Ring gauge
Encyclopedia
A ring gauge, or ring gage, is a cylindrical ring of steel whose inside diameter
is finished to gauge tolerance and is used for checking the external diameter of a cylindrical object.
Ring gauges are used for comparative gauging as well as for checking, calibrating, or setting of gauges or other standards. Individual ring gauges or ring gauge sets are made to variety of tolerance grades in metric and English dimensions for master, setting, or working applications.
There are three main types of ring gauges: go, no go, and master or setting ring gauges.
Go ring gauges provide a precision tool for production comparative gauging based on a fixed limit. Go gauges consist of a fixed limit gauge with a gauging limit based on the plus or minus tolerances of the inspected part. A go ring gauge's dimensions are based on the maximum OD tolerance of the round bar or part being gauged. A go plug gauge's dimensions are based on the minimum ID tolerance of the hole or part being gauged. The go plug (ID) gauge should be specified to a plus gaugemakers' tolerance from the minimum part tolerance. The go ring (OD) gauge should be specified to a minus gaugemakers' tolerance from the maximum part tolerance.
No-go or not-go gauges provide a precision tool for production comparative gauging based on a fixed limit. No-go gauges consist of a fixed limit gauge with a gauging limit based on the minimum or maximum tolerances of the inspected part. A no-go ring gauge's dimensions are based on the minimum OD tolerance of the round bar or part being gauged. The no go ring (OD) gauge should be specified to a plus gaugemakers' tolerance from the minimum part tolerance.
Master and setting ring gauges includes gauge blocks, master or setting discs, and setting rings are types of master gauges used to calibrate or set micrometer
s, optical comparator
s, or other gauging systems. Working gauges are used in the shop for dimensional inspection and periodically checked against a master gauge.
Diameter
In geometry, a diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints are on the circle. The diameters are the longest chords of the circle...
is finished to gauge tolerance and is used for checking the external diameter of a cylindrical object.
Ring gauges are used for comparative gauging as well as for checking, calibrating, or setting of gauges or other standards. Individual ring gauges or ring gauge sets are made to variety of tolerance grades in metric and English dimensions for master, setting, or working applications.
There are three main types of ring gauges: go, no go, and master or setting ring gauges.
Go ring gauges provide a precision tool for production comparative gauging based on a fixed limit. Go gauges consist of a fixed limit gauge with a gauging limit based on the plus or minus tolerances of the inspected part. A go ring gauge's dimensions are based on the maximum OD tolerance of the round bar or part being gauged. A go plug gauge's dimensions are based on the minimum ID tolerance of the hole or part being gauged. The go plug (ID) gauge should be specified to a plus gaugemakers' tolerance from the minimum part tolerance. The go ring (OD) gauge should be specified to a minus gaugemakers' tolerance from the maximum part tolerance.
No-go or not-go gauges provide a precision tool for production comparative gauging based on a fixed limit. No-go gauges consist of a fixed limit gauge with a gauging limit based on the minimum or maximum tolerances of the inspected part. A no-go ring gauge's dimensions are based on the minimum OD tolerance of the round bar or part being gauged. The no go ring (OD) gauge should be specified to a plus gaugemakers' tolerance from the minimum part tolerance.
Master and setting ring gauges includes gauge blocks, master or setting discs, and setting rings are types of master gauges used to calibrate or set micrometer
Micrometer
A micrometer , sometimes known as a micrometer screw gauge, is a device incorporating a calibrated screw used widely for precise measurement of small distances in mechanical engineering and machining as well as most mechanical trades, along with other metrological instruments such as dial, vernier,...
s, optical comparator
Optical comparator
An optical comparator is a device that applies the principles of optics to the inspection of manufactured parts...
s, or other gauging systems. Working gauges are used in the shop for dimensional inspection and periodically checked against a master gauge.