Dial Gauge Shaft Alignment

The plunger moves a needle clockwise when pushed in and counter clockwise when let out. The face can be rotated so that the needle points to zero. The case is held by a clamp and holding rod which are in turn held by a jig or magnetic base. There are several different types and manufacturers of dial indicators, but their functions are basically all the same. The number of set up options are too numerous for this discussion.

Dial indicators are most commonly graduated in thousandths of an inch (0.001″, or 1 mil). When mounting a dial indicator to the shaft or coupling to be measured, it is important to position the stem as close to perpendicular (90° relative to the surface being measured) as possible. If the stem is at an angle, it increases the length of travel, and will decrease the accuracy of your measurements.

Dial indicators are measuring devices designed expressly to measure relative position. The primary parts of a dial indicator are the face or dial, the case, and the plunger. The plunger is a spring-loaded part that can be depressed into the case causing the dial to move clockwise.

The shafts alignment is one of the main stages during the maintenance and repair of electric motors, fans, pumps, gearboxes, compressors, turbine units, etc. The proper shaft alignment helps to:

• Reduce vibration
• Reduce energy consumption
• Reduce wear of parts
• Increase working life of parts
• Enhance quality control

BALTECH has developed and manufacturers inexpensive, simple and efficient electronic and mechanical alignment systems BALTECH SA «ShaftAlignment» Series, which perform horizontal and vertical shaft alignment. BALTECH alignment systems help to perform the alignment with two methods: dial indicator method and radiaxial method.

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