Bridge type flat foot is also called bridge-foot short, with the exact plane of foot-shaped gauge. Square foot for the flatness of the coloring, inspection plate, long guide, also commonly used in light-gap method test the edge of the workpiece edge straightness. 
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 Bridge type flat-foot accuracy: 0, 1, 2, 3 
 Technical requirements: manufacturing, materials, iron HT250 JB/T7977-99 standard, face scraping process, the use of temperature (20plusmn;) The ℃ face requirements: not seriously affect the appearance and performance of sand holes, pores, cracks, slag, shrink loose, scratches, bumps, rust point defects. Large bearing large, heavy, high value, are a single piece or small batch production, but also bear in supporting the delivery of key products or important projects, is a highly sophisticated technical products. Measure it using a special measuring methods and measurement tools. Its diameter, diameter, raceways, standard parts within the cone equipped with a special side of the bridge foot instead of, so you can play a simple, easy to use, accurate measurement, saving the effect of the economy. So the bridge feet was chosen as the production of large bearings, special measuring tools to master this particular special measuring the detection method is extremely necessary. 
 How it works: the bridge feet to the exact plane of foot-shaped gauges, mainly used for coloring, indicating that the flatness of the table method, inspection plate, long rails, etc., but also commonly used in the straightness of the edge of the optical gap law of the workpiece edge. general manufacturing, high-quality cast iron rectangular flat foot is also useful for manufacturing of bearing steel or granite. 
 Repair and maintenance: bridge foot easy to custody, hanging flat can, not because of the long-term flat affect its straightness and parallelism. Bridge foot to save is not easy to rust during use without oiling, the long-term use, general industrial oils coated with a thin layer of storage to prevent rust and affect the accuracy. 
 Bridge type flat feet keeping improper easy to rust; during normal use without oiling, if long-term use, storage coated with a layer of general industrial oils, to prevent rusting while the impact of flat-foot accuracy. 
 Square foot convenience custody of the bridge type, and hanging flat can be, but not long-term flat affect its straightness and parallelism. To ensure accuracy. 
 Bridge type flat feet http://www.bthxzw.com/qiaoxingpc.html 
 The Botou Navistar cast material measuring 
 Tel: 5664468 13373071795 
 Contact: Xin Yue