High speed running IKO clutch bearing noise reduction methods

High speed clutch bearing noise reduction methods, high-speed bearing is mostly IKO bearings, mainly used for high speed rotating load lighter, require clutch bearings and high precision, high speed, low temperature rise, low vibration and service life. So how to install the bearing? 1. IKO bearing installation should be clean, clean room, bearing should be carefully selected, bearing with baffle passes through grinding, and in keeping the baffle on inner and outer contour under the premise of baffle parallelism should be controlled below 1 um. 2. Bearing should be cleaned before installed and when cleaning inner ring ramp up, flexible hand induction, no stagnation, air-dried, into the specified amount oil, if oil mist lubricating oil should be in a small amount of oil mist; 3. Bearing installation should use specialized tools, force uniform, do not knock; The main technical indicators: 1. Bearing precision index: more than GB / 307. 1 - 2 94 P4 level precision. High-speed performance indicators: dmN value of 1. 3 to 1. 8x 106 /min　　3. The service life ( On average) :> 1500 h installation tool suite includes 36 impact ring, 3 sleeve and a rebound hammer, these components are mounted on a portable toolbox. Often for high speed motorized spindle bearing parts installed in pairs, is the key to the high-speed motorized spindle surface grinding machine fittings. I don't know how to install the bearing or improperly installed, even brutal installation, in the early failure of IKO bearing accounts for 16%. Bearing installation tools designed to quickly and accurately TMFT 36 clutch bearing installation, will be installed at the same time to minimise the risk of damage to the bearings. Impact, a reasonable combination of the ring and sleeve, can effectively through the interference fit of the force bearing ring to deliver installation, in order to minimize the risk of injury bearing raceway and rolling body. Using vibration absorption or isolation devices using vibration absorption or isolation devices to reduce the noise or noise isolation bearing, bearing can get good effect, but this often pay a high price in terms of economy, sometimes make institutional change, cooling condition, or easy to rust, use appropriate comprehensive into consideration, only after other steps taken still cannot achieve low noise index after use of this law. The simplest example is under the high speed instead of the thrust bearing and thrust under the centripetal ball bearings, can be in the position to full of antirust oil absorption plastic outer coat, take cover or general IKO bearing the thrust bearing in permission, cylindrical hole in them or set in the same plastic covers, but control when rotating friction with adjacent parts or interference. This method has a certain silencing effect. Another example is in the middle of the bearing with a hole between join a set, can decrease the rotation system to bearing vibration on the power, but this requires allocate appropriate, or have the opposite effect may occur. An example again is a sound insulation cover using acoustic noise will happen in the bearing system is completely closed or closed up as soon as possible. Inside of the noise reduction cup for glass fiber or polyurethane foam plastic, the inner surface of 0. 6 - LMM thickness of steel plate, surface uniform phi 1. 2 - 1. The area of the 5 mm small hole, hole accounted for about 25% ~ 30% of the entire inner surface of outer surface for 2 mm thickness of steel plate. Here the glass fiber or foam plastics are applied to eliminate the high frequency noise, the inner surface of the belt holes used to eliminate the low frequency noise, and outside surface of thick steel plate were used to isolate the noise gaiden. Change the host method of corresponding parts rotating clutch bearing noise is not very sensitive to load, but the speed is very sensitive, in conditions allow, use the method of reduce speed and increase torque to achieve the same job, but it reduces the noise. ( Example] To reduce the noise of the pump system, the original used in motor speed to 1430 r/min flow to 10 l/min pump, instead of the speed of 710 r/min and match with more specifications of the pump and motor after you get the same flow rate, oil pump, oil pump and oil pump motor bearing itself IKO bearing noise is significantly reduced, but take up space, a complete set of institutions cost also increased.