Size (CM)：79*59*60

Weight (KG)：97

Brand

JUNXUN

Overview

The 856A1428G01 is a high-performance, precision-engineered No. 3 Bearing Outer Race Installation and Removal Tool Kit custom-designed 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 kit is purpose-built to facilitate the safe, perfectly aligned, and non-marring installation or extraction of the critical No. 3 bearing outer race from the high-pressure compressor (HPC) rotor housing. Manufactured by JUNXUN to comply with strict CFM International maintenance manual dimensional specifications, the 856A1428G01 provides absolute concentricity control, preventing housing bore scoring, race-seating misalignment, or micro-fractures during high-tension assembly sequences.

Key Points

Precision-Aligned Mandrel Architecture: Engineered with micro-tolerance guide pilots that ensure the outer race is perfectly centered during the entire pressing or extraction cycle, eliminating radial load bias.

Uniform Force-Distribution Plates: Features dedicated installation mandrels and extraction plates that apply 360-degree contact pressure, protecting the bearing's precision surfaces from point-loading and damage.

Aerospace-Grade Tensile Metallurgy: Fabricated from premium, heat-treated high-tensile alloy steel certified to withstand intensive mechanical loads without thread stripping, deformation, or structural fatigue.

Non-Marring Interface Protection: Outfitted with passivated contact shoulders and protective guide components that safeguard high-value bearing housing bores from metal-on-metal friction and scoring.

Applications

CFM56 Core Engine Module MRO: Deployed by certified engine technicians during scheduled shop visits to replace worn or high-time No. 3 bearings as part of the core module overhaul.

Propulsion System Maintenance Repairs: Utilized within specialized repair cells for the safe, damage-free removal of seized outer races during troubleshooting sequences.

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