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Analysis of the Reasons of Fine Instrument Bearing Layout and Brake Valve Failure

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One: fine bearing layout:
1. Top bearing This type of bearing has strong bearing capacity; conflicting torque. W骶芤 淼 淼 蚣苤 蚣苤 岢 岢.
2. Deep groove ball and angular touch ball bearings are widely used in instrumentation in deep groove ball bearings and angular touch ball bearings. The most obvious features are compact layout, small conflicting force, and sensitive rotation; Selection of layout and public service level.
3. Contact type bearing This type of bearing has no inner ring or no outer ring; the layout is compact; radial scale. Bao 捎诩跎倭颂 ψ ψ ψ 谥嵘匣蛲 侵 侵 侵 侵 侵 侵 惶岣 惶岣 惶岣 惶岣 惶岣 惶岣 С С С The class is bad, the □ core group is swaying, and the 诟 岢 岢 岢 岢 . . . . . . . . . . . . . . . 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为 因为The cost is increased. Therefore, such bearings are usually only used for high-speed equipment and components that require high levels of conflicting torque.
4. Multi-ring bearings are also called multi-ring bearings. It usually has 3 to 4 ferrules; 3 columns of steel balls. The center ferrule acts as a forced motion; the movement can be swayed; or the continuous transformation opposite to the direction of the working axis. The ferrule is called an oscillating bearing; the successive transformation is called a rotary bearing. Because the movement of the center ferrule will reduce the collision torque on the working shaft by 7/8 9/10. This kind of bearing is used for low speed but conflict of demand. When the torque is very small.
Two: the cause of the brake valve failure:
1. Solution When the outer diameter of the tappet becomes larger and the length becomes longer, it can be quietly sanded with fine sandpaper and then loaded and pulled; until it meets the demand, when the tappet becomes short; the joint between the tappet and the valve body 1-2 pieces of general flat gaskets with a thickness of 1mm-2mm and an outer diameter of φ18mm.
2, scale changes and problems when the outer diameter of the tappet becomes larger; there will be stuck in the air brake valve housing; the valve body fittings can not be opened, not inflated, not deflated; or in open position No return; no inflation, no air pressure, when the length of the tappet becomes shorter; the valve body fittings can not be opened, no air intake, no deflation.

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