booster shaft stack.

Engine Troubleshooting & Diagnostic Testing: Utilized within specialized repair cells or on-wing engine maintenance to perform rotor-friction checks and drive-line rotation audits.

Airlines Engine Tool Crib Logistics: Essential specialized GSE hardware for commercial airlines, regional fleet operators, and third-party MRO facilities servicing CFM56 fleets to ensure dispatch reliability and optimal engine performance.

856A2985G01 is a precision-engineered specialized component for critical aviation ground support equipment (GSE) and professional aircraft maintenance rig systems, compatible with global mainstream commercial narrow-body, wide-body and regional aircraft fleets. Manufactured in strict compliance with AS9100D aerospace quality standards and FAA/EASA safety protocols, it is precision-machined from high-strength corrosion-resistant aerospace-grade alloy with a rugged wear-proof and anti-corrosion surface finish, optimized to endure harsh airfield operational conditions including continuous mechanical vibration, heavy structural impact, extreme temperature fluctuations and chemical exposure from aviation fluids like hydraulic oil, jet fuel and cleaning solvents. It features ultra-tight application-specific dimensional tolerances and industry-standard mounting interfaces for seamless drop-in integration into GSE and maintenance rig assemblies, delivering superior structural stability, long-term wear resistance and operational resilience to effectively enhance the reliability, load-bearing performance and service life of ground support equipment for worldwide aircraft MRO and on-tarmac ground support operations.