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What preparations are required before rolling the bearing unit

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(1) Before the bearing device; the appropriate requirements should be used to measure the skill requirements on the design drawings; view the machining quality of the shaft and the seat hole and related parts (such as dimensional accuracy, shape accuracy and appearance roughness, etc.).
(2) The shaft and the seat hole of the device are covered with bumps, burrs, rust spots or solid particles (such as wear debris, sand, soil), etc.; not only make the bearing device difficult and the device orientation is incorrect; and the solid particles If it falls into the bearing, it will have a grinding effect; when the bearing rotates, it will wear or scratch the outer surface of the bearing; therefore, it is necessary to carefully check it before the device; if any of the above defects are found; it should be corrected. For example, using oil锉 Remove burrs, bumps, rust spots; and use fine sand cloth to illuminate; as well as remove solid particles, dirt, etc.
(3) The surface of the device should be cleaned with a clean solution of gasoline, kerosene, toluene or xylene; and wiped with a clean rag; then coated with a thin layer of lubricant; this will make the device more convenient.
(4) Open the bearing package when the device is installed; immerse it in the above-mentioned gasoline and other liquids to gently change the hand; make sure to adhere to the frame; the rolling oil and the surface of the raceway are completely cleaned.
(5) When removing many bearings; first use hot oil with a temperature of 90-100 °C to melt the encapsulating oil; use the things without front and no debris to dig all the old oil; then rinse for a few minutes; then Rinse the oil with kerosene; finally remove it with gasoline. After cleaning, clean it; put on the film and put the bearing on the clean cloth on the workbench or on the paper to dry.
(6) Pay attention to the sealed bearing can not be removed by this method; the inside of the seal should not be removed as it is.

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