Who records bearing measurements and in which document?

The correct choice is that bearing measurements are recorded by the Work Center Supervisor in a permanent bearing book. This document serves as a comprehensive record of the bearing measurements taken during maintenance activities. It is essential for tracking the status of equipment and ensuring proper maintenance practices are followed over time.

A permanent bearing book is specifically designed to maintain a long-term log of critical data related to bearings, such as measurements, service history, and any observations made during inspections. This ensures that maintenance and operational personnel have access to accurate and historical data, which is crucial for making informed decisions about equipment reliability and performance.

The other options may involve recording or documenting information but do not provide a method that reflects the standard practices and requirements for tracking bearing measurements as effectively as the permanent bearing book does. By having a centralized and dedicated resource for bearing data, the organization can better manage and anticipate maintenance needs, enhancing the overall safety and efficiency of operations.