Pin Nose Gages and Seal Gage Operation Manual
ThePin Nosegages measurecritical pinseal diametersand widths.These gagesadjust
to cover all sizes ofseal diameters. The standard pin nose gage measures seal
diameters from 2 3/8” – 13 3/8”.
ThePin Nose can be used to measurestraight ortapered seal diameters, shallow bores,
andholelocations.
The pin nose gages use precision contact points to accurately measure the ring groove
diameter and width at the critical sealing point of the face groove.
Before inspecting parts, the pin nose gages must be preset to a nominal predetermined
dimension. The Seal Inspection Tolerances and Setting Dimension tables in this manual
determine the gage’s setting dimensions and gauging tolerances. The pin nose gages can be
preset using gage blocks, Frame Standards, or Gagemaker’s Pin Nose Diameter Gage
SettingMaster.
To inspect parts, the contact points are placed in the seal of the part and the gage is
positioned by sweeping to obtain an indicator reading. Gage indicators show actual deviation
from the preset master dimension. Taking measurements in several different locations along
the seal will provide an average seal diameter or width. It is also recommended that the gage
be zeroed periodically during use to maintain accurate readings.
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INTRODUCTION
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