TIMKEN bearing preload effect

Source: China Bearing Network Time: 2018-02-06

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[Daily Bearing Network] Rolling bearings should have proper clearance during operation; depending on the application intention, there is also an internal stress in the bearing when assembling the bearing; so that the bearing has a negative clearance to apply; It is called preload.
The internal clearance (original clearance) of the TIMKEN tumbling inlet bearing in front of the device is different from the internal clearance (referred to as the working clearance) of the TIMKEN bearing when the device reaches the operating temperature; the former is large; it is different from the application; many require negative running clearance; The load is applied; this preload is to ensure that the TIMKEN bearing is protected from slippage due to the load conditions used during mating.

The following is the primary effect of TIMKEN tumbling imported bearing preload <br> in the radial direction and axial direction of the correct resolution axis; can also control the runout of the shaft. For example, the spindle bearing of the machine tool, measuring instrument bearing.
Can improve the bearing stiffness of TIMKEN imported; such as the bearing of the spindle of the machine tool, the bearing of the car differential organization pinion.
Reduce running noise. Avoid axial oscillations and abnormal sounds due to resonance.
Control the rotary sliding, revolutionary sliding and self-rotating sliding of the rolling body; such as high-speed rotating angle touch ball bearings, thrust ball bearings.
Adhere to the ferrule; adhere to the correct orientation of the rolling body. When using the thrust ball bearing and thrust spherical roller bearing in the horizontal axis.

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