How do you know which end of a go no go gauge is the go?
Plug gauge In the right hand image, the top gauge is a thread gauge that is screwed into the part to be tested, the labeled GO end will enter into the part fully, the NOT GO end should not. The lower image is a plain plug gauge used to check the size of a hole, the green end is the GO, red is the NO GO.
In which gauge GO and NOGO comes in the same end?
In progressive plug gauges both the “GO” and “NO-GO” gauges are on the same side separated by a small distance. First the GO portion is inserted into the hole. After the full length enters into the hole, further entry will be obstructed by the portion if NO-GO of the hole is within the tolerance limits.
Why would a go no go gauge be used?
Go No Go Gauges A go no go gauge is typically used in manufacturing settings to quickly check to see if an item is within the allowed tolerances. While it does not return an actual measurement it does allow an operator to know whether something is acceptable or unacceptable.
What is the difference between a go gauge and a no go gauge?
GO or NOGO or Master Defined A GO cylindrical plain gage is intended to go into/onto the piece being tested. The GO is testing the maximum material condition. A NOGO cylindrical plain gauge is intended not to go into/onto the piece being tested. The NOGO is testing the minimum material condition.
How many turns on a no go gauge is acceptable?
three complete turns
The use of NO GO gages and the limits of acceptance. 1 NOT GO (HI) Thread Plug Gages – Purpose and Use “NOT GO (HI) functional diameter is acceptable when the NOT GO (HI) thread plug gage applied to the product internal thread does not enter more than three complete turns. The gage should not be forced”.
Do I need both go and no go gauges?
Don’t do without the Go gauge as it is also possible to have too little headspace. The field guage is a quick check that there is not too much head space. If the bolt closes on a field gage the weapon is unsafe to fire. The gages you need are the go and no go gages.
Which type of gauge is go and no go gauge?
Snap gauge
Snap gauge is GO and NOGO type gauge. That means snap gauge consist of 2 fixed measured distance or gap, one is known as GO and another one is known as NOGO. GO means your job or workpiece is OK and NOGO means your workpiece is rejected.
What is the difference between go and no go gauges?
The GO is testing the maximum material condition. A NOGO cylindrical plain gauge is intended not to go into/onto the piece being tested. The NOGO is testing the minimum material condition. A Master cylindrical plain gage is intended to be used as a master for setting another tool or gauge to size.
Who makes Go No Go gauges?
U.S. Gage Corp.
U.S. Gage Corp. is a manufacturer and distributor of high quality GO and NOGO thread gages. A thread gage is a high precision measuring instrument used in the manufacturing industry to ensure that threaded parts being manufacturing conform to quality fit standards.
What does a no go thread gauge check?
The No-Go side of the thread gage performs a check on only the pitch diameter, verifying that it does not exceed the maximum condition. In this case the major diameter is not being checked. For this reason, if measured, the user will find that the OD of a No-Go thread gage is smaller than the OD of a Go thread gage.
How many turns can a no go thread gage go?
4.2. 1 NOT GO (HI) Thread Plug Gages – Purpose and Use “NOT GO (HI) functional diameter is acceptable when the NOT GO (HI) thread plug gage applied to the product internal thread does not enter more than three complete turns. The gage should not be forced”.
Can you put a progressive plug on a Gage?
•In some special cases, a little gaging time can be saved by putting the Go and No-Go diameters on a single gage member. •A progressive plug, for example, is suitable for checking a short hole, which is open at both ends. •Obviously, the hole cannot be deeper than the Go section of the plug.
What’s the difference between go and no go gauges?
Single-ended gauges – If only a single gauge (either Go or ‘No Go’ gauge) is on one handle, then it is called single-ended gauge. Double-ended Gauge: If both ‘Go’ and ‘No Go’ are combined on one handle on either side, it is called a double-ended gauge.
What do you call a progressive snap gauge?
These are also called progressive snap gauges since the assessment process takes place sequentially with the go gauge contacting the workpiece initially before the no-go gauge makes contact.
Can a Trilock Gage be made shorter than a NOGO Gage?
As a further aid in identification, the Go and NoGo members have a different length of gaging surface. It is permissible to make the NoGo gage shorter because it is not supposed to enter the part. •The Trilock design has been found best suited for gages between 1½ and 8 inches in diameter.