Abstract: A system for key-rotation in a data platform. A computing system receives key-rotator application configuration instructions and generates a key-rotator application based on the key key-rotator application configuration instructions. A key-rotation process using the key-rotation application is initiated based on a predetermined schedule where the key-rotation process includes accessing a data platform based on an account identification of the key-rotator application configuration instructions, determining a private key and public key, storing the private key and the public key in a datastore, assigning the public key to a user profile of the data platform where the user profile included in the key-rotator application configuration instructions, updating one or more data platform services with the private key, and deleting a prior public key from the user profile.

Abstract: A clutch bearing (34) for a transportation refrigeration unit includes one or more rolling elements (38) supportive of one or more components of an electromagnetic clutch for a transportation refrigeration unit, and a plurality of bearing races (36) configured to retain the one or more rolling elements. The bearing races include a coating of thin dense chromium to reduce corrosion and/or damage of the clutch bearing. A transportation refrigeration unit includes a power source (12) and a blower (32) of the transportation refrigeration unit. An electromagnetic clutch (14) is operably connected to the power source and the blower (132) and includes a rotor (16) positioned at a central axis and an armature (18) positioned at the central axis and having an axial air gap (22) to the rotor when the clutch is in a disengaged position. A clutch bearing is located at the central axis and is supportive of the rotor.