Home>Bearing knowledge>What are the substantial noises of FAG bearings?

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What are the substantial noises of FAG bearings?

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The substantial noise of the FAG bearing is that the bearing made with the modern processing skills will still occur; the FAG bearing itself has the resolution noise.
The substantial noise can be divided into three types: the rolling sound, the impact sound of the rolling body and the rolling sound;
(1) The rolling sound of FAG bearing and its control method The rolling track sound is a kind of slippery movement when the FAG bearing is working; its rolling body is rolled on the raceway surface; it is the unique feature of all rolling bearings. The fundamental sound. The usual bearing sound is the rolling sound plus other movements. The ball bearing's rolling sound is irregular; the frequency is above 1000Hz; its main frequency does not change with the speed; but its total sound pressure level The speed is accelerated to add a bearing with a large rolling sound; the sound pressure level of the raceway sound is reduced with the addition of the viscosity, and the bearing with a small rolling sound; the sound pressure level is increased to a viscosity of about 20 mm 2 /s or more. From the reduction to the increase. The greater the rigidity of the FAG bearing seat; the lower the total sound pressure level of the raceway sound. For example, the radial clearance is too long. The method of controlling the sound of the raceway is to use a low-noise FAG bearing, that is, a FAG bearing with a small waviness; carefully select the operating conditions. The raceway sound often affects the noise of the entire machine; Cutting the track sound can cut the noise of the entire machine.
(2) Impact sound of the rolling body and its control method Larger type of ball bearing or cylindrical roller FAG bearing under low-speed operation under pure radial load; because the centrifugal force of the rolling body is abrupt岢寤鞅3 芑蚬龅 Indigo 3. 鲈肷. But as the speed of rotation progresses; this movement will disappear. The control methods for the roll impact sound are: appropriate reduction of radial clearance; use of reasonable layout and data Bearings with a sturdy cage.
(3) The rolling sound of FAG bearing and its control method The rolling sound is the sharp metal conflict sound of cylindrical roller FAG bearing which may occur in all occasions; most of them occur in the larger type of bearing with smooth grease; Oil function is more likely to occur in smooth fat with deterioration; it does not occur when the oil is smooth. In addition, it is easy to attack in winter; when it receives pure radial load; it is easy to attack when the radial clearance is large; Different; it is easy to attack in a certain range of speed; it will be intermittent and intermittent. The special processing method of the outer ring raceway can avoid the appearance of rolling sound; if necessary, this FAG bearing can be used; Or properly reduce the radial clearance of the bearing; use the excellent smooth grease and improve the rigidity of the machine with the FAG bearing.
The currently used FAG bearings can usually be divided into tumbling FAG bearings and sliding FAG bearings. The working principle of tumbling FAG bearings and sliding bearings can be distinguished by the title; the conflict during rolling bearing operation is rollover conflict; and the sliding FAG bearing The slipping conflict occurs during the operation. The size of the tumbling conflict force depends on the precision of the production. The size of the conflicting force of the sliding FAG bearing depends mainly on the sliding surface of the bearing. The sliding FAG bearing usually has a self-smoothing function, sliding FAG. Bearings are classified into non-metallic sliding bearings and metal sliding FAG bearings according to the information. Non-metallic sliding bearings are mainly based on plastic bearings; plastic FAG bearings are usually made of engineering plastics with better functions, compared with professional manufacturers. Engineering plastics self-smoothing modification skills; through the fiber, special smoothing agent, glass beads, etc., the engineering plastics are self-smooth and reinforced to achieve certain functions; then the modified plastics are injection molded into self-smooth plastic bearings. The current global comparison of professional manufacturers are Germany's IGUS and China's CSB. Division. The most widely used metal sliding bearing is the three-layer composite FAG bearing; this FAG bearing is usually based on carbon steel plate; after sintering, a layer of spherical copper powder is sintered on the steel plate; then on the copper powder layer. Sintering a layer of 0.02mm PTFE smoothing agent, the first effect of the center layer of spherical copper powder is to strengthen the connection strength between the steel plate and PTFE; of course, it also plays a certain load and smooth effect during operation.

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