CONTENTS APRIL 2018 | VOL. 31, NO. 4 | efficientplantmag.com 10 Bolts that are properly tightened and stay that way are one of those little difference-makers in the overall scheme of plant reliability. Learn about what makes bolts succeed or fail on p. 10. What's Wrong with My Bolts? Investigations of two real-world mysteries help explain why bolts can be too loose or too tight. Randall Noon, P.E. 16 21 25 37 Understand Vertical Motor Bearings Bourbon Boom Drives Distillery Expansion Lubricant Myths That Can Cost You Microgrids Are On the Rise Jim Bryan Electrical Apparatus Service Association (EASA) Michelle Segrest Contributing Editor Ken Bannister Contributing Editor APRIL 2018 EFFICIENTPLANTMAG.COM | 1http://www.efficientplantmag.com http://www.EFFICIENTPLANTMAG.COM