INA spindle bearing axial how to correctly locate when installation

INA bearings short-lived or premature loss of accuracy, to a considerable extent is because there is no machine tool spindle bearings used in strict accordance with the requirements for installation. In order to guarantee long life of bearing, we should pay attention to the common problems in the installation. Because before installation must clean the bearing, bearing, before they go out in order to protect the surface of raceway and rolling element is not rust, between the raceway and rolling body injected with anti-rust oil or antirust grease. So, you must clean with clean gasoline and kerosene, besmear again clean and high quality or high speed high temperature lubricant can be used. However, some closed bearings and coated with lubricating machine tool spindle bearings, rust and grease is not need to be cleaned. Cleanliness of bearing life and the influence of vibration noise is very big. ( 1) Bearing special position: in some special cases, the shaft shoulder and fillet size not listed in the catalog installation dimensions, transition gasket can be used as the axial bearing. ( 2) Bearing spring retainer ring positioning: INA bearings under axial load is not big, the speed is not high, the shaft is shorter and the axis neck processed into threads are difficult circumstances, can be used for rectangular elastic gear ring cross section. This kind of method of loading and unloading is very convenient, location of small, simple. ( 3) Bearing thrust washer positioning: on the short shaft, shaft neck processed into thread with difficulty, the machine spindle bearing high speed, under the condition of axial load is bigger, can use washer, box washer on the shaft end face with more than two fixing screw, with a lock washer with or wire screw die, to prevent loosening. ( 4) Bearing set positioning: INA bearing rotating speed is not high, under the less steady radial load and axial load of spherical roller bearing, can decide on the optical axis with conical tight set of installation. Set to paraphrase nut and lock washer with positioning. Using the nut lock tight sleeve friction bearing positioning. Choose the correct grease. Grease made out of base oil, thickener and additive, different types and different type of same kind grease properties vary widely, allowing the rotation of the limit, and the performance of the grease is also determined by the base oil, thickener and relationship with lubrication performance, thickening agent, water resistance to the water resistance of the grease. The basis of generally low viscosity oil is suitable for low temperature, high speed; High viscosity is suitable for high temperature, high load. Different brands of grease can not be mixed, and even the same thickening agent of grease, will also bring bad influence each other on the basis of different additives. When the INA bearing inner ring installation, generally by the shoulder in a fixed bearing installation of bearing inner ring, generally by the position of the shoulder in a fixed bearing, while the other side with a nut and lock washer with archives circle, such as fixed or spring. Shoulder and axial fixed parts in contact with the bearing inner ring the size of the part, as shown in table bearing size all kinds of bearing installation dimensions. The position of bearing, while the other side with a nut and lock washer with archives circle, such as fixed or spring. Shoulder and axial fixed parts in contact with the bearing inner ring the size of the parts, can be listed according to the size of INA bearings form the installation dimensions of all kinds of bearings.