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1, the retainer sound Hey Lee Hey Lee Cause Analysis:
More prone to keep rolling body vibration, shock generated, regardless of the type of grease may have to withstand the torque load or radial clearance
Solution:
A, to improve the accuracy of the retainer
Selection of clearance is small INA bearings or bearing preload
C, reducing the torque load, reduce installation errors
D, a good selection of oils and fats
2, continuous beep buzz
Analysis:
Motor load operation is issued a similar beep sound and abnormal vibration motor axial Om sound on or off
Specific features:
Multiple lubrication condition is not good, winter and ends with multiple ball bearing motor, the shaft aligning performance is not good, axial vibration under the influence of an unstable vibration
Solution
A, good grease lubrication performance
Preloaded reduce installation errors
C, optional radial clearance is small INA Bearing
D, improve motor bearing housings steel
E, strengthen the bearing-Mind
Note: The fifth point of the role played fundamentally improved, with 02 minor groove curvature, 01 major groove curvature.
3, paint rust
Analysis:
The dry motor bearing chassis Paints, out of the volatile chemical composition of corrosion of the end face of the bearing and outer groove and the channel, channel corrosion occurring after the abnormal sound
Specific features:
Is corrosion the INA bearing surface rust is more serious than the first surface
Solution:
A, the rotor, casing, dry or dried assembly
B, reduce the motor temperature
C, use the model to adapt to paint
D, to improve the ambient temperature of the motor bearings placed
E, with adaptation grease, fat of corrosion caused by silicone oil, mineral oil is most likely caused by
F, vacuum impregnation process
4, the impurity tone
Analysis:
Abnormal sound caused by the cleanliness of bearing or oil, issued an irregular
Specific features:
Sound sometimes even no, large and small there are no rules, multiple high-speed motor
Solution:
A selection of good fats
Improve greasing Cleanliness
C, enhance the sealing performance of the bearing.
D, to improve the cleanliness of the installation environment
5, the high-frequency vibration sound da da ...
Specific features:
Sound frequency varies with the speed of the bearing parts of the surface waviness is the main cause of the noise.
Solution:
A, to improve the bearing raceway surface quality, reduce the amplitude of the waviness
Reduce the bumps
C, modified clearance preload and cooperation, check the free end of the INA bearing operation to improve the accuracy of the shaft and the bearing installation method
6, heating
Specific features:
The bearings running, the temperature is outside the scope of the requirements
Analysis:
A, excess grease lubricant resistance increases
B, clearance is too small to cause internal load is too large
C, installation error
D, friction sealing equipment
E, bearing reptiles
Solution:
A selection of the correct grease, the appropriate amount
B, correction clearance preload and cooperation, check the free end bearing functioning
C, accuracy and installation methods to improve the bearing seat
D, improved sealing form
7, bearing feel bad
Specific features:
To feel hand bearing rotating rotor the INA bearings inside impurities sense of block
Analysis:
A clearance is too large
B, inside diameter and shaft with improper
C, channel Injury
Solution:
A clearance as small as possible
B, selection of the tolerance band
C, to improve accuracy and reduce the damage of the channel
D, grease selection
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 4T-336/332 NTN | 41.275 | 80 | 22.403 |
| 4T-11162/11315 NTN | 41.275 | 80 | 17.384 |