According to the data from the "Production and Sales Demand Forecast and Transformation and Upgrading Analysis Report of China's Bearing Manufacturing Industry", the total industrial output value of China's bearing manufacturing industry from 2009 to 2013 has been increasing year by year. In 2013, the industry achieved a total industrial output value of 249.363 billion yuan, a year-on-year increase of 12.92%.

Analyzing the data in the past five years, it is found that the sales revenue of China's bearing manufacturing industry has also been increasing year by year from 2009 to 2013. In 2013, it achieved sales revenue of 249.12 billion yuan, a year-on-year increase of 11.80%.

my country's bearing industry is developing rapidly, bearing varieties from small to large, product quality and technical level from low to high, industry scale from small to large, and a professional production system with basically complete product categories and a more reasonable production layout has been formed.