Thread Gages - The FactoryLink

GLASTONBURY SOUTHERN
GAGE
DISTRIBUTOR TRAINING
)GSG Company Overview
Design & Build
)Thread Gages
)Zero Spindle
)Cylindrical Gages
)Snap Gages
)Surveillance Masters
)Customer Service
)Part Masters
)Competitive Analysis
)Production Services
)Why Use GSG
GSG Company Overview
• Glastonbury Gage was founded in 1964 in Glastonbury, CT
by individuals who had trained at Pratt Whitney Machine.
From these beginnings, Glastonbury Gage has continually
increased its product offering and services.
• Southern Gage was founded in 1955 in Erin, TN as an
outgrowth of the Woodworth Company. It grew to be a full
service gage manufacturer with emphasis on thread
gaging. During the 1980’s Southern Gage became known
for its educational and training programs on thread form
and gaging. In 1995, the owner of Glastonbury Gage
purchased Southern Gage from ITW.
GSG Company Overview
Cont’
• In March 1999, the GSG Erin operations occupied its new
42,000 square foot state of the art manufacturing facility. It
includes 5,000 square feet of laboratory space, temperature
and humidity control for the entire plant, CNC thread grinding
equipment and a streamlined process work flow.
• In July 2001 GSG consolidated customer service and plain
cylindrical production to improve deliveries and customer
response, while this effort was successful we at GSG continue
to find ways of improving delivery and customer service.
• Today, GSG has the broadest product line in its market and is
known as a quality leader. With the introduction of “lean
manufacturing” and improved processes GSG intends to
remain renown as the industry leader.
THREAD RINGS
• Southern Style
• AGD Style
• Chrome and Steel
• Solid Type (JIS and
ISO Specifications)
• Chrome and Steel
Southern Style
• Only available from GSG
• Last Longer
• True Round shape after
adjustment
• Lighter
• Easier to recognize Go and
NoGo
Southern Style
Thread Plugs
Reversible Plug
Gages
Taperlock Plug
Gages
Tri-Lock Plug Gages
Set Master Plug
Gages (Truncated)
Variable Thread Gages
•
Tri-Roll (External)
•
Internal Thread Comparator
(Internal)
•
Segment Gages (External)
•
Generally Required On
Government Contracts.
•
Provides Exact Dimensional Data
•
Data Collection Available
(Requires Appropriate Readout)
•
Pitch Diameter and Functional to
determine all functional aspects.
Pipe Gages
• NPT, NPTF and ANPT
Gages
• BSP Gages (Full Form)
• L-1, L-2 and L-3
Gages
• API Tapers
Additional Thread Gages
•
Lead Lock Gages
•
Flex Plug Gages
•
Various Thread Arbors for Design
and Build and Zero Spindles
•
API Gages
•
Buttress, ACME and other special
thread forms. 60° Threads
•
Multi-Start Threads.
•
Special Shank Gages for Power
Drivers.
•
Helical Coil Gages
•
Hi-Lo Set Plug
•
Chrome and Special Coated Gages
Cylindrical Ring Gages
• Jacketed Carbide
• Chrome Rings
• Progressive Rings
• Steel Rings
• Y, Z, X, XX, and XXX
Class.
• All ANSI Standards and
Special Modified Gages
CYLIDRICAL PLUG GAGES
Reversibles
Taper-locks
Wires
Progressive
Tri-Lock
• Y, Z, X, XX, and XXX Class.
WHY GSG CYLIDRICAL PLUG
GAGES
Cylindrical Specials
• Special Length Gages both OD and ID
• Special Materials
• Depth Notches
• Build to JIS and ISO Specifications
• Solid Carbide Rings
• Chrome Gages (Standard or Specials)
• Size Ranges from .010” (.254mm) to Approx. 28” (700mm)
Cylindrical Tolerances
Cylindrical Masters
• Generally used to set variable gages.
• When ordering “Master Gages” then max
and min part requirements are generally
required along with size.
• Sometime a nominal master is requested.
SEGMENT MASTERS
• Use Segment Masters for
large ID and OD
applications.
• ID, OD and Depth In One
Master
• Reduces weight and cost to
the customer
• Less Storage space
• Larger Size Potential Than
Standard Cylindrical Gages.
