What is the procedure used for the alignment of shaft?
Rim and Face alignment method are oldest method used for shaft alignment of misaligned equipment/shaft. In this method two dial indicator ( rim and face dial ) are used to determine the relative position of movable shaft with respect to stationary shaft.
How do you align a dial gauge?
To measure vertical misalignment, perform the following steps:
- Rotate the dial indicators to 6:00.
- Set the face dial indicator to read zero.
- Set the rim dial indicator to the sag value.
- Rotate both shafts (if possible) to 12:00.
- Record the DIR and DIF dial indicator TIR values.
How do you use a dial indicator?
Align the base of the spindle with the item to be measured. Push the dial indicator against the item, counting the number of revolutions made to double-check your accuracy. Hold the gauge in place to take your measurement. Count the marks displaced on the small gauge.
What is axial alignment?
An axial misalignment means the two ends of each axis, or shaft, don’t meet. They are parallel, but when fully extended, the ends do not come together. This kind of misalignment can also be called an end float because the ends of the shafts “float” but do not connect, meaning they can move in and out.
Why we perform the shaft alignment?
Proper shaft alignment is one of the most important factors influencing rotating equipment performance, including from a lubrication perspective. Misaligned shafts can generate excessive forces during equipment operation that place significant stress on the rotating components.
What are the parts of a dial indicator?
Some of the major parts of a Dial Indicator are as follows:
- A dial with the incorporation of the main scale.
- The plunger (spindle).
- Indicator (Needle).
- Locking screw or Locknut.
- Mini dial that represents the number the revolutions.
- Magnification mechanism.