How to buy agricultural machinery bearings

Source: China Bearing Network Time: 2013-07-05

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Bearings are the support parts of various mechanical rotating shafts or movable parts; widely used in agricultural machinery, tractors, diesel engines, electric motors, threshing and other agricultural machinery. Buying bearings commonly used bearing code; but the bearing code is more complicated; if the agricultural machine operator grasps Identify the rules of the bearing code; the purchase is simple.
Usually the commonly used bearings are some type of specification; the code name is â€œ0â€; the public service level is â€œGâ€ (normal level); usually the first part of the bearing can be written; therefore, the code number is mostly indicated by the 7 digits of the fundamental code. An example is given to the meaning of the bearing code: Example 7002136 (135 series diesel engine shaft main bearing); its root code is identified from right to left. The "36" two-digit number indicates internal light; its calculation method is 36 Ã— 5 = 180 mm, " 1" indicates that the diameter series is extremely light, "2" indicates that the type is cylindrical roller bearing, "00" indicates that the bearing layout mode has no ribs on the outer ring, and "7" indicates that the width series is narrow. If the machine chooses 7-digit other The specification type bearing code can be pushed in this way.
For the purchase of bearings, refer to the inner diameter of the bearing; the inner diameter of the bearing is at the top of the top of the code, and the second digit indicates the inner diameter of the bearing and the non-standard inner diameter; the difference is not an integer or an integral multiple of 5. Optional; now an example: 1 bearing inner diameter below 9 mm with the right end of the list of the first digit practice scale. For example, bearing number 18; its inner diameter is 8 mm. 2 bearing inner diameter at 10 17 mm is indicated by a fixed number. For example, bearing number 100 , 201, 302, 403; the inner diameter code is the right end two digits are 00, 01, 02, 03; the inner diameter of the fixed number of 10, 12, 15, 17 mm respectively indicates that the .3 bearing inner diameter is 20 480 mm (22 , 28, 32 outside); the number of 5 obtained by the inner diameter scale indicates that the inner diameter of the bearing is above 500 mm (22, 28, 32) is indicated by the fraction; the denominator indicates the inner diameter; the numerator indicates the scale series, type and layout of the bearing. For example, bearing 30031/560; its inner diameter is 560 mm; others and so on.

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