What are the factors affecting the service life of the rolling bearing?

Rolling bearing from the installation, and maintenance point of view, there are many external factors can affect the service life of bearing, such as improper installation, improper maintenance, etc. The bearing network ( Hereinafter referred to as:) To share our common factors which can affect the service life of bearing. 1, installation factors analysis, such as: conveyor roller bearing gland, bearing seal installation, is the important factors that affect the bearing performance. Bearing gland installation directly affect the radial clearance of the bearing. Bearing clearance is too small will cause bearing overheating, intensifying bearing wear, the wear-resisting performance of the bearing can not get to play. May also directly lead to bearing jammed. So in the gland before installing the correct use of highland barley paper gland position adjustment. Bearing seal ( Skeleton oil seal) Installation quality affect the corrosion speed of the bearing. Roller bearing work in water environment, seal damage in the process of installation, installation is not correct lead to bearing water with ferric oxide impurities, increase the corrosion rate of bearing components. Skeleton oil seal to avoid mechanical damage when installation, lip should be toward the lateral bearing at the same time. 2, bearing maintenance factors such as: roller conveyer maintenance points of daily maintenance and inspection, fault disposal operation. Bearing maintenance mainly lubrication, in guarantee under the condition of lubrication, even the most complex working environment, the service life of bearing can reach 5 to 10 years ( About 200 million ~ 300 million RPM) . However, in the condition of poor lubrication bearing of life will decline to 3 months or so, About 9 million RPM) 。 Below is for a variety of to the service life of oil bearing under way. From the table ( 1) You can see, in the continuous enough to wax to make to achieve a higher service life of the bearing. If oil supply not in time, in more complex environments, such as water, heat, dust bearing life can become very low. ( See table 1) Run check of bearing, mainly to detect the temperature of the bearing. Before and after the rolling line roller bearing temperature generally at about 4 o ℃. Even in the early bearing cage, roller wear high bearing temperature rise is not can't more than 43 ~ 45 ~ C. But along with further wear and bearing internal components of inclusion, bearing temperature rise to 4550 ~ c. The rolling element bearing become more uneven, appear even split and dislocation. Will happen once the split or dislocation, roller bearing temperature rise sharply, with smoking bearing seat, bearing jammed and bearing temperature measuring point temperature rise to 150-170 ℃. The bearing has been completely destroyed. To bearing can achieve a longer service life, in the early bearing wear, should be timely to clean and replace oil bearing, and to adjust the position of bearing gland shim thickness increase or decrease appropriately. In order to prolong the service life of bearing. 3, environmental factors, although the heavy plate production line of rolling bearing running environment is complex, such as overloading, high speed, more water, etc. , affect the service life of rolling bearing, we can still through continuous efforts to improve the site to create a more favorable environment for bearing ( Such as: bearing base plus cushion, bearing coated waterproof layer, etc. ) In order to prolong the service life of bearing. Rolling bearing is a kind of manufactured by special factory, highly standardized precision mechanical components. Influence on many economic and technical indexes of rolling bearing, the quality of life index is bearing the most direct, the most rapid and comprehensive reflection. Although people from design to the overall structural design have made accurate and comprehensive consideration, but owing to the negligence of uncertain or sometimes some external factors so that the bearing service life greatly reduced. Through a series of investigation, according to a lot of background material, the analysis of data and the analysis of the failure forms and so on, to find out the main causes of bearing failure, since it can be targeted improvement measures are put forward, prolonging bearing.