Positioning two or more machines so that the rotational centerlines of their shafts are colinear at the power of transmission point under operating conditions.

Desired intentional misalignment of MTBM (Machine To Be Moved) to compensate for thermal growth and/or dynamic loads. Most commonly specified as coupling target.

The angle between two machine shaft centerlines. For spacers, the angle between each shaft and the connecting element (shaft) at each flex plane.

A type of soft foot characterized by a wedge shaped air space between the underside of the machine foot and the baseplate contact area.

Two or more lines positioned in space with no offset or angularity between them. (This is the objective of an alignment job). In effect, all colinear lines are the same line.

Lying or acting in the same plane.

For alignment purposes, a thick shim, usually ¼-inch or thicker.

The bolts anchoring or holding the machine to the base or foundation. Also called base bolts or anchor bolts.

A type of soft foot that is caused by external forces (coupling strain, pipe strain, etc.) acting on a machine independent of the foot to baseplate connection.

A bolt or screw attached to the base or foundation used to move or position the MTBM (Machine To Be Moved) horizontally.