Know the groove size of rubber O-rings and how to choose the size of O-rings.

Groove size: groove bottom diameter, groove width, groove depth and other data. To determine the size of O-rings, if it is a static seal, it can usually be determined as follows: groove bottom diameter/1.04 (stretching rate calculated as 4%) = O-ring inner diameter; groove depth*1.2 (compression rate calculated as 20%) = O-ring wire diameter; considering that the cross section of the O-ring will deform and expand after compression, the groove width is usually about 1.3 times the wire diameter. Of course, it depends on the working conditions of the seal, and it can only be said that this is generally the case. There are also dynamic seals, rotary seals, reciprocating seals, axial seals, radial seals, etc.

Groove size: groove bottom diameter, groove width, groove depth and other data. Determine the size of the O-ring. If it is a static seal, it can usually be determined as follows: groove bottom diameter/1.04 (stretching rate calculated at 4%) = O-ring inner diameter; groove depth*1.2 (compression rate calculated at 20%) = O-ring wire diameter; considering that the cross section of the O-ring will be deformed and spread after compression, the groove width is usually about 1.3 times the wire diameter. Of course, it depends on the working conditions of the seal, and it can only be said that this is generally the case. There are also dynamic seals, rotary seals, reciprocating seals, axial seals, radial seals, etc. 

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