Backing bearings are particularly thick outer ring of the rolling bearing, when used to form a group to be mounted on the shaft of a stationary support rollers. Pressure on the work roll through the intermediate roller and the support roller is passed to the system to the rack through the saddle. Generally used for multi-roll cold rolling mill equipment can also be used for other occasions, such as straightening machine.
2013年9月17日星期二
According to "Special Equipment Safety Supervision Act
Shandong Jining Urban expand "small crane" production points are set remediation
Source: www.jndcc.com Author: Date :2013 -7-22 16:29:24 Hits: 28
"Small crane" attributed to special equipment, related to the safety of people's lives, more dangerous. Jining City, Shandong Province Bureau of Quality Supervision recently smitten on the area of ??some "small crane" making points tapered bearing egulation to crack down on illegal production of "small crane." In view found that some illegal "small crane" making points as follows widespread doubt: First, the owners do not have the qualifications lifting machinery production, but no depict drawings and testing equipment, the mere own Slewing bearing making lifting machinery; Second to save costs, the use of state banned the use of scrap automobile chassis production of "small crane", through painting from scratch, creating a brand new "small crane"; three rolling machine with operators for protection, not only out of production rolling machine, and secretly steal production of "small crane."
According to "Special Equipment Safety Supervision Act" rule, special equipment production units need special equipment supervision by the State Council administrative department promised, promised to obtain special equipment production qualification certificate, there is compatible with the production of technical personnel, skilled workers, production conditions and testing equipment, production process, it is necessary to have a sound management principles and responsibilities of criteria before they are allowed special equipment production activities. Such "small crane" rule fails to produce production point production, there is a big security risk, disrupted the market order, severe damage to the interests of consumers.
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