Analysis:

 

Keep rolling element vibration, shock generated, regardless of how the grease types are likely to produce, to withstand the torque load or radial clearance is more prone to

 

Solution:

 

A, to improve the accuracy of the retainer

 

B, selection of small bearing clearance or pre-load is applied to the bearing

 

C, reduce the torque load, reduce installation errors

 

D, a good selection of oils and fats

 

2, continuous beep "buzz ......"

 

Analysis:

 

Motor load operation issued similar beep sound, and the the motor occurred axial abnormal vibration, open or shut down the "hum" sound

 

Specific characteristics:

 

The multiple lubrication bad state, winter, and both ends of the multiple ball bearing motor shaft aligning performance is bad, the axial vibration under the influence of an unstable vibration

 

Workaround

 

A, good grease lubrication performance

 

B, plus pre-load, reducing installation error

 

C, bearing small selection of radial clearance

 

D, improve motor bearing seat steel

 

E, strengthen the bearing-Mind

 

Note: the fifth point play a fundamental improvement in the role, with 02 minor groove curvature 01 major groove curvature.

 

3, paint rust

 

Analysis:

 

Motor bearing chassis Paints dry, out of the volatile chemical composition of corrosion to the end face of the bearing outer ditch, channel, so that abnormal sound channel corrosion

 

Specific characteristics:

 

Corrosion rusting of the bearing surface is more severe than the first side

 

Solution:

 

A, after the assembly of the rotor, casing, dry or drying

 

B, lower motor temperature

 

C, chosen to adapt to the paint Model

 

D ambient temperature to improve the placement of the motor bearings

 

Adaptation grease, fat cause corrosion, silicone oil, mineral oil, most likely caused by

 

F, vacuum dipping process

 

4, impurities tone

 

Analysis:

 

Caused by the cleanliness of the bearings or grease, to issue an irregular abnormal sound

 

Specific characteristics:

 

Voice occasionally even no there are no rules, sometimes big, sometimes small, multiple high-speed motor

 

Solution:

 

A, selection of good fats

 

Improve greasing Cleanliness

 

C, to enhance the sealing performance of the bearing

 

D, to improve the cleanliness of the installation environment

 

5, high-frequency, vibrating sound "da da ..."

 

Specific characteristics:

 

Sound frequency changes with the speed of the bearing parts of the surface waviness is the main cause of the noise.

 

Solution:

 

A, to improve the surface quality of the bearing raceway, reducing the amplitude of the waviness

 

B, to reduce bruising

 

The C correction clearance preload and tie, check the free end bearing operation, to improve the precision of the shaft and bearing installation method

 

6 heating

 

Specific characteristics:

 

The bearings running, the temperature is outside the scope of the requirements

 

Analysis:

 

A too much grease, the resistance of the lubricant increases

 

B, the clearance is too small to cause internal overload

 

C, installation errors

 

D, sealing equipment friction

 

E, bearing crawling

 

Solution:

 

A, use the correct grease appropriate dosage

 

B, correction clearance preload and tie, check the free end of the bearing functioning

 

C, to improve the bearing housing precision and installation methods

 

D, improved seal forms

 

7, bearing feel bad

 

Specific characteristics:

 

Felt bearing inside impurities, with the hand bearing rotating rotor block sense

 

Analysis:

 

A clearance is too large

 

B, inner diameter and shaft with improper

 

C, channel injury

 

Solution:

 

A clearance as much as possible to be small

 

B, the selection of the tolerance zone

 

C, to improve the accuracy and reduce the damage of the channel

 

D, grease selection

 

<>analysis and solution of Motor bearing abnormal sound

 

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