Introduction
Rubber O-rings are a very popular and significant rubber sealing component that are essential to many different sectors and uses. The American Society of Mechanical Engineers (ASME) created the AS568 standard, which offers a single set of standards for the dimensions of rubber O-rings, to guarantee dimensional consistency and interchangeability. Linde Polymer will provide you a quick overview of the history, benefits, and several sectors where the AS568 standard is used.
The background and formulation of the AS568 standard
In order to guarantee the interchangeability and uniformity of O-rings supplied by numerous providers, the AS568 standard was created to address the problem of size variations. The ASME organization ultimately developed the AS568 standard, which is now the most widely used rubber O-ring size specification globally, following much investigation and debate.
AS568 standard size range and numbering system
A broad range of O-ring diameters are covered by the AS568 standard to satisfy different application requirements. The AS568 standard states that the inner diameter (ID) and cross-sectional diameter (CS) of an O-ring determine its size. There are 26 distinct ascribing numbers defined by the AS568 standard, and each one is associated with a certain size range. A smaller size is indicated by fewer dashes, and a greater size is indicated by more dashes.
Some data of AS568
|
AS 568 |
NOMINAL (REF.) |
STANDARD O-RING MEASUREMENTS IN |
METRIC O-RING MEASUREMENTS IN |
||||||||
|
ID |
OD |
CS |
ID |
± |
CS |
± |
ID |
± |
CS |
± |
|
|
001 |
1/32 |
3/32 |
1/32 |
0.029 |
0.004 |
0.040 |
0.003 |
0.74 |
0.10 |
1.02 |
0.08 |
|
006 |
1/8 |
1/4 |
1/16 |
0.114 |
0.005 |
0.070 |
0.003 |
2.90 |
0.13 |
1.78 |
0.08 |
|
011 |
5/16 |
7/16 |
1/16 |
0.301 |
0.005 |
0.070 |
0.003 |
7.65 |
0.13 |
1.78 |
0.08 |
Advantages and applications of AS568 standard
Adopting the AS568 standard has several benefits. It first makes sure that O-ring sizes supplied by various providers are consistent, which facilitates O-ring replacement in various systems and equipment. Furthermore, the AS568 standard's broad acceptance lowers inventory and procurement costs, which significantly lessens the requirement for bespoke sizes. The AS568 standard also gives engineers and designers additional options and convenience, which facilitates their decision-making process when choosing the right O-rings for their designs.
Application of AS568 standard in various industries
There are countless businesses and areas that make extensive use of the AS568 standard. For instance, AS568 standard O-rings are utilized in the automobile sector to seal important components including engines, transmissions, and hydraulic systems. AS568 standard O-rings are widely used in the chemical and petroleum industries to seal equipment, including storage tanks, valves, and pipelines. O-rings that meet AS568 specifications are utilized in the food and pharmaceutical industries to guarantee equipment and container sealing. Moreover, AS568 standard O-rings are utilized in a variety of industries, including aerospace, military, and medical equipment.
In conclusion
Rubber O-ring diameters are standardized by the AS568 standard, which encourages uniformity and interchangeability across vendors. Widespread use of it lowers expenses and gives engineers and designers more options and convenience. The vast variety of industries and sectors covered by the application of AS568 standard ensures the sealing performance and dependability of systems and equipment. It should be acknowledged, nevertheless, that not all applications will find the AS568 standard to be sufficient. It can be required in some unique circumstances to utilize O-rings with non-standard sizes or unique materials. To make sure the right O-ring is chosen in this situation for the particular application, contact, and conversation with the manufacturer or supplier are required.
The formulation of the AS568 standard standardizes and standardizes the size of rubber O-rings, providing a unified reference for various industries. Its wide range of applications and advantages make it easier for engineers, designers and users to select and use O-rings suitable for their applications, thus improving the performance and reliability of equipment and systems. The continuous development and promotion of the AS568 standard will continue to promote the advancement of rubber O-ring technology and meet changing industrial needs.
