Bearing lubrication methods can be divided into two kinds of grease and oil lubrication. Full bearing function, it is important to use reduction and the use of mesh, using lubrication method.
Grease is a base oil, thickener and additives lubricants. When selected, you should choose very suitable for the conditions of use Run needle bearing grease marks are different, the performance will also have a very different choice, you must be careful.
Bearing grease are commonly used calcium-based grease, sodium grease, calcium sodium based grease, lithium grease, aluminum grease and molybdenum disulfide grease and so on.
Bearing grease fill quantity to fill the space inside the bearing 1/2-1/3 as appropriate. Speed should be reduced to 1/3. Excessive grease will rise higher.
1, bearing maintenance: Bearing cleaning: Remove needle bearing under repair, the first recorded appearance of the bearing to confirm remaining amount of lubricant, the lubricant used after sampling inspection, wash bearings. As a cleaning agent, general use gasoline, kerosene. Removed to the bearing cleaning, cleaning of coarse and fine cleaning, were placed in a container, first put the metal mesh bottom, so that no direct contact with the container bearing the dirt. Coarse cleaning, if the bearing rotation with dirt, will damage the bearing rolling surfaces, should be noted. In the crude oil washing, use a brush to remove grease, adhesive material, generally clean, into sperm washing.
2, bearing maintenance: for as long as possible to maintain the bearing in good condition original performance, to maintenance, repair, accident prevention in the first place in order to ensure reliability of operation, improve productivity, economy. The best operating conditions and maintenance of appropriate machinery operating standards, regular basis. Including monitoring operating condition, supplement or replace the lubricant removed periodically checked. The maintenance operation issues a rotation of the bearing needle sound, vibration, temperature, status, and so the lubricant.
3, bearing maintenance and judgment: In order to determine whether the removed bearing can be used to clean the bearing after the inspection. Check the raceway, the raceway, with the surface state, cage wear, bearing clearance increases and there is nothing to fall dimensional accuracy injury exception. Non-separable type of small ball bearings, the inner ring with one hand the level of support, rotating outer ring to confirm whether smoothly. Sperm washing is to clean the oil needle bearing in the side of the rotating, while carefully cleaned. In addition, cleaning the oil must be kept clean.
Operating temperature selection grease, the main targets should drop point, oxidation stability and low temperature performance, drop point generally used to evaluate high-temperature performance, needle bearings should be lower than the actual operating temperature dropping point 10-20 ℃. Synthetic grease dropping point temperature should be below 20-30 ℃.
Select the load bearing grease, heavy duty should be selected on the penetration of small grease. Except when working under pressure Penetration small, but also has high film strength and extreme pressure properties.
Environmental conditions selected grease, calcium grease easily soluble in water, suitable for drying and less water environments.



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