Current Topics

Soft Foot–What It Is and How to Minimize It

By on June 4, 2010

Soft foot is a common issue when aligning rotating equipment. It is a major cause of repeatability problems in shaft alignment measurements. In addition to alignment quality and repeatability problems, it can be a cause of machinery vibration, reduce life in electric motors, and cause internal clearance problems in gearboxes and pumps. But if the […]

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Pre-alignment Steps Save $$$

By on April 15, 2010

There are many types of tools with which we can perform an accurate shaft alignment. For most of us, laser alignment is considered the most accurate and effective. But shaft alignment can be done with reverse dial indicator sets, or dial indicators and chain-type brackets, or a straightedge, feeler gauge, and an outside caliper. I’ve […]

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Coupling Backlash – How it Affects Alignment, and How to Minimize It

By on March 24, 2010

There are three common errors made in shaft alignment—coupling backlash, soft foot and not tightening and loosening moveable machine hold down bolts in a proper sequence. Of these, soft foot can be the most problematic. But coupling backlash runs a close second.

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Troubleshooting Alignment Data

By on November 11, 2009

How to compare rim and base dial indicator data to the alignment data produced by laser systems.

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