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Bridge type flat ruler

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The bridge type flat ruler is a flat ruler with a flat shape. It is mainly used for checking the flatness of flat plates and long guide rails by the coloring method and the indicator table method. It is also commonly used to test the straightness of the edge of the workpiece by the optical gap method. Manufactured, rectangular flat feet are also made of bearing steel or granite.
 
Bridge type flat ruler is made according to JB/T7977-99 standard, material HT250, work surface adopts scraping process, use temperature (20plusmn; 5) °C working face requirements: no sand holes, pores, cracks which seriously affect the appearance and performance , slag inclusions, shrinkage, scratches, bumps, rust spots and other defects. Extra large bearings are large and heavy, and are of high value. They are mostly single-piece or small-batch production, and are also key products or important projects with tight delivery deadlines. They are high-tech products. Measuring it requires special measurement methods and measurement tools. The inner diameter, outer diameter, raceway and inner cone standard parts are replaced by bridge feet with special side blocks, which can be easy to operate, convenient to use, accurate in measurement and economical. Therefore, the bridge ruler has been selected as a special measuring tool commonly used in the production of extra large bearings. It is extremely necessary to master the detection method of this special special measuring tool.
 
The bridge type flat ruler is easy to store, and the suspension can be laid flat, and it will not affect the straightness and parallelism due to long-term flat laying. The bridge rule is not easy to rust. It does not need to be oiled during use. It will not be used for a long time. Apply a thin layer of general industrial oil during storage to prevent rust and affect precision.
 
The bridge type flat ruler is used for the flatness of the flat plate, the long guide, etc. by the coloring method, the indication flat plate, and the straightness of the edge of the workpiece by the light gap method.

 

500×50 1000×50 2000×80 3000×100 4000×100 6300×120
750×50 1600×70 2500×90 3500×100 5000×110 8000×120

 

 

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