High temperature HWT970310 high-speed bearing

970310 50 mm inner diameter, outer diameter of 110 mm, the width of the 27 mm. Dmn value is 1. 0x106mm. Referred to as the high-speed bearing of the rolling bearing in the r/min. Here the Dm uniform diameter for rolling bearing, n is the speed of the inner ring. In the practical use, high speed Dmn value of the imported bearing has reached to 3. 0x106mm. r/min。 High-speed bearing equipment collaboration and adjustment: 1. High-speed bearing collaboration and clearance for high-speed bearing should be in accordance with the requirements of high precision bearings and in accordance with the requirements of high temperature bearing so when considering its collaboration and clearance, to consider the following two points: ( 1) From normal temperature to high temperature when the scale of the change and hardness changes; （ 2) Under the high speed centrifugal force caused by the force system changes and shape changes. All in all, under the condition of high speed, high temperature, from collaboration and try to be adhere to the bearing clearance on the selection of the precision and operation performance, it is difficult. In order to ensure the bearing race after the deformation of equipment, KOYO 7319 ac Angle to touch the ball bearing interference amount of interference coordination do not get too big, and under the high speed centrifugal force and high temperature thermal expansion, or offset the normal stress on the surface of the collaboration. Or make collaboration face slack, thus interference amount necessary under the premise of considering these two factors carefully accounting, under the constant velocity of the useful interference quantity about high-speed bearing may be invalid. If the calculation result of this opposition is too big, General as long as there is this kind of situation only under ultra-high speed) , as long as adopt ring under lubrication and hydrostatic lubrication and lubrication method, and this scheme has the potential to bearing the DMN break 3 million mark. High temperature thermal expansion, or offset the normal stress on the surface of the collaboration. Or make collaboration face slack, thus interference amount necessary under the premise of considering these two factors carefully accounting, under the constant velocity of the useful interference quantity about high-speed bearing may be invalid. When considering the high-speed bearing clearance not only should consider the above-mentioned factors, and to consider the influence of the axial thermal elongation of clearance, for bearing under operation condition, namely has the best clearance in operating temperature, and the clearance is included, the outer ring groove ball center accurate registration form of the condition. Because of the high speed bearing to decline in relative sliding and internal resistance, SKF 71900 c/DB horn touch ball bearing had better not choose relative displacement of the inner and outer ring along the axial approach to adjust clearance of ball bearings. Considering bearing the collaboration interference quantity and clearance, be aware that the deformation of materials at high temperature becomes soft and simple features, and many times by the normal temperature to high temperature will be the possibility of permanent deformation caused by the temperature changes. 2. To host related parts demands high-speed bearing bearing address inversion system through the dynamic balancing precision, shaft with a hole equipment bearing parts should have higher precision, form and position accuracy of the scale of the general requirements, NACHI bearings especially coaxial degree of hole or shaft neck and shoulders straight degree, and considering these problems, it is necessary to notice the same bearing in high speed and high temperature elements. Spindle bearing system requires both high rigidity, asked for a light quality as much as possible, to overcome the opposition can adopt progress such as a drop surface roughness and surface strengthening methods such as the support stiffness, in order to progress using hollow shaft to reduce the system quality, etc. The previous: SKF under the high temperature resistant bearing an article: the advantages of high temperature resistant ceramic bearings and their performance