We can provide free samples . Please contact Email for any inquiries

Rolling road sound source is the inherent vibration caused by load ring after. Due to the elastic contact rings and rolling elements of nonlinear vibration system. When the lubrication or machining precision is not high it will inspire the vibration associated with the elastic characteristics, transfer into the air into a noise. As everyone knows, even the parts bearing contemporary technology manufacturing highest processing needle, its work surface there are tiny geometric error is not a degree, so that the raceway and rolling body produce tiny wave excitation vibration vibration system.
1 the resistance of oil film diagnosis technology
Features: use the same standard to the different working conditions. The results of the diagnosis of surface spalling, indentation, crack and other abnormal difference.
Scope of application: applicable to the rotary shaft exposed situations.
2 vibration diagnosis technology
Characteristics: the application of vibration diagnosis technology widely; it can realize the on-line monitoring; diagnosis, diagnosis theory has been mature.
Application: suitable for fault monitoring INA bearing in rotating machinery.
3 iron spectrum diagnosis technology
Features: the machine without disintegration; low investment, good effect; can discover early fatigue failure of needle bearing; mechanism study can wear.
Application: suitable for fault diagnosis with INA oil lubricated bearings, the bearings with grease lubrication is difficult.
4 temperature diagnosis technology
Features: simple diagnosis; better to bearing burn judgment effect.
Scope of application: simple routine diagnosis for roller bearing in the machine.
5 optical fiber monitoring and diagnosis technology
Features: optical fiber displacement sensor with high sensitivity; extracted directly from the INA bearing surface, improve the signal to noise ratio; can directly reflect the bearing manufacturing quality, surface wear degree, load, lubrication and clearance.
Scope of application: applicable to the sensor is installed in a bearing seat machine.
6 sound emission diagnosis technology
Features: rapid diagnosis, simple; online monitoring.
Scope of application: new technology developed in recent years, is seldom used in roller bearing condition monitoring.
Although INA bearing raceway noise is unavoidable, but can take high precision machining parts work surface, the correct selection of denoising bearing and precise use of the bearing so that the damping.
Needle roller bearing, a rotating inner ring and outer ring raceway surface, due to contact with the rolling scrolling, and running track to the dark side, the running track of the raceway surface does not belong to abnormal, thus can be informed load conditions, so when removing INA bearings.