Glastonbury Southern Gage STC Comparator Variable Thread Gage

Glastonbury Southern Gage STC variable thread gages are made of five components that comprise a complete Tri-Roll system. These units consist of five components. (Image shown varies from actual product.  see resources tab)
1. Bases & Accessories
2. Frames
3. Dial Indicator
4. Stop Adjusting Tool
5. Gaging Rolls – Inch

Call or email sizes for pricing Ph 866-945-5742 / email: sales@willrich.com

 

 

Glastonbury Southern Gage  STC Comparator Variable Thread Gage

• Precision Ball slide construction and constant gaging pressure assure precise reading through   linear travel of the ball slide.
• Definitive Helical path seating and 60% peripheral contact provide functional size position within the  pitch diameter tolerance assigned.
• Gaging Range Single frame covers a size range of #10 through 3/4″.
• Versatile Segments are easily changed with positive mounting pin alignment.
• Economical Reduced gaging time compared to Go/NoGo gages
• System offers actual measurements of dimensional characteristics for quicker machine adjustments during thread production
• Reduces gaging time over thread plug and ring gages

SYSTEM 21
System 21 provides for interchangeable assembly with respect to functional size only. Functional size must be measured at the maximum material limit within the length of standard gaging elements. The characteristic known as NO GO functional diameter must also be verified. This can be accomplished by using fixed limit gaging or variable gaging with functional elements.
SYSTEM 21A (FOR METRIC THREADS IN ACCORDANCE WITH ANSI B1.18M)
System 21A provides for interchangeable assembly with functional size verified at the maximum material limit using standard length gaging elements. This can be accomplished using fixed limit gaging or variable gaging with functional elements. System 21A also states that the minimum material limit (minimum pitch diameter) must be verified by inspecting two thread flank locations over the length of the thread. This can be accomplished by using variable gaging or thread roll snap gages with pitch diameter elements.
SYSTEM 22
System 22 provides for the interchangeable assembly with functional size verified at the maximum material limit using standard length gaging elements. This can be accomplished using fixed limit gaging or variable gaging with functional diameter elements. System 22 also states that the minimum material limit (minimum pitch diameter) must be verified over the full length of the thread. This can be accomplished using variable gaging with pitch diameter elements.
SYSTEM 23
System 23 provides for interchangeable assembly with functional size verified at the maximum material limit using standard length gaging elements and minimum material limit (minimum pitch diameter) must be verified over the full length of the thread. The gaging requirements for SYSTEM 22 would also apply here but in SYSTEM 23 other thread characteristics such as lead, flank angles, taper and roundness must have to be independently verified. Only thread characteristics, which are specified, will have to be inspected for SYSTEM 23 compliance.

Click below to enlarge information on variable thread gage components:

 

Variable Thread Gage Components

Variable Thread Gage Tri Roll Compnents

Variable Thread Gage Rolls

Click below to enlarge information on Thread Gage Rolls :

Variable Thread Gage Rolls

Thread Gaging Rolls

Click below to enlarge Thread Setting plug Information:

Thread Setting Plugs

 


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