mechanical engineering

Factors Influencing Alignment procedure 1- Eccentricity (runout) Check · This might be done by a dial gage

Factors Influencing Alignment procedure 1- Eccentricity (runout) Check · This might be done by a dial gauge 2- Baseplate of machines (soft-foot) · Machines feet must be mounted perfectly horizontal with the baseplate. · The contact between the baseplate and the feet can be checked with a set of shims or with feeler gages. · During a new installation, o it is essential to use accurate straight edges and levels to make sure that all feet of the machine are on the same plane. · The accepted tolerance level for these planes is usually 0.1 mm. · Simple tests for soft-foot are by setting up the dial gage (at fixed place) and place a shim under one front foot and the reading noted. · It is then removed and placed under the next front foot. The reading should be the same. · The same procedure must be repeated for the rear feet. 3- Axial position of machines · The axial position of shaft ends is referred to as the distance between shaft ends (DBSE). · Normally, most couplings allow a large tole...