Honda Surface Roughness Callout (ex. 12.5S)

K

ksanders

Does anyone have any information regarding the Honda callout for surface roughness (ex. 