Daqo bearing abnormal sound factors

As bearing of major parts of the machinery and equipment, our daily maintenance is inevitable, then let us feel headache thing is: "bearing the Laos during operation is pronounced as abnormal voice" on this point, we summarized some factors。
Daqo bearing abnormal sound factors
1, Grease impurities;
2, Lack of lubrication (oil level is too low, save properly, oil or grease seal leakage).
3, Bearing clearance is too small or too big (manufacturer);
4, Bearing in the mixed with sand or impurities such as carbon, abrasive effect;
5, Bearing in mixed with water, acids or paint and other dirt, corrosion effect;
6, Bearing seat hole clip flat (distortion hole of the roundness is not good, or a hole is not straight).
7, And the bottom surface of the bearing pad iron uneven (resulting in a hole deformation and crack of bearing seat).
8, Bearing hole with sundry (residues have chip, dust, etc.);
9, Seal eccentric (run into adjacent components and friction);
10, Bearing by additional load (bearing axial awful a tight, or on a shaft with two fixed end bearing);
11, With the bearing and the shaft is too loose (shaft diameter smaller or set set not tighten);
12, Bearing clearance is too small, too tight when rotating (set sets tighten too far).
13, Bearing noise (roller end face or steel skid);
14, The axial thermal elongation is too large (axial additional load bearing is statically indeterminate);
15, Shoulder is too large (touch bearing seals and friction);
16, Shoulder holes of the block is too large (bearing the seal of touch to distort);
17 And labyrinth seal clearance is too small (and shaft friction);
18, Lock washer of tooth bending (encounter bearings and friction);
19, Left the position of the oil ring not appropriate (the flange cover and friction);
20, Ball or roller with pit (when installed with a hammer bearing caused by);
21, Bearing noise (a source outside interference);
22, Bearing heat discoloration and deformation (use spray gun to heat sealed bearing caused by);
23, Shaft is too coarse to make actual cooperation too tight (noise) bearing temperature is too high or causing;
24, Small diameter of hole (cause bearing temperature);
25, Bearing hole diameter is too large, the actual fit is too loose (bearing high temperature, outer ring skid);
26, Bearing hole bigger (non-ferrous metal bearing hole was enlarged, or because of the thermal expansion);
27, Maintains a fracture.
28, Bearing raceway rust.
29, Steel ball, rolling wear (grinding is unqualified or products are bruised).
30, Ring raceway is unqualified (manufacturer).
Supplier
BMB Bearings ia a precision bearing enterprise specializing in the production of double row angular contact ball bearings, double row deep groove ball bearings, and single row angular contact ball bearings. The company is a end bearings manufacturer enterprise producing double row angular contact ball bearings in China. Its models cover 3200 series, 3300 series, 3000 series, 3800 series, 3900 series, etc. The product accuracy grades are: P0, P6, P5, P4, and the products are widely applicable.
The company also maintains an extensive inventory of superior roller bearings, ball bearings, Deep Groove Ball Bearings, Selfaligning ball bearing, Angular Contact Ball Bearings, Thrust Ball Bearings and much more.