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Linqing Feite Bearing Co., Ltd

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Linqing Feite Bearing Co., Ltd
Common problem
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发布时间:2021-08-28浏览次数:3

Bearing installation: bearing installation must be carried out under dry and clean environmental conditions. Before installation, carefully check the machining quality of the mating surface of shaft and shell, the end face of convex shoulder, groove and connecting surface. All mating surfaces must be carefully cleaned and burrs removed, and the unworked surface of the casting must be sanded.


Bearings should be cleaned with gasoline or kerosene before installation, and used after drying, and ensure good lubrication. Bearings are generally lubricated with grease, but also can be lubricated with oil. Grease lubrication, should be used without impurities, oxidation, rust, extreme pressure and other superior performance of grease. The filling amount of grease is 30%-60% of the bearing and bearing box volume, not too much. Double row tapered roller bearings with sealed structure and pump shaft bearings have been filled with grease and can be used directly by users, not to be cleaned.


When the bearing is installed, equal pressure must be applied on the circumference of the end face of the ring, and the ring is pressed into it. It is not allowed to knock the end face of the bearing directly with the tools 𨱍, so as not to damage the shaft In the case of small interference, the end face of bearing ring can be pressed by a sleeve at room temperature, and the sleeve can be knocked by the sleeve to balance the ring If a large number of installation, can be used hydraulic machine. When pressing in, it should be ensured that the outer ring end face and shell shoulder end face, the inner ring end face and shaft shoulder end face are pressed tightly, no clearance is allowed.


When the interference is large, oil bath heating or inductor heating bearing method can be used to install, heating temperature range of 80℃-100℃, the highest can not exceed 120℃. At the same time, the application of nuts or other appropriate methods to tighten the bearing, in order to prevent the bearing cooling after the width direction of contraction and the gap between the ring and the shaft shoulder.


Clearance adjustment should be carried out at the end of installation of single row tapered roller bearings. The clearance value should be determined according to different operating conditions and the size of interference. If necessary, tests should be carried out to determine. Double row tapered roller bearings and water pump shaft bearings have been adjusted at the factory clearance, installation need not be adjusted. Bearing installation should be carried out after the rotation test, first used for rotating shaft or bearing box, if there is no abnormal, then no load, low speed operation by power, and then depending on the operation situation gradually increase the rotation speed and load, and detect noise, vibration and temperature rise, abnormal, should stop running and check. After normal operation test, it can be delivered to use.


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