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The key to the purchase of agricultural machinery bearings

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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.
Here is an example:
1. The inner diameter of the bearing is 20 480 mm (22, 28, 32 is outside); the number obtained by dividing the inner diameter by 5 indicates.
2. The inner diameter of the bearing is above 500 mm (22, 28, 32). 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; This type of push.
3. The inner diameter of the bearing is indicated by a fixed number of 10 17 mm. For example, the bearing numbers 100, 201, 302, and 403; the inner diameter codes are respectively 00, 01, 02, and 03 at the right end; the inner diameters are 10, 12, and 15 respectively. , 17mm fixed number indicates.
4, the 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.
Usually the commonly used bearings are some type of specification; the code name is “0”; the public service level is “G” (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.
Here is an example of 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 light inside; its calculation method is 36 × 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 you purchase 7-digit other specifications Type bearing code can be analogized.

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