During commissioning of a marine propulsion test rig, the PIV bearing assembly is subjected to rotational and axial loads as it supports the drive shaft of a diesel engine simulator. This component enables smooth, low-friction rotation while accommodating misalignment between the motor and load, ensuring consistent power transmission. In marine components manufacturing, the PIV bearing is integral to the test benches used for validating propeller shafts, reduction gears, and coupling systems. It allows for precise angular adjustment, compensating for installation tolerances and operational wear. The bearing’s robust design ensures reliability in high-vibration environments, reducing maintenance downtime in production facilities. It is commonly found in test cells where marine gearboxes are stress-tested under simulated sea conditions. While primarily used in propulsion testing, it also appears in auxiliary systems such as steering gear test rigs, supporting the mechanical integrity of critical components before they are integrated into vessels.