This standard specifies the series of standard dimensions (diameter, length, height, etc.) commonly used in the machinery manufacturing industry within the range of 0.01~20000mm, and is applicable to the main dimensions with interchangeability or serialization requirements (such as installation and connection dimensions, matching dimensions with tolerance requirements, and nominal dimensions that determine the product series, etc.). Other structural dimensions should also be adopted as much as possible. The dependent variable dimensions derived from the main dimensions and the dimensions between the processes in the process are not restricted by this standard. For the dimensions specified in the existing special standards, they can be selected according to the special standards. GB/T 2822-1981 Standard Dimensions GB/T2822-1981 Standard Download Decompression Password: www.bzxz.net
This standard specifies the series of standard dimensions (diameter, length, height, etc.) commonly used in the machinery manufacturing industry within the range of 0.01~20000mm, and is applicable to the main dimensions with interchangeability or serialization requirements (such as installation and connection dimensions, matching dimensions with tolerance requirements, and nominal dimensions that determine the product series, etc.). Other structural dimensions should also be adopted as much as possible. The dependent variable dimensions derived from the main dimensions and the dimensions between process steps in the process are not restricted by this standard. For the dimensions specified in the existing special standards, they can be selected according to the special standards.

National Standard of the People's Republic of Chinabzxz.net
Standardlneardimensioas
LDC389.171
GB2822—1
1This standard defines the series of standard sizes (diameter, length, serial number, etc.) commonly used in the machinery manufacturing industry within the range of 0.01 to 20000mm, and is applicable to the main sizes with interchangeability or serialization requirements (such as installation and connection dimensions, matching dimensions with tolerance requirements, and nominal dimensions that determine the product series, etc.). Other structural dimensions should also be used as much as possible. The dimensions between the processes of the internal variable dimensions derived from the main dimensions are not subject to the restrictions of this standard. For dimensions specified in special standards, they can be selected according to special standards. 2 The series specified in the range of 0.01→20000mm are shown in the table. The standard dimensions listed in the table are the priority numbers and their rounded value series selected according to GB321--80. The standard dimension series formulated by selecting the priority number rounded value series is represented by R. 3 When selecting series and individual sizes, standard sizes should be selected first in the preferred number series R. As long as the use requirements can be met, the basic series and their individual values ​​of the common comparison should be selected in the order of R10, R20, and R40. If the values ​​must be rounded, standard sizes can be selected in the corresponding Ka series, and the preferred order is Ra5, Ra10, Ra20, and Ra40. 4 In addition to the original series listed in the table, derived series derived from a basic series are allowed, and composite series are allowed. n.01~0.1mm
(1,025
Published by the State Administration of Standards on December 16, 1981
Implementation on October 1, 1982
GB 2822—81
1.0~10.0 mm
GB 2822 81
10~100mm
GB 2822 --81
[0～100u
GB 2822
2—81
1OO 10
GB2822--81
100020000
Note: The boldface characters in the Ra series are the rounded values ​​of the priority numbers of the corresponding R series. Additional remarks:
This standard was proposed by the First Ministry of Machinery Industry of the People's Republic of China. This standard was drafted by the Standardization Research Institute of the First Ministry of Machinery Industry. This standard was approved in December 1981.
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