ISUTAMI tapered roller bearings 31300 Series belong to the separated type bearings, and the inner and outer rings of the bearings have conical row raceways.When the bearing is running, if there is rhythmic knocking or bumping sound, it may be caused by spalling, indentation, or improper installation of other parts of the cylindrical roller bearing.In the running process of conical roller bearing, the sound of "gu-lu, gu-lu" may be caused by poor seal of the bearing, dirty lubricating oil and too large clearance of the bearing.The squealing sound of "squeaking" may be caused by dry lubricant or lack of lubricant.If the bearing has the sound of "rustling", it may be that the tapered roller bearing is not clean, the internal mixed with debris, sand, dust and other debris caused by.The inner ring of the bearing expands excessively under heat, and the bearing and seal parts rub against the relevant parts.Striking the bearing or other parts causes the bearing to deform.The fixing sleeve of the bearing is too tight or loose;The large size of the bearing block may cause the outer ring of the bearing to rotate in the bearing block, which may cause the bearing to produce noise and abnormal sound.The cause of vibration of tapered roller bearing is basically the same as that of bearing noise and abnormal sound, and there is a strong correlation between them.However, the vibration frequency outside the audio range will not cause noise and abnormal sound.
ISUTAMI tapered roller bearings 31300 Series belong to the separated type bearings, and the inner and outer rings of the bearings have conical row raceways.When the bearing is running, if there is rhythmic knocking or bumping sound, it may be caused by spalling, indentation, or improper installation of other parts of the cylindrical roller bearing.In the running process of conical roller bearing, the sound of "gu-lu, gu-lu" may be caused by poor seal of the bearing, dirty lubricating oil and too large clearance of the bearing.The squealing sound of "squeaking" may be caused by dry lubricant or lack of lubricant.If the bearing has the sound of "rustling", it may be that the tapered roller bearing is not clean, the internal mixed with debris, sand, dust and other debris caused by.The inner ring of the bearing expands excessively under heat, and the bearing and seal parts rub against the relevant parts.Striking the bearing or other parts causes the bearing to deform.The fixing sleeve of the bearing is too tight or loose;The large size of the bearing block may cause the outer ring of the bearing to rotate in the bearing block, which may cause the bearing to produce noise and abnormal sound.The cause of vibration of tapered roller bearing is basically the same as that of bearing noise and abnormal sound, and there is a strong correlation between them.However, the vibration frequency outside the audio range will not cause noise and abnormal sound.
31300 Series Tapered Roller Bearing Size Chart
Bearing
|
Principal Dimensions (mm)
|
Mass
|
No.
|
d
|
D
|
T
|
B
|
C
|
kg
|
31304
|
20
|
52
|
16.25
|
15
|
11
|
0.175
|
31305
|
25
|
62
|
18.25
|
17
|
13
|
0.26
|
31306
|
30
|
72
|
20.75
|
19
|
14
|
0.39
|
31307
|
35
|
80
|
22.75
|
21
|
15
|
0.52
|
31308
|
40
|
90
|
25.25
|
23
|
17
|
0.72
|
31309
|
45
|
100
|
27.25
|
25
|
18
|
0.95
|
31310
|
50
|
110
|
29.25
|
27
|
19
|
1.2
|
31311
|
55
|
120
|
31.5
|
29
|
21
|
1.55
|
31312
|
60
|
130
|
33.5
|
31
|
22
|
1.9
|
31313
|
65
|
140
|
36
|
33
|
23
|
2.35
|
31314
|
70
|
150
|
38
|
35
|
25
|
2.95
|
31315
|
75
|
160
|
40
|
37
|
26
|
3.5
|
31316
|
80
|
170
|
42.5
|
39
|
27
|
4.05
|
31317
|
85
|
180
|
44.5
|
41
|
28
|
4.6
|
31318
|
90
|
190
|
46.5
|
43
|
30
|
5.9
|
31319
|
95
|
200
|
49.5
|
45
|
32
|
6.95
|
31320
|
100
|
215
|
56.5
|
51
|
35
|
8.6
|
31321
|
105
|
225
|
58
|
53
|
36
|
9.65
|
31322
|
110
|
240
|
63
|
57
|
38
|
12
|
31324
|
120
|
260
|
68
|
62
|
42
|
15.3
|
31326
|
130
|
280
|
72
|
66
|
44
|
19.1
|
31328
|
140
|
300
|
77
|
70
|
47
|
23
|
31330
|
150
|
320
|
82
|
75
|
50
|
28
|
31300 Series Tapered Roller Bearing Features
Bearing rolling sound is cone roller bearing in all occasions may occur, if the harsh metal friction sound, mostly occurs in the grease lubrication of the larger type of bearings, but in the base oil performance of the poor grease is more likely to occur, generally does not occur when the oil lubrication.In winter, it is easy to occur, when bearing pure radial load, it is easy to occur in the case of large radial clearance, and with the difference of model size, it is easy to occur in a specific speed range, both continuously and intermittently.Adopting special processing method for outer ring raceway can prevent the occurrence of rolling sound. If necessary, this kind of high-temperature bearing can be selected, or the radial clearance of the bearing can be reduced appropriately, the excellent grease can be used, and the rigidity of the matching parts with tapered roller bearing can be improved.
The choice of low noise bearings, this depends on the purchase of high quality conical roller bearings, generally good bearings are made of high material steel, with high density, high tolerance characteristics.From the bearing application link to try to eliminate noise, is in the above lubrication grease, must choose good lubrication materials, can play a multiplier effect.Avoid resonance with main engine, avoid resonance sensitive speed.This point requires professional installation and debugging to avoid resonance problems.If other methods fail, additional measures of sound insulation and muffler are taken, some sound control equipment is installed, etc.