- Deep groove ball bearings
- Cylindrical roller bearings
- Aligning ball bearings
- Stainless steel bearings
- LNSERTED bearings
- Ball introduced
- Plain Bearings
- Needle Roller Bearings
- Angular contact ball bearings
- Thrust Roller Bearings
- Spherical roller bearings
- Thrust Ball Bearings
- Rolling mill bearings
- Tapered Roller Bearings
- Plastic bearings
- Linear motion bearings
| Rolling reason for the noise generated | |||
| 点击数：4405 日期：2014/4/4 | |||
| Rolling sound 1, import bearings Scroll to NSK bearing noise is a bearing itself, the paper switched from [58 bearing network]http://58bearing.com, reproduced please indicate the source. That is the inherent noise bearing; another is the noise that bearing installed, and has nothing to do with noise bearing itself. By listening to the sound of some of the problems inherent noise.A): rolling road sound "of various bearings and rolling friction sound (cylindrical roller bearing) is the rolling bearing fixed voice." raceway sound is produced by the elastic properties of the rolling body and rolling contact time, when the bearing rotates, the rolling body raceway rolling and making a continuous and smooth voice; not normal rolling friction sound can be issued a "creak, creak" like uncomfortable metal friction abnormal sound, not issued such sounds good lubrication. So no problem in the general case, only the noise increased after the need to pay attention to.B) and bearing manufacturing related noise: noise here including the cage and vibrato, cage noise occurs mainly in ball bearings and tapered roller bearings, when the bearing rotates as the holder of the vibration and maintain frame and the rolling body collision will sound. This sound is cyclical. Vibrato (bearings) is a certain frequency sound, is due to the raceway surface have larger waviness Induced vibration generated. C) using the noise caused by improper: there are to many kinds of bearings. When the NTN bearing raceway surface or surface of the rolling body is bruised, indentation, rust, it will produce noise and vibration have certain cycle. When the bearing dust intrusion will produce noise in operation in the dirt. This noise is non periodic, also accompanied by vibration, the sound size is not fixed, sometimes not 2, the bearing vibration FAG bearing vibration of bearing failure effect is obvious. For example: peeling, indentation, rust, crack, wear will be reflected in the bearing vibration detection, so the bearing vibration measuring device special (frequency analyzer and vibration meter) can measure the size of the vibration, the frequency distribution can be inferred the abnormal vibration, the measured values, and different bearing conditions of use or the sensor installation location, therefore require prior to each machine measurement are analyzed and compared to determine the criterion 3, the temperature of the bearing Usually the SKF temperature of the bearings with running slowly increased, 1 to 2 hours later to reach a steady state. The normal temperature of the bearing is due to the heat capacity, the quantity of heat, the machine speed and load and different. If the lubrication, improper installation, bearing temperature will rise rapidly, there will be abnormal high temperature, then we must stop and take the necessary preventive measures 4, the lubricant Lubrication has an important effect on the rolling of TIMKEN bearing fatigue life and friction, wear, Wen Sheng, vibration, no normal lubrication, the bearings will not work. That analysis of the cause of the damage of the bearing, around 40% of bearing damage and poor lubrication. Therefore the bearing lubrication good are the effective measures for reducing friction and wear. In addition, the lubrication also plays a role in heat dissipation, anti rust, sealing, easing impact. To ensure the lubricant is not expired, the selection should be correct. Lubrication bearing harvesters of oil and grease lubrication two, big gear box lubrication oil selection by GL-5 80W90 gear oil lubrication by MoS2 in general; lithium grease lubrication, increasing torque converter stepless speed change device must be used under grease lubrication Mobil XHP222 or better |
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| On a message：What constitutes Rolling Next information：Application of domestic ceramic ball bearings and market analysis | |||