In 2019, my country's per capita water resources accounted for about 1961.4 cubic meters, which was only a quarter of the world average. Therefore, it is particularly necessary to improve the utilization rate of water resources in China. Sewage treatment technology is an important means to reduce environmental pollution and promote the recycling of water resources. According to statistics, as of 2019, my country needs to treat 222.46 million tons of sewage every day. Such a huge amount of sewage treatment has put a huge test on the reliability and operating cost of sewage treatment equipment. Take the small and medium sewage pump as an example. During its entire life cycle, reducing operation and maintenance costs and energy consumption costs have become the primary task of management personnel for the production and use of sewage treatment equipment.

In response to these two challenges, SKF has provided a perfect solution through self-developed sealed single-row angular contact ball bearings: reducing energy consumption, reducing frictional heat generation/low grease loss. In addition, SKF sealed single-row angular contact ball bearings and SKF open bearings of the same size are very easy to exchange and easy to operate. There is no need to significantly replace the parts in the pump, which can reduce downtime and labor costs due to equipment replacement. For industrial pumps, reliability, long life and energy saving are essential. In order to meet these performance requirements, a large number of high-end pump manufacturers have chosen to use SKF sealed single row angular contact ball bearings and have achieved success.