3-205
UltraMgr
The chart above shows the Angle and Offset for a machine that operates at 2000 —
3500 RPM plotted together. A pure angle reading of 0.45 mils/inch (0.44 mrad)
and a pure Offset reading of 2.5 mils (0.06 mm) are marked by the arrows. These
readings are clearly in the acceptable range when looked at individually. However,
look what happens when these two “acceptable” reading are plotted together. The
two lines connect outside the acceptable range. This illustrates the importance of
looking at the Offset and Angle together when establishing specified tolerances.
Jackshaft
One of the biggest advantages in using a laser system is the ability to align over long
distances (> 20 inches or 508 mm). The further apart the sensor heads are
mounted, the less practical it is to use the Offset and Angle Tolerances. In those
cases, the Jackshaft Tolerances should be used. This method measures the two
angles (
α
and ß) as shown in the figure below. The combination of these two angles
are laid out on a graph similar to the offset and angle graphic. When the angles are
within tolerance, the cursor will be in the Excellent or Acceptable range.
2
Содержание 2130 RBM Consultant Pro
Страница 1: ...Reference Manual 2130 RBM Consultant Pro Laser Alignment Analyzer and Fixtures Part 97191 Rev 1 ...
Страница 6: ...vi ...
Страница 20: ...1 8 Fixtures Case Layout top section ...
Страница 22: ...2 2 Setting Up and Using Laser Alignment Fixtures Laser heads front view Laser heads rear view ...
Страница 90: ...3 10 Horizontal Alignment ...
Страница 364: ...5 22 Straightness Measurements ...