Cylindrical Tapers
• National Machine Tapers
• Jarno Tapers
• Morse Tapers
• Brown And Sharp Tapers
• Medical Luer Tapers
• Special Tapers
• Certification of customer
property.
Special Plug Gages
• Square Hole Plug
Gages
• Hexagon Plug
Gages
• Oval Plug Gages
• Depth Gages
• Polygon Rings
Surveillance Masters
Micrometer Master
Depth Micrometer Master
Z Axis Check
QUICKCHEK
Geometric Check
Vernier Caliper Master
Certification
All Gages Available With Certifications
Calibration
• Long Form
Certifications
• A2LA
Certification
• Certification
of
Customers
Product
Part Masters
• Used for “Mastering” of
Variable Gages.
• Commonly Used on Multi
Point Fixture Gages.
• Original Supplied by
Equipment Manufacturer,
GSG Most Common Source
for Part Masters in USA
Production Services
• Precision Lapping
• Finish To Close Tolerances
that Manufacturer can not
Perform
• Valve Spools, Rods, Pins,
Cylindrical Valve
Components and Match
Fits.
• Precisions Threaded
Components.
Design And Build
• Design and Build Gage Fixtures
• LVDT, Indicator or Attribute
Fixtures
• Build to customer drawings.
• Strict Controls, Project Review,
R&R and Gage Run Off to
Ensure Project Success
• Design and Build incorporating
Zero Spindle
Zero Spindles
• Sold as Part of a
Fixture or Separately
• All Attachments
Available with or
without Zero Spindle
• Only Available Through
GSG.
• Precision Rotation.
Arbors and Chucks
• Sold as Part of a
Fixture or
Separately
• All Arbors and
Chucks Available
with or without Zero
Spindle
Snap Gages
• 3 models available
• Measure groove
width and diameters.
• Adjustable Anvils
• Replaceable Anvils
GSG Customer Service
• Located in our Erin Facility all order entry, accounts, return
goods, and customer support starts here.
• Additional engineering and customer support from our CT
facility.
• Call for RA number on return goods.
• Technical Support both TN and CT.
• Engineering Support: Design, Thread engineering, Special
Tapers, Certifications, etc.
GSG Competition
• GSG generally offers a broader range of products.
• While each competitor has their own focus product, GSG
has several due to the merger of GG and SG.
• GSG has a much stronger presence nationally while
competitors have strengths in a much narrower geographic
region.
• GSG has a much broader technical support, from thread
gages to specials, cylindrical tapers and design and build
fixtures.
• GSG committed to their distribution network
Everyone Supplies Quality?
• Correct Size does not equate to quality!
• Surface finish, manufacturing to maximum material
condition, double stabilizing and lapping etc are all
factors often overlooked by end users as to real
quality.
• Adds to life of gage and overall reduction of cost
GSG CT vs. TN Capabilities
• TN – Threads, Zero Spindles, Thread
Comparators, Cylindricals, Design And
Build, Customer Service, Order Entry,
A/R, A/P, and Thread Engineering.
• CT – Special Cylindrical Taper, Part
Masters, Production Services, Cylindrical
Products under .375” (9.525mm), and
Design And Build
GSG CT & TN Conatcts
• TN
–
–
–
–
–
–
Kent Bell - Inside Sales Manager
Brant Lamastus – Quaoting
Rhonda Mitchum – Inside Sales
Rachael Stavely – Inside Sales
Karen Milton – Inside Sales
Eddie Shelton - Quoting
• CT
– Devon Miller - Inside Sales
– Jim Klein - Quoting
GSG Advantages
• Product Quality
• Technical Knowledge and Service
• Thread Seminars
• Technical CD
• Commitment To Training Distribution Network
• Web Site Promoting Technical Information.
• GSG Personnel on ANSI and B1 committees
• 50 Years In The Gage Industry.
SCREW THREADS
THREAD
TERMS
NOMENCLATURE
GAGING
SET PLUGS
PIPES
THREAD BASICS
Included
Angle
Flank Angle
or 1/2 Angle
Crest
Pitch
Diameter
Root
Flank
Ref. Pg. 2
Thread Nomenclature
Philosophy
An unchanging identification flows from the
product to the gage and on to the master.
