GSG - Tri-Roll Gaging - "Build a System"

• Type 3 Rolls - are Full Profile for checking Functional Diameter - Full ribbed rolls for functional sizes Full ribbed rolls for functional sizes
  coarser than 48 T.P.I (For 48 T.P.I 
• Type 4 Rolls - are Cone & Vee Single Element for checking Pitch Diameter - Two ribs (“vee type”) on lower rolls Two ribs (“vee type”) on lower rolls
  (1 and 3) One rib (“cone type”) on (1 and 3) One rib (“cone type”) on upper roll (2) Flank contact limited upper roll (2) Flank contact limited to .1 pitch.
• Type 5 Rolls - are Best Wire Radius Single Element for checking Pitch Diameter - Single ribs only w/ Single ribs only with “Best Wire” size th “Best Wire” size
  radius for any given pitch (T.P.I) radius for any given pitch (T.P.I)

Zero System Variable Gages are available for external and internal thread applications.  The external thread application are covered by the segment and Tri covered by the segment and Tri-Roll units and the internal applications by the ITC unit.

• Precision
Rigid construction and constant gage Rigid construction and constant gage
pressure guarantee consistent and precise read- pressure guarantee consistent and precise readings.
• Qualitative Readings
The Tri The Tri-Roll not only indicates whether a Roll not only indicates whether a
threaded part is within assigned limits, it also threaded part is within assigned limits, it also
shows the exact position of the pitch diameter shows the exact position of the pitch diameter
within a tolerance range. In addition, the Tri within a tolerance range. In addition, the Tri-Roll
will check size and out of roundness of plain cylin- will check size and out of roundness of plain cylindrical parts. drical parts.
• Repeatability Repeatability
Fixed mounting of the lower rolls assures Fixed mounting of the lower rolls assures
a solid support for the work piece. Only the upper a solid support for the work piece. Only the upper
roll actuates the indicator, thereby providing re- roll actuates the indicator, thereby providing repeatable readings. peatable readings.
• Easy to Set Easy to Set
No adjustment required on the lower rolls No adjustment required on the lower rolls
means that no adjustment is required when chang- means that no adjustment is required when changing from one thread size to another. ing from one thread size to another.
• Wide Gaging Range
Both the ITC and the Tri Both the ITC and the Tri-Roll are able to Roll are able to
inspect a wide range of parts with a single frame. inspect a wide range of parts with a single frame.
• Adaptability Adaptability
The variable thread system can be used The variable thread system can be used
to measure plain diameters and can be used with to measure plain diameters and can be used with
the “Zero Spindle “ gage system. the “Zero Spindle “ gage system.
• Economical with Long Work Life
The variable thread gage system provides The variable thread gage system provides
longer life of the tooling and thus reduces cost longer life of the tooling and thus reduces cost.