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Bearing vibration noise
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Bearing vibration and noise
In addition to the basic requirements of load, speed and service life of the bearing,Low noise and low vibration in the practical application is becoming increasingly important. As we all know, excessive vibration causes early bearing failure, and increased vibration will increase energy consumption; on the other hand, high noise will destroy the individual and family living environment. Thus, from the start to identify and address the source of vibration and noise, vital for good bearing operation.ZGSL by Andrew vibration analyzer for each of these factors affect the bearing vibration and noise analysis. For the manufacture of low vibration and low noise bearings provide effective help.
Factors vibration and noise impact
Factors ferrule
Rotating bearing rolling elements rolling in raceway and inspire in a smooth and continuous noise, this noise is commonly referred to as raceway sound. Raceway sound will increase direct bearing vibration and noise, the noise generated by the source that the ferrule natural vibration load after due. By increasing roundness, waviness and other levels of precision bearing ring channel, to reduce vibration and bearing noise.
When analyzing the surface precision ferrule, ZGSL advanced Taylor Hobson roundness and waviness of the ferrule is analyzed, Taylor Hobson can detect waviness only between a few nanometers, thereby improving product quality assurance process for the engineer It provides a strong guarantee.
Ball factors
Vibration numerical size and surface precision ball bearing directly affects the vibration and noise. Roundness ZGSL requires producers of ball the ball has a very low vibration levels and good surface finish, such as raising the ball, waviness requirements observed at the surface of the ball 100 times magnification, the surface can not have any plans contusions, abrasions, bite wounds and other defects. So as to achieve the purpose of reducing the bearing vibration and noise.
Cage
Factors bearing cage during rotation of the free vibration and rolling elements collide with it emits a noise, this noise is commonly referred to as cage sound. Cage sound will increase direct bearing vibration and noise. By increasing manufacturing precision holder, preferably a reasonable gap and cage runout to improve. Cage ZGSL used in its production factory have advanced production technology and high manufacturing standards. In terms of the cage runout after dozens of experiments, runout cage to get a desired value. For the bearing vibration and noise reduction has helped.
Cleanliness factor
Clean bearing bad will directly increase the bearing vibration and noise. Therefore, active use of advanced cleaning technology, spare parts Hop sets after thorough cleaning product effective to improve the cleanliness of the bearing is particularly important. ZGSL advanced gas washing machine parts bearing effectively cleaned; cleaning products in terms of co-sets after the first use of ultrasonic cleaning equipment, after the spray process in which spray cleaning using scientific multi-stage spray process, greatly improving the cleanliness of the bearing to reduce the vibration and bearing noise.
Grease factor
Bearing grease to bearing vibration and noise reduction has played a crucial role. Good grease will not only help extend the life of the bearing and the bearing can reduce vibration and reduces bearing noise. Especially on special requirements for motor noise, the choice of bearing grease is particularly important. ZGSL according to different requirements of customers, for customers to choose a different grease. Bearing vibration and noise to fully meet the special requirements of customers.
Increased vibration value and Countermeasures
Shuanglian ZGSL for each factory products 100% inspection of noise and vibration. Meanwhile, ZGSL recently significantly improved deep groove ball bearings are designed to further reduce vibration and noise levels. Once the situation below, customers need attention.
Increased vibration value and Countermeasures
Types
|
Description
|
Reason
|
Measures against
|
Self-generated vibrations
|
Bearing vibration during rotation |
The ball and the circular
raceway The degree of change |
It can not be ignored.
But can root According to the application to choose the correct clearance Reduce vibration |
Vibration caused by the
outer bearing exposure |
Irregular noise with downgrade
bearing performance and production, mostly in the case of wear oxidation or corrosion |
Pollution of the surrounding
environment affect the bearing. Load operation without adequate bearing grease |
These cases can be
appropriately designed by the isolation section and provide adequate lubrication can be eliminated |
Vibration caused by
the misalignment |
The bearing misalignment
noise generated during rotation |
When installing the bearing
is not well aligned with the shaft or bearing / shaft and housing is not precise enough. |
Good alignment method
and a special alignment tool to reduce vibration / use of high-precision shafts and housings |
Damage caused by
the vibration itself |
The bearing misalignment noise
generated during rotation |
Incorrect operation
or incorrect assembly |
Using the correct method of
mounting and assembly tools. Use with Time-controlled induction heater and temperature preset mode |