Issues to be noted in the selection and storage of dynamic and static pressure spindles

Dynamic and Static Pressure Spindle is a type of sliding bearing that uses a pressure pump to forcefully inject oil into the extremely fine gap between the bearing and the shaft

1. Selection of Dynamic and Static Spindle: Deep and shallow cavity structure dynamic and static bearings are suitable for high-speed, light load machine tool spindles such as tool grinding and external cylindrical grinding. The orifice type annular throttling deep and shallow chamber dynamic and static bearings are suitable for the spindle of machine tools, such as centerless grinding, roll grinding, etc., and the speed of these devices is in the moderate middle range. Cylindrical pin type internal feedback dynamic and static bearings: suitable for situations with large load and speed changes on machine tool spindles. Cone bearings: suitable for high-speed inner cone grinding heads, inner groove grinding heads, etc

2. Precautions for using the dynamic and static pressure spindle: After one year of normal use of the equipment, the second spindle oil and coarse and fine filter element should be replaced. When replenishing oil for normal use, it needs to be filtered through three layers of fabric before being added. The belt pulley and grinding wheel of the dynamic and static pressure spindle must be loaded and unloaded while the pump station is working. It is carried out with the dynamic and static pressure spindle in a state where the lubricating oil is floating, so as not to damage the dynamic and static pressure spindle and bearings 3. Storage of Dynamic and Static Pressure Spindle: It can only be stored in environments where the relative humidity of the air does not exceed 60% and the temperature changes are not significant. The dynamic and static pressure bearings can be stored in their original packaging to prevent them from aging for several years. Storage is when the dynamic and static pressure bearings are sealed or wrapped in dust covers. After long-term storage, the characteristics of the lubricating grease filled in the dynamic and static pressure bearings will decrease

The storage location of the dynamic and static pressure spindle should also be able to avoid vibration and shaking. The equipment is not placed in its original packaging and should be stored better to avoid erosion or contamination of the dynamic and static pressure shafts. The rolling bearings of large equipment should be flat and support the inner and outer rings as much as possible, and both the inner and outer rings should be supported as much as possible. If placed vertically, due to the heavy weight of the inner ring and roller components, the inner ring and inner ring are relatively thin, which can easily cause equipment deformation