China Ningbo Bearings Manufacturer

How to Install Deep Groove Ball Bearing?

02.22.2012 in Blog by admin

Deep groove ball bearing is installed correctly is very important, following a few steps outline the main points of the installation of deep groove ball bearings:

1, the assembly force applied, not through the deep groove ball bearing roller or ball transfer, in order to avoid damage to deep groove ball bearings.
2, the preferred method of non-impact loading.
3, the need percussion, the way to the right.
4, for the required precision deep groove ball bearing drive, such as deep groove ball bearing spindle, there are often preload requirements. Because these deep groove ball bearing preload only under a reasonable, in order to achieve the nominal accuracy. For example, the lathe spindle, usually before and after the two thrust roller to the heart of deep groove ball bearings. After assembly, through both ends of the nut preload in order to achieve the requirements of the spindle runout. Preload is generally deep groove ball bearing factory-supplied parameters. But in the actual assembly process, not a good measure to be able to preload is to meet the requirements, the traditional rule of thumb is often the assembly workers install. Some structure, you can use pre-measured amount of preload deformation method. For example, a deep groove ball bearing thrust to the heart, preload of 20kg. We can deep groove ball bearing outer ring in the next, stand on the platform, then put on 20kg in the inner force. Force measurements inside and outside the ring before and after the change in height difference, generally through the lever dial indicator can be measured. Obtained after deformation, the structure design in a tightening gasket, the gasket is just pretension height difference before and after the change. In this way, tighten the nut to ensure death, preload volume remains unchanged. Change the past, workers Shoujin assembly method with integral deep groove ball bearing assembly
5, if there are deep groove ball bearing iron filings, burrs, dirt and other foreign matter into the, deep groove ball bearings will generate noise and vibration when in operation, or even damage the raceway and rolling elements. Therefore, installation of deep groove ball bearings, you must ensure that the mounting surface and installation of the environment clean.
6, deep groove ball bearings should be cleaned before you install the deep groove ball bearings coated with anti-rust oil, you must use gasoline or kerosene to clean carefully cleaned and then coated with clean, high-quality or high-speed high-temperature grease before installation. Cleanliness of deep groove ball bearing life and vibration noise is very large. But we want to remind you is: deep groove ball bearings are not fully closed fuel should be cleaned.
7, how to choose the grease lubrication of deep groove ball bearing operation and life there is a very important influence. Here to brief you choose the general principles of grease. Grease from the base oil, thickener and additives made of different types and different brands of the same type of grease performance varied widely, allowing different rotation limit, the choice is important to note. The performance of the grease base oil decisions. Generally low-viscosity base oil for low temperature, high-speed; high viscosity for high temperature, high load. Thickener is also related to lubrication, grease thickener of water determines the water resistance. In principle, the grease does not mix different brands, and even if the same kind of grease thickener, also because of the different additives adversely affect each other. Deep groove ball bearings in lubrication, oil coated the better it lubricated deep groove ball bearings, oil coated the better, this is a common misconception. Deep groove ball bearings deep groove ball bearings and grease will cause too much room over oil mixing, resulting in extremely high temperatures.
8, how to install and remove the hammer when installed directly face deep groove ball bearing and non-force side, should be briquetting, sleeve, or other deep groove ball bearing installation tool to make uniform force. If the mounting surface coated with oil, will install more smoothly. Such as interference with a large, deep groove ball bearings should be placed in mineral oil heated to 90 – 100 ℃ immediately after installation. Difficulty in dismantling, it is recommended that you use the removal tool to pull the inner ring, while carefully poured on the hot oil, deep groove ball bearing inner ring heat will expand, making it easier to fall off.
9, deep groove ball bearing radial clearance smaller the better? No, all of the deep groove ball bearings require minimum clearance work, you must choose the appropriate clearance conditions. Rolling deep groove ball bearing radial clearance group is divided into five groups -2, 0 group, 3 group, 4, 5 groups, followed by small to large clearance value, where 0 is the standard clearance group. Basic radial clearance group for general operating conditions, temperature, and commonly used conventional interference fit; at high temperature, high-speed, low noise, low friction to work under special conditions such as deep groove ball bearing Cheng Zeyi large selection of radial gap; of precision spindle, machine tool spindles with deep groove ball bearings, etc. should use a smaller radial clearance; for deep groove ball bearing roller can maintain a small amount of clearance work. In addition, separate type of deep groove ball bearings are indifferent clearance; Finally, deep groove ball bearing clearance work after installed, install the front than the original clearance is small, because the deep groove ball bearings to withstand a certain load rotation, there are deep groove ball bearing and load produced with the elastic deformation. Rolling deep groove ball bearing clearance and preload adjustment process is to improve the precision deep groove ball bearing swivel and carrying capacity, reduce vibration and noise transmission effective means. Assembly work should clarify the concept of deep groove ball bearing assembly clear the technical requirements, while also taking into account the deep groove ball bearing temperature control and good lubrication, the right way to use this process to ensure the ball rolling groove the quality of the bearing assembly.

Tags: Ball Bearing, Deep Groove Ball Bearing