Ga
Part
Master
ge
Ref. Pg. 9
1/2-13 UNC-2A
National Series
Nomenclature
Nominal size
Threads per inch
National series
½ - 20 NF – 2
LH *
Class of fit
Fine thread designation
* Modification (LH, special PD, etc.)
Ref. Pg. 10
Unified Series Nomenclature
Nominal size
Threads per inch
Unified series
½ - 20 UNF – 2B
LH *
Internal product * *
Class of fit
Fine thread designation
* Modification (LH, special PD, etc.)
* * ‘A’ would denote an external product
Ref. Pg. 10
National
vs
Unified
1/4-20 NC-2 1/4-20 UNC-2B
X1/4-20 NC-2B
X1/4-20 UNC-2
Include the ‘U’ and the ‘A
or B’, or don’t include
Ref. Pg. 10
either.
Metric Series Nomenclature
Metric series
Nominal size
Thread pitch
M8 X 1.25 – 6H LH *
Internal product * *
Class of fit
* Modification (LH, special PD, etc.)
* * ‘g’ would denote an external product
Ref. Pg. 14
Internal / External
Designation
Inch
‘A’ - External
‘B’ - Internal
Metric ‘e,f,g,h’ - External
‘G,H’ - Internal
Ref. Pg. 15
Ring Gage Application
Go Gage
Full Length
Free & Easy
Ref. Pg. 21
Ring Gage Application
NoGo Gage
Inch:
Not more than
three complete
turns
Ref. Pg. 21
Metric:
Definite drag
before the
second turn
Plug Gage Application
Go Gage
Full Length
Free & Easy
Ref. Pg. 22
Plug Gage Application
NoGo Gage
Inch:
Not more than
three complete
turns
Ref. Pg. 22
Metric:
Definite drag
before the
second turn
Thread Set Plug Gages
The gage inspects the part
Part
Ring
Gage
Master/Set
The master/set inspects the gage
Ref. Pg. 23
Truncated Set Plug
Truncated
Section
Ref. Pg. 23
Full Form
Section
Ring Gage Wear Plane
Part
Rin
g
Ga
ge
Ref. Pg. 24
Ring Gage Wear Plane
Part
Rin
g
Ga
ge
Ref. Pg. 24
Set Plug Contact
Set Plug
Gage
Truncated
Full Form
Rin
g
Ga
ge
Ref. Pg. 24
Common Thread Forms
27½° 27½°
30° 30°
60°
American Inch &
Metric
55°
British /
Whitworth
14½° 14½°
29°
Acme & Stub
Acme
Ref. Pg. 32
45°
52°
Buttre
ss
7°
PIPE THREADS
Threads That Seal
Tapered Threads That
Assemble with Straight or
Tapered Threads
Ref. Pg. 32
Pipe Thread Nomenclature
Nominal size
Threads per inch
National
½ - 14 NPT
Taper
Pipe
Ref. Pg. 34
Pipe Thread Nomenclature
A
C
F
G
H
I
L
Aeronautical
Coupling
Dryseal
Gas
Hose
Intermediate
Loose
Ref. Pg. 34
M
N
P
R
S
T
Mechanical
National
Pipe
Railing
Straight
Taper
Common Pipes
NPT - National Pipe Taper
L-1 Ring Gage
L-1 Plug Gage
NPTF - National Pipe Taper Dryseal
L-1, L-2, 6 Step Ring Gages
L-1, L-3, 6 Step Plug Gages
ANPT - Aeronautical National Pipe Taper
L-1, L-2, 6 Step Ring Gages
L-1, L-3, 6 Step Plug Gages
Ref. Pg. 34
L-1 Plug Engagement
+/- 1 Turn
L1 Gage
Internal Part
Ref. Pg. 36
L-1 Ring Engagement
External Part
L1 Gage
Ref. Pg. 36
+/- 1 Turn
Taper Inspection
Using L3 Plug Gage
Taper
Taper
Taper
Too Severe In Tolerance Too Straigh
Ref. Pg. 38
Taper Inspection
Using L-2 Ring Gage
L2
L2
L2
Taper
Taper
Taper
Too Severe In Tolerance
Too Straight
Ref. Pg. 38
6 Step Plug & Ring
Ref. Pg. 42
Using 6 Step Gage
Based on the L1 Gage, do you
have a Minimum Part, Basic Part,
or Maximum Part?
