HRB bearing | simple diagnosis method of rolling bearing, it is worth collecting!

There is rotational, have HRB bearing ( ) Jiaxing bearing group sales co. , LTD. ( The company) Is bearing group co. , LTD. Established in jiaxing spot sales window, specializing in HRB brand bearings, facing the whole country, the existing stock 50 million yuan, covers the whole bearing, have very strong spot supply, is the group's retail sales center. The simple diagnosis method ( Only judge without exception) 1, the choice of measurement site ( 1) Determination of parts don't change, to ensure that the premise is consistent, it is best to bearing seat. ( 2) The probe contact surface is smooth and firm. ( 3) General measurement in vertical and axial directions. Speed needs three direction, acceleration in one direction. Bearing Lou in the outside, measurement site: bearing seat; Internally, the bearing measurement site: the position with high bearing rigidity or basis. Fault caused by the impact vibration spreads out to half spherical wave, in the component interface transfer time, the energy loss of about 80%. Sensors on the load direction sensitivity was 100%, the direction of 45 degrees is 95%, the axial is only 2%. 2, determination of parameters of the bearing vibration frequency range in a few HZ to thousands of HZ. Generally less than 10 hz, displacement measurement; 10 hz to 1 KHZ ( Intermediate frequency) , measuring speed; More than 1 KHZ ( High frequency) , the measured acceleration ( Often used for more than 10 KHZ) 。 Speed and acceleration, commonly used for the removal of other vibration signal, the filter for the bandwidth required. Working parts of the amplitude is normal distribution, abnormal cases, a particular frequency amplitude distribution is more concentrated. Determination of 3, cycle time interval depends on the economy, and does not leak anomalies, the shorter the better. 4, discriminant standard low absolute value judgment standard and relative discriminant standard, combination. 's absolute standard applies to all bearing doesn't exist, the same kind of bearing the discriminant standard are also different for different occasions. So it is important to note that the use of occasions to choose the appropriate criteria. Discriminant standard is difficult to determine the absolute values of the low frequency part with relative standards or relative decision method, the bearing vibration of reason for high and low frequency at the same time two discriminant criteria is to be used for judging. If you are more than HRB bearing the author introduces the bearing inspection and replacement of interest or have any questions, please click on the website on the right side of the online customer service or call:, you close the way of jiaxing bearing purchasing advisors. - - - - - - Editor: jiaxing bearing sourcing consultant LTD. All rights reserved, The company) Reprint please indicate the source