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(2) The processing process of the solid cage: the processing of the solid cage is different depending on the raw materials or the gross damage. Before the machining, it can be divided into the following four blank types. The whole processing process is: Material, pipe material, forgings, castings----car inner diameter, outer diameter, end face, chamfering----drilling (or pulling holes, boring)----pickling----final inspection-- --Anti-rust, packaging----into the warehouse. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
Second, the installation process of the rolling bearing:
Rolling bearing parts such as inner ring, outer ring, rolling body and cage, etc., after passing the inspection, enter the installation workshop for installation. The process is as follows: part demagnetization, cleaning → internal and external rolling <ditch> road scale grouping → Set → view clearance → riveting cage → final inspection → demagnetization, removal → rust prevention, packaging → into the product warehouse (boxing, shipping).
The characteristics of the fourth section of the rolling bearing compared with the sliding bearing, has the following advantages:
1. The friction coefficient of the rolling bearing is smaller than that of the sliding bearing, and the transmission efficiency is high. Generally, the friction coefficient of the sliding bearing is 0. 08-0. 12, and the friction coefficient of the rolling bearing is only 0. 001-0. 005;
2. The rolling bearing has been standardized, serialized and generalized, suitable for mass production and supply; it is very convenient to use and repair.
3. The tumbling bearing is made of bearing steel and is heat treated. Therefore, the tumbling bearing not only has high mechanical properties and long service life, but also can save the relatively expensive non-ferrous metal used for manufacturing the sliding bearing;
4. The internal clearance of the rolling bearing is very small, and the machining precision of each part is high, so the working precision is high. Together, the rigidity of the bearing can be added by preloading. This is very important for precision machinery;
5. Some tumbling bearings can accept both radial and axial loads, thus simplifying the layout of the bearing support;
6. Because the rolling bearing has high transmission efficiency and low heat generation, it can reduce the consumption of smooth oil, and the smooth protection is more labor-saving;
7. Rolling bearings can be conveniently used on uranium in any orientation in space.
However, all things are divided into two, rolling bearings also have certain defects, the first is:
1. The bearing of the rolling bearing is much smaller than the bearing of the same volume. Therefore, the radial dimension of the rolling bearing is large. Therefore, in the case of accepting a large load and the case where the radial dimension is small and the layout demand is compact, such as the crankshaft of the internal combustion engine. Bearing), more choice of sliding bearings,
2. The rolling bearing has large oscillation and noise, and the uniqueness is particularly obvious in the later stage of operation. Therefore, in the occasion where the precision is high and the oscillation is not allowed, the rolling bearing is difficult to perform, and the sliding bearing is generally better. The rolling bearing is uniquely sensitive to foreign objects such as metal chips. Once the foreign matter enters the bearing, it will cause intermittent large oscillations and noise, which will also cause early damage. In addition, the rolling bearing may be susceptible to early damage due to metal clip impurities. Sex. Even if there is no early damage, the life of the rolling bearing has a certain limit. In general, the life of the rolling bearing is shorter than that of the sliding bearing.
However, the rolling bearing is superior to the sliding bearing, each has its own advantages, and each has its own suitable application. Therefore, the two cannot be completely replaced with each other, and each of them is carried out in a certain direction, expanding the scope of the individual. However, because of the rolling bearing Outstanding strengths, there is a trend of latecomers. At present, rolling bearings have been developed into the primary support type of machinery, and the use is becoming more and more extensive.
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Source: China Bearing Network Time: 2014-04-07