· China's car tire prices fell overall in February
In February 2016, the China Car Tire Dealer Price Composite Index was 69.60, down 0.11% from the previous month and down 2.34% from the same period last year. The main reason for the decline in the overall price level of car tires is: the price performance of Bridgestone market fell, Pirelli, Goodyear, Youke Homa, Margies market price performance, Dunlop, Chaoyang, Jiatong, Ma, Michelin The performance of Hankook market is stable. Since February, the price of natural rubber and crude oil has rebounded, which will push the raw material cost to rise in the short term. The tire price has an upward trend, but the demand side is not strong. The price is expected to stabilize in March. Car tire dealer price index 1. Explanation of indicators The PCR-Distributor Price Index (PCR-DPI) is a measure of the relative number of car tire dealers' price levels over time, which comprehensively reflects the wholesale price of car tires purchased by dealers from an agent. The level of change. 2. Statistical range The index (PCR-DPI) currently selects 11 car tire brands such as Michelin, Pirelli, Chaoyang, Goodyear, Hankook, Youke Homa, Jiatong, Ma, Margis, Bridgestone, Dunlop, etc. It is 16 inches. The data comes from provinces with large sales of tires such as Guangdong, Jiangsu, Zhejiang, Hebei, Shandong, Shanghai and Henan. 3. Survey method The original data of the PCR dealer price is sent directly to the survey outlets by “fixing the brand, setting the market, and setting the timeâ€. 4, the base time The base period for the calculation of the PCR dealer price index sequence in May 2011. 5. Index calculation method The first step is to calculate the average price for the actual wholesale price of the 16-inch all-pattern and layer-level tires of the selected brand. In the second step, according to the 16-inch specifications, the current sales situation in the market is given corresponding weights; according to the price appeal of the 10 brands in the market and the relative market share, the corresponding weights are given. In the third step, the comprehensive price is calculated based on the calculated price and weight.
Rubber sealed deep groove ball bearings have rubber seals installed on one or both sides and are pre-lubricated with grease. These bearings often Also, snap rings are sometimes used on the outside edge. rubber sealed deep groove ball bearings with their simple design, high resistance and low-maintenance, while many different retainers are available, pressed steel cages are most commonly used.
The primary function of the seal is to protect the bearing from contaminants, it is important to keep the bearing clean when you take it out of the packaging so you don`t contaminate it just by handling it. Another function is, of course, is to make sure the bearing retains the lubricant. because of the rubber lip that`s making contact with the inner ring, we have the rubber rubbing on the inner ring of the bearing, increasing the friction in the bearing.
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Sealed type: With one seal (-RS) on one side or two seals (-2RS) on both sides. Sealed bearings are supplied with a contacting lip seal that excels in protecting the bearing from liquids and other foreign contaminants. The inherent design creates friction, drag, and in turn heat; factors that require consideration in high speed applications.
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