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31300 Series Tapered Roller Bearing
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ISUTAMI BEARINGS

31300 Series Tapered Roller Bearing

31300 Series Tapered Roller Bearing
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
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

tapered Roller Bearing 31300 Series

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.
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