Flexible coupling insert for Kobelco KNW-A1-F/H

The flexible coupling insert, part number E6987-3, serves as the interface between the oil pump shaft and the primary drive shaft in the power transmission system. By bridging these two components, it allows for the efficient transfer of rotational torque while compensating for minor angular or parallel misalignments between the shafts. This component is designed to maintain a consistent connection, ensuring the oil pump receives the necessary power from the engine or transmission system to sustain required fluid pressure and flow rates.

This part is specifically engineered for use in the Kobelco KNW-A1-F/H model, compatible with serial numbers 99F0388 through 392. It is installed within the pump drive assembly to provide a consistent mechanical link. Regular inspection of this insert is necessary as part of standard maintenance routines to ensure the continued alignment and operation of the pump drive system.

Flexible coupling inserts are used in heavy machinery to isolate the driven pump from torsional shocks and vibrations generated by the engine. By acting as an intermediate element, the insert absorbs energy during operation, which helps protect the pump bearings and shaft seals from premature wear caused by mechanical stress and misalignment.