Bearing abnormal sound factors of knowledge - bearing

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, a lot of technical personnel also know if there is any difference between a number of factors can cause bearing runtime, but all is not enough comprehensive summary, China bearing network according to the understanding of the bearing use, summarizes the factors bearing abnormal sound, hope to be of help. 1, grease impurities; 2, lack of lubrication ( The oil level is too low, save undeserved cause oil or grease seal leakage) ; 3, bearing clearance is too small or too large, Factory) ; 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; Six, bearing were hole clip flat ( Hole hole roundness is not good, or distortion is not straight) ; 7, and the bottom surface of the bearing pad iron uneven ( Lead to a hole deformation even crack of bearing seat) ; 8, bearing hole with sundry ( Residues have chip, dust, etc. ) ; 9, seal eccentric ( Touching the 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 ( The smaller the diameter of the shaft or set set not tighten) ; 12, bearing clearance is too small, rotates too tight, Set set of tighten too far) ; 13, bearing noise, The roller face or steel skid) ; 14, the axial thermal elongation is too large, Axial additional load bearing is statically indeterminate) ; (15, shoulder is too big The bearing seal and friction) ; 16, shoulder holes of the block is too big ( Send the bearing seal touch misrepresenting) ; 17 and labyrinth seal clearance is too small ( With the shaft friction) ; 18, lock washer of tooth bending ( The bearings and friction) ; 19, left the position of the oil ring is not appropriate ( The flange cover and friction) ; On 20, ball or roller pressure pit ( Installed with a hammer bearing caused by) ; 21, bearing noise ( There are foreign source 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, Cause the bearing temperature too high or noise) ; 24, small diameter of hole, Cause high bearing temperature) ; 25, bearing hole diameter is too large, the actual fit is too loose ( Bearing temperature is too high - - - - - - 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, Factory) 。