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KOYO bearing stable operation occurs when the solution of the temperature is too high

by:Waxing     2020-10-17
KOYO bearing in the process of running, sometimes between the bearing surface into the external hard particles or hard foreign body or abrasive dust on the surface of the metal, it can cause furrow is bearing abrasion, inside these hard foreign body through into the bearing lubrication medium, with the continuous operation of bearing, the local friction heat production, easy to cause the friction surface phenomena, local micro welding deformation and friction of partial melting may even happen, finally cause occlusion phenomenon. Bearing faults have defects and overload causes two factors, when the loads more than material strength limit fracture, fracture caused by parts called overload will occur in the process of bearing operation overheating organizations and local burns and other defects, defect caused by fracture. From the point of use should pay attention to the following: 1, KOYO bearing types of options: bearing type are generally according to the product of form a complete set of conditions of use and the load bearing for selection. So you have to learn the user's actual load is consistent with the selected bearing, if bearing can not meet the use requirements, should change model as soon as possible, but unless special products on the choice models generally do not have what problem. 2, the selection of the bearing clearance: when buying bearings generally just let us know in what type, grade, rarely on bearing clearance request, business people must ask bearing conditions of use, which the bearing rotating speed, temperature, tolerance is directly related to the selection of the bearing clearance. In theory at zero clearance noise and bearing life can reach the best state, but in actual operation considering the problems such as temperature, bearing clearance to 0 after assembly. 002mm- 0. 004 mm is better. 3, the choice of grease: the choice of grease are generally according to the requirements of the bearing rotating speed, heat resistance, noise and choose starting torque, etc, for the performance of various oil is very understanding. 4, the choice of bearing seal type: KOYO bearing lubrication can be divided into oil lubrication and grease lubrication. Oil lubricated bearing is generally choose form of bearing, grease lubricated bearing dust cover is generally selected or rubber seal seal. Dust cover suitable for high temperature or the use of good parts, seal two points contact seal and non-contact seal and contact seal dustproof performance is good but the starting torque, the sealing type starting torque is small, but there is no contact sealing performance is good. The phenomenon of KOYO bearing temperature ( 1) 。 ( 2) 。 Bright, light plate machine by hydraulic mechanical fault indicates the instrument temperature, bearing temperature signal relay action. ( 3) 。 The thermometer plate ( Inflating the thermometer) Black stitches overlap or more yellow and yellow needle. ( 4) 。 Bearing temperature fault signal. KOYO bearing temperature ( 1) 。 Bearing cooling water. ( 2) 。 Degradation of oil, the oil itself is not clean or run medium oil degradation, such as moisture in the oil increase can cause the acidity of the oil, can reduce oil lubrication, the bearing shell was corrosion, cause temperature rise of bearing. KOYO bearing temperature processing, as the bearing temperature rise first determines whether the misoperation, as did rise, should do the following treatment: ( 1) 。 Check the cooling water pressure, water flow and pipeline system is normal. If water is likely to be lower filter blockage, cannot be handled in a timely manner, to stop treatment, when confirm can work, then put into use. ( 2) 。 Should be to check if the governor oil pressure, oil pressure is low can lead to cooling water hydraulic valve closed. ( 3) 。 Check for different bearing, bearing and testing degrees whether there are abnormal. ( 4) 。 Take oil whether there is a change of color, sample observation and test to see whether metamorphism. If confirm the degradation new oil should be replaced downtime. ( 5) 。 Check the oil standard oil level is normal, if abnormal, check that the sump oil discharge valve is shut. If the matter, should fill oil, if is the sealant mat permeability oil, should stop processing. When we are in the use of KOYO bearing, if it is found that the temperature is very high, is to stop the equipment running, and find out its reason, and provide solution for processing according to the above, but may be due to the reason of bearing heating is different, so the solution is also different, so still have to treat, particular case is particular completed with the help of the technical staff.
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