depth micrometer diagram

C. 5.00 mm. need to measure a tolerance that is less than 0.002″), most machinists will turn to a Micrometer Reading. Dial Depth Gage Series 527-with Fine Adjustment. $20.80 shipping. Includes case for safety and storage. x reading on thimble). The machine operates... LearnMech.Com is a Mechanical Project-oriented platform run by Sachin Thorat who is a B-Tech Graduate in Mechanical Engineering. THE MICROMETER, CLICK HERE FOR EQUIPMENT AND Vernier depth gauge is used for measuring the depth of holes, recesses and distances from a plane surface to a projection. If What you looking for is not here, you may send a request to modify articles, Notes, and Content modification, Feedback, Suggestions here (Team will reply as early as Possible ): Introduction To Engineering Metrology -Types Of measurements. The anvils are accuracy ground and lapped with its measuring faces flat and parallel to the spindle. z. Hole: Measuring very small holes. 2. CLICK HERE FOR MORE REGARDING The figure illustrates an outside micrometer. The sleeve is accurately divided and clearly marked in 0.5mm division along its length which serves as the main scale. Starrett 443 Series 0 to 9" SAE Mechanical Micrometer Depth Gauge w … Electronic Depth Gages. There should be a full engagement of nut& screw when the micrometer is at its full reading. The measuring points are at Extreme ends provided with anvils. link to Hydraulic seals - Definition, Types, Diagram , Function, Failure, Application, link to Slotter Machine - Types, Parts, Operations, Diagram, Specification. 2. google_ad_format = "728x90_as"; The micrometers having good accuracy (about 0.01 mm), hence is used for most engineering precision work. google_ad_format = "468x15_0ads_al_s"; See also: Introduction To Engineering Metrology -Types Of measurements, Least count of micrometer= pitch of the spindle screw / no of division in the spindle. If this does not happen, then zero error is present in the micrometer which must be accounted for in final readings. The slotter or slotting machine is also a reciprocating type of machine tool similar to a shaper. Depth Micrometer Series 129-Interchangeable Rod Type. $45.00. z. Telescoping: Measure internal bores. Starrett has developed a revolutionary new way to explore the parts views of our precision tools. Digit Counter Depth Micrometer. google_color_text = "000000"; google_ad_type = "text_image"; Save my name and email in this browser for the next time I comment. 6. o screw gauge is the suitable instrument that achieves the required accuracy. A thimble scale is graduated on the thimble with 50 equal divisions. L.C. The thimble has a constant-force mechanism, so that once the spindle contacts the surface of the measured object, it will stop tightening. This type of micrometer can be read by 0.001 mm length. 4.51 mm. 6. The micrometer is then adjusted at a dimension slightly smaller than the internal (bore) diameter of the workpiece. google_color_url = "008000"; x reading on thimble) = 13.5 + 0.01 X 35 = 13.850 mm. 2. effectively locks the spindle without altering the distance between the measuring faces. The micrometer is then removed and reading is taken. In this micrometer, the screw has two types of pitches as shown in Fig., one smaller and other larger, instead of one uniform pitch as in ordinary micrometer. The micrometer is available in various sizes and ranges, and the corresponding micrometer should be selected depending upon the size of the workpiece. Select a micrometer with a desired range of measurement. 5. = 0.01 – 0.009 = 0.001 mm Hence the accuracy of the vernier micrometer is 0.001 mm. The micrometer head is then held finely against the bore as shown in Fig. 1. Height Gage Accessories. = Value of smallest division on thimble- Value of smallest division on the vernier scale. 7. Both the screws are right-handed and the screws are so arranged that the rotation of thimble, one screw. google_ad_width = 468; By reducing the pitch of the screw thread or by increasing the number of divisions on the thimble, the axial advance value per one circumferential division can be reduced and the accuracy of measurement can be increased. PROCESSES INDEX PAGE,