Use environment on NTN bearing compressive noise detection method

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NTN bearing use environment: according to the use of parts and use condition and the environmental condition choose size, precision, with appropriate bearing is to guarantee the angular contact ball bearing life and reliability of the premise.
Use parts: angular contact ball bearing is designed to withstand in radial direction load primarily radial and axial load, usually in the combination of two sets of NTN bearing matching use, which should be in the car before and after the wheel hub, active cone gear, differential gear reducer, transmission parts, etc.bearing roller bearings
Allow speed: in installed correctly, lubrication good environment, allows for the bearing limit speed of 0.3 0.5 times. In normal circumstances, to 0.2 times the limit speed is the most appropriate.
Allow Angle: tapered roller bearing generally does not allow shaft relative shell hole with sloping, such as a tilt, the biggest not more than 2 .
Allow temperature: under normal load, and the lubricant is high temperature resistant performance, and lubrication sufficient conditions, general angular contact ball bearing allow - 30 ℃ - 150 ℃ ambient temperature work.
First, check the angular contact ball bearing in the vibration condition from the peel, indentation, rust, crack, wear and so on will be in the bearing vibration measurement report, NTN bearing vibration on plastic bearing damage is very sensitive, so, through the use of special bearing vibration measurement device (frequency analyzer, etc.) can be measured by the size of the vibration frequency points not infer the specific circumstances of abnormal. Due to the measured value of bearing conditions of use or sensor installation position and different, you need prior to each machine measurement value after the comparative analysis to determine the judgment standard.
Second, check the angular contact ball bearing roll voice situation because NTN bearing even with slight stripping and damage, also will be issued abnormal sound and irregular sound, so use measuring acoustic device can be a resolution, the measured sound device, the operation of the plastic bearing rolling sound size and quality to inspect, plays the role of advance prevention.
Third, to check the rotational Angle contact ball bearing temperature if use oil hole can directly measure the temperature of bearing ring, is more a right. Usually, NTN bearing temperature, generally based on plastic bearing the outdoor temperature can speculate out. If the lubrication, installation department right, the bearing temperature will flash up, can appear abnormal high temperature, then must stop operation, and take the necessary preventive measures.sealed ball bearing