AN PUBLICATION | MAY 2011 METAL’S MORTAL ENEMY What it is. What it does. How to fi ght it. BEST PRACTICES Measuring wear debris FRICTION Tribology in the kitchen 2011 ANNUAL MEETING Exhibitor & Sponsor lists CONDITION MONITORING Three tiers for off-road machinery THE ENVIRONMENT What are your key issues for 2012? Check out our digital TLT—sponsored by Nanovea—at www.stle.org