1, Any requirements on the mounting surface and the installation location of deep groove ball bearings?
Yes. If the scrap iron, burrs, dust and other impurities from entering in deep groove ball bearings, the bearing in operation will produce noise and vibration, or even damage deep groove roller and steel balls. Therefore, before the installation of deep groove ball bearings, you must make sure that the installation surface and environment clean.
2, Do deep groove ball bearings need cleaning before installation?
Deep groove ball bearings are coated with antirust oil, you need to carefully clean them with cleaner gasoline or kerosene, and then coated with a clean high quality or high temperature lubricant before installation. Influence of cleanliness on the service life of the bearing and vibration noise was considerable. But what we want to remind you is: sealed bearings do not need cleaning and refueling.
3, How to choose the right grease?
Lubrication on the operation and life of has a very important impact on the deep groove ball bearings. I briefly describe the general principles of selection of deep groove ball bearing grease. Grease is made of base oils, thickeners and additives. Grease functions of different types and same type with different brands vary, be sure to pay attention to duing to corresponding speed limit is different. Grease performance mainly determines by the base oil. Low viscosity base oil is suitable for low temperature, high speed situation, while high viscosity oil is suitable for high temperature, high-load situation. The thickener is also related to the lubrication function. Water resistance of the thickeners determines the water resistance of the grease. In principle, grease with different brands cannot be mixed, and, even if grease with the same kind of thickeners, also has a negative impact on each other due to different additives.
4, The more grease,the better when lubricating the deep groove ball bearings?
When lubricating bearings, the more grease,the better, this is a common misconception. Too much grease in bearings and bearing interior will cause excessive mixing of oils and fats, which results in extremely high temperatures. Number of bearing lubricant filling is covered with 1/2~1/3 bearing internal space,reduced to one-third when high speed.
5, How to install and disassemble the deep groove ball bearings?
Do not hammer directly on the surface and non-bearing surface of deep groove ball bearing when installation. Let bearing be an average force with block, sleeve or other installation tools (Tools) . Never install using the ball driving force. If the mounting surface is coated with lubricating oil, it will make the installation more smooth. If combined with interference is greater, put bearing in mineral oil, heated to 80~90℃ and install as soon as possible. Strictly control oil temperature not exceeding 100 ° c to prevent the effect of tempering hardness reducing the impact and recovery. Removing when you encounter problems, we recommend that you use the removal tool to pull on the inner ring at the same time carefully pouring hot oil, and heat makes the bearing inner ring expanding so that making it more prone to shedding.