Relevant knowledge of bearing coding rules
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| Time：2017.08.12 News Sources：Shandong Xinkaite bearing Co.,Ltd. Views：
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As we all know, there are many types of bearings, such as the corresponding bearing code is also more complicated, then about the bearing code and how the rules? Bearing basic code used to indicate the bearings internal, diameter series, width series and type, generally five digits.
About bearing code rules, detailed explanation is as follows:
1, bearing internal diameter with the basic code name, right from the first, H digits. The internal diameter of the bearing, usually d=20 to 480mm, is usually multiples of 5. These two figures indicate that the inner diameter of the bearing is divided by 5, such as 04 for d = 20mm, 12 for d = 60mm, and so on. For the Tianjin bearings with inner diameters of 10mm, 12mm, 15mm and 17mm, the internal diameter codes are 00, 01, 02 and 03, respectively. For inner diameter less than 10mm and greater than 500mm bearing, the indication method of diameter shall be referred to GB / T272 - 93.
2, bearing diameter series (that is, the same structure, the same diameter, the same bearings in the outer diameter and width of the series of changes) with the basic code name from the right third digit representation. For example, for centripetal bearings and centripetal thrust FAG bearing agents, 0 and 1 denote ultra light series; 2 denotes light series; 3 denotes medium series; 4 denotes heavy series. The size contrast between the series is shown below. Thrust bearings, in addition to the 1 for the special light series, and the rest of the same as the radial bearing.
3. The series of bearings (the series of changes in the width of the bearings of the same structure, diameter and diameter), with the basic code, fourth digits from the right. When comparing the column width line in Figure 13 - 4 Diameter series 0 series (normal series), most of the agents can not mark the bearing width number O in the code, but for the bearing and tapered roller bearings, width number 0 should be marked. The diameter series, code name and width series code are collectively called dimension series codes.
4, bearing type code with the basic code name, right from the fifth digit representation. |
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