1.2.1.3 Double row deep groove ball bearing As shown in Fig. 1,21, this kind of bearing has stronger radial bearing capacity than single row deep groove ball bearing. The load distribution between columns is controlled by the geometric accuracy of the channel. In addition, this bearing has similar performance characteristics with single row deep groove…
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1.2.1.2 Single row deep groove ball bearing with ball mounting notch As shown in Fig. 1.20, the bearing is machined with a notch on one side of the flange of the inner and outer rings, which can be loaded with more steel balls than the general single row deep groove ball bearing, so it has…
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1.1 Introduction to rolling bearings History of Bearing After the invention of the wheel, people found that it was much easier to use rolling to move objects on the same surface than sliding. Even though it was later found that lubrication can reduce the work required for sliding objects, the work consumed by rolling is…
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Deep groove ball bearing tolerance standard The position and size of the inner diameter zone are different from the general reference hole. The inner diameter of (G and E) or (0 and 6) rolling bearing is a reference hole with a special tolerance zone position, and the tolerance zone of the inner diameter of the…
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The composition and working principle of deep groove ball bearings Bearings can be divided into two types: sliding bearings and rolling bearings, and deep groove ball bearings are the most used, widely used, and most commonly produced type of rolling bearings. Deep groove ball bearings are relatively simple in structure and easy to mass produce,…
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Bearing seal material Nitrile rubber: Nitrile rubber is a universal sealing material. It is a rubber synthesized from acrylonitrile and butadiene, and has good resistance to the following media. Most mineral oil and grease based on mineral oil General fuels, such as gasoline, diesel and light civil fuel Animal oil, vegetable oil NBR seals also…
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Bearing super precision technology Ultra-precision technology is not only used in the bearing industry, it is also used in engines nowadays, and other precision machinery and instruments are also beginning to use this technology. What is bearing super precision Bearing super-precision process is a kind of feed motion to realize a finishing method of micro-grinding.…
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Annealing and normalizing of bearing production process Annealing is also called simmering, and the code is Th. It is to heat the steel to Ac1 or Ac3 above (30~50℃), keep it for a period of time, and then slowly cool it (usually with furnace cooling). Normalizing, also known as open flame, code Z, is to…
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Adjustment measures for problems after bearing installation Do not directly hammer the end surface and non-stressed surface of the bearing during installation. Press blocks, sleeves or other installation tools should be used to make the bearing evenly stressed. Do not install through the transmission force of the rolling elements. If the installation surface is coated…
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Ring and rolling element materials Rings and rolling elements are usually made of high-carbon chromium bearing steel. Most bearings use CCr15. For bearing rings with larger cross-sections and rolling elements with larger diameters, CCrl5SiMn with good hardenability is used. High-carbon chromium bearing steel is an integrally hardened steel, and its surface and core can be…
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Bearing ring material and performance requirements Material of bearing rings and rolling elements: Rings and rolling elements are usually made of high carbon chromium bearing steel. Most of the bearings use SUJ2 in the JIS steel grade. SUJ3 is used for large bearings. The chemical composition of SUJ2 has been standardized as a bearing material…
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Bearing chrome steel VS stainless steel materials When looking at the advantages of chromium steel and stainless steel as bearing materials, it was found that they not only have an anti-rust effect. And chrome steel is the most common bearing material. It is harder than stainless steel, so it can last longer. However, its performance…
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