Pick the two appropriate steps:
Minimum Part - Mn & Mnt
Basic Part - B & Bt
Maximum Part - Mx & Mxt
Push gage into or onto part.
Face of part should be between
the two steps.
Ref. Pg. 42
Surveillance Masters
Surveillance Masters
Surveillance Masters for checking Micrometers
All masters can be supplied in English or Metric.
The 01 Masters is made of Stainless, all others are chrome plated or.
Tolerances on standard mike masters +/-.0001 or +/- 0.0025 MM.
Tighter tolerances are available upon request with exception of 112
masters.
Mike masters can be modified or made to larger sizes.
Mike Master
01-1 Mike Master
Sizes: .100 .200. 300 .400 .512 .600 .762 .800 .900 and
1.000. Reason for .512 and .762 is so that you can check
mike at different location of mike. Will let you know if you
have lead error on thread in mike.
Is supplied with plastic storage case.
16-1 Mike Master
1.000 to 6.000 diameters in one inch increments
16-1/2 Mike Master
.500 to 6.000 diameters in half inch increments.
112 Mike Master
1.000 to 12.000 diameters in one inch increments.
The 112 is a paddle style gage. Dimensions are one inch by
two inch. With exception of 1.000 & 2.000 diameters which
are round.
Geometric Chek
Geometric Chek is used to check system capability of circular
measuring machines.
Material is 440-c stainless steel.
Measures concentricity, roundness, squareness, circular flatness, runout, parallelism and co-axiality
ID & OD are manufactured to XX geometry.
Is supplied with cert and carrying case.
Caliper Masters
1.000 to 6.000 in one inch increments to check outside jaws of
calipers and .500 to 4.500 to check inside jaws of calipers.
Gage is made out of tool steel and non gaging areas are painted
black crinkle.
As note above different sizes can be quoted.
Z Axis Master
Master has four steps one inch through four inch.
Material is 440-c stainless steel.
Is used to certify optical CMM’s.
Comes in two versions, ground and lapped.
Is marked on side of master to the nearest .00001.
Is supplied with cert and plastic form fitted case.
Depth Mike Masters
Depth mike masters are used to zero out rods in depth mikes
when rods are changed to different lengths
DM-1 is our step type master with steps from .500 to 5.500.
Tolerance on steps is +/- .0002.
ADM is our 11.500 version of depth mike master.
ADM is held to tighter tolerances. Tolerance on .500 to
5.500 in inch steps +/- .0001. Steps 6.500 to 11.500 are held
to tolerance of +/- .0002.
Quikcheck
Comes in two standard versions. Eight inch and sixteen inch version.
Also other sizes per request.
Material 440c stainless steel.
Used to check X Y and Z axis of CMM’s.
Periodic inspection of CMM will indicate linear inaccuracies.
Also calibrates hole size and angularity using the three holes.
Comes with cert and carrying case
Taper Gages
There are several types of tapers. National Machine Taper
also called Cat Taper. Commonly used for tool holders.
Brown & Sharpe, Morse, Jarno, Jacobs and medical Luer
Tapers. We also work to company specs.
All standard tapers manufactured to ASME/ANSI B5.10
Class Z. We have most specs for odd ball tapers in our
possession
Bluing capabilities to 95%, ability to match to several sets
at a time.
Most special tapers held to +/-.0001 on SE or LE. Taper
tolerance held to +/- .00005 taper per inch.
Have the ability to put steps on tapers to show go/no go on
diameter.
Can also salvage old taper gages by chrome plating. This is
not a good fix for tapers less than five inches in diameter
because of chrome costs versus making new.
Part like Masters
Part like masters are using used mainly in production lines where
inspection of automotive parts are needed to be checked quickly. It is
not uncommon for a cam shaft to have 50-100 features in less then a
minute.
Common types of part like masters but not limited to are. Cam and
crank shafts, rotor and drums, connecting rods, liner masters, valve
masters, shaft master’s extra long rings or discs.
Material commonly used is tool steel. Stainless steel will be utilized in a
damp situation.
We have the capability to design from part prints.
Can repair old masters with chrome plate
Can certify most masters to A2LA specs.
Sales
GSG
P 800-251-4243
F 800-242-7142
Technical