General Lubrication Concepts – GLC Badge PreparationPosted on July 1, 2026 (July 2, 2026) by Michael Holloway Course Content Lessons Status 1 GLC Part 1: Lubrication Theory for Industrial Maintenance and Reliability 2 GLC Part 2: Lubricants and Lubricant Selection: Foundations for Reliability 3 GLC Part 3: Lubricant Applications and Oil Sampling Analysis 4 GLC Part 4: Lubricant Condition Monitoring and Contamination Control 5 GLC Part 5: Lubricant Storage, Handling, and Identification Fundamentals