This standard specifies the size series and tolerances of O-rings for pneumatic applications. This standard applies to the size series and tolerances of O-rings for pneumatic applications with a cross-sectional diameter not exceeding 2.65 mm. JB/T 6659-1993 Size series and tolerances of O-rings for pneumatic applications JB/T6659-1993 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T 6659-1993
O-shaped rubber sealing ring for pneumatic use
Dimension series and tolerances
Published on May 7, 1993
Ministry of Machinery Industry of the People's Republic of China
Implementation on January 1, 1994
Mechanical Industry Standard of the People's Republic of China
O-shaped rubber sealing ring for pneumatic use
Dimension series and tolerances
Subject content and scope of application
This standard specifies the dimension series and tolerances of O-shaped rubber sealing rings for pneumatic use. JB/T 6659-1993
This standard applies to the dimension series and tolerances of O-shaped rubber sealing rings (referred to as O-shaped rings) with a cross-sectional diameter of not more than 2.65mm for pneumatic use.
2 Reference standards
Priority numbers and priority number systems
O-rings for hydraulic and pneumatic applications
3 Shapes and character codes
3.1 Shape
O-rings are circular, as shown in the figure below.
Dimension series and tolerances
O-rings
3.2 Character codes
d——Inner diameter:
d——Sectional diameter. bzxz.net
4 Inner diameter, section diameter and limit deviation
O-ring dimensions and limit deviations shall comply with the provisions of the following table. Table O-ring inner diameter, cross-sectional diameter dimensions and limit deviations Approved by the Ministry of Machinery Industry of the People’s Republic of China on May 7, 1993 mm
Implemented on January 1, 1994
Limit deviation
1.00±0.05
JB/T6659—1993
1.22±0.06
1.50±0.06
1.80±0.06
2.00±0.08
2.65±0.09
Limit deviation
1.00±0.05
JB/T 66591993
1.22±0.06
1.50±0.06
1.80±0.06
2.00±0.08
2.65±0.09
Limit deviation
1.00±0.05
JB/T6659-1993
1.22±0.06
Note: “*” is the recommended cross-sectional diameter of the O-ring. 5 Dimension marking
Dimension marking shall comply with the provisions of Chapter 4 of GB3452.1. Additional Notes:
1.50±0.06
1.80±0.06
This standard is proposed and managed by the Pneumatic Technical Committee of the National Hydraulic and Pneumatic Standardization Committee. This standard was drafted by Wuxi Pneumatic Technology Research Institute and Wuxi Pneumatic Components Factory. The main drafters of this standard are Gao Linlin and Lu Juan. 4
2.00±0.08
2.65±0.09
People's Republic of China
Mechanical Industry Standard
Pneumatic O-ring
Dimension Series and Tolerance
JB/T 66591993
Published by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2, Shouti South Road, Beijing
Postal Code: 100044)
Format: 880×12301/16
Printing Sheet: 1/2Word Count: 8.000
First Printing in January 1994
First Edition in January 1994
Print Quantity: 1-500
Price: 5.00 Yuan
Mechanical Industry Standard Service Network: http=//www.JB.ac.cn6699
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