98A49207605001 is a precision aerospace maintenance tool, compliant with AS9100D aerospace quality standards and FAA/EASA regulations, designed for commercial aircraft engine accessory drive (EAD) systems maintenance.

It acts as a specialized EAD gear bearing installation tool, used to mount the gear bearing into the EAD housing during MRO work. It applies uniform, controlled force to seat the bearing correctly without causing deformation or surface damage, avoiding excessive friction that would accelerate bearing wear, cause abnormal EAD operation, or lead to engine power transmission failure, which could threaten flight safety.

Made from high-strength, non-scratching engineering plastic and corrosion-resistant chrome-molybdenum alloy steel, it has a dedicated design for specific EAD gear structures, and an ergonomic non-slip grip. Weighing 0.92kg, it is portable for on-engine or hangar use, critical for EAD system operation stability.