Date: 2013-08-20

Judging dairy equipment failures in the NSK bearing used in maintenance method

　　Dairy equipment NSK bearing used its strong regularity in the process, and very good repeatability. Normally, high quality dairy products NSK bearings when used at the start, vibration and noise are small, but some scattered spectrum, amplitude is small, it may be due to some defect in the manufacturing process, such as caused by Burr on the surface.
　　Movement after a period of time, to maintain a certain level of vibration and noise, spectrum is single, only Yi、erbei frequency. Rare three times more than double the frequency spectrum, state dairy equipment NSK bearings are very stable, entered a period of stability.
　　Continue to run into use later, dairy equipment NSK bearing vibration and noise began to increase, sometimes abnormal noise, but changes in the vibration increases more slowly, at this time, dairy equipment NSK bearings kurtosis value suddenly reaches a certain value. In our opinion, dairy equipment performance for the early failure of NSK bearings.
　　At this point, calls for close monitoring of the dairy equipment NSK bearings, pay close attention to the changes. Thereafter, dairy device NSK bearing towering degrees value also began fast declined, and close to normal, and vibration and noise began significantly increases, its increased significantly began accelerated, dang vibration over vibration standard Shi (as ISO2372 standard), its dairy device NSK bearing towering degrees value also began fast increases, dang both over vibration standard, and towering degrees value also over normal value (available towering degrees relative standard) Shi, we believes that dairy device NSK bearing has entered advanced fault etc, needed timely overhaul device, Replacing dairy equipment NSK bearings.
　　Dairy equipment NSK bearing fault feature to demonstrate advanced serious failure occurs (usually NSK bearing damage dairy equipment such as axle, Burns, Sha spallation, Raceway, beads to wear) most of the time not exceeding one week, device capacity larger, faster speeds, shorter intervals. Therefore, actual dairy equipment in NSK bearing fault diagnosis, once advanced fault characteristics, dairy equipment should be decisive judgment NSK bearings faulty, as soon as arrangements for inspection.
　　Use factors mainly refer to installation and adjustment, maintenance, maintenance, repairs and other compliance with technical requirements. Under dairy equipment NSK bearings technical requirements for the installation, use, maintenance, maintenance, dairy equipment in operation by NSK bearings under load, speed, temperature, vibration, noise monitoring and checks and lubrication conditions, abnormal findings immediately find the cause to adjust, bring it back to normal.

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Product Model	Inside Diameter	Outside Diameter	Thickness
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241/710CAK30E4 NSK	710	1150	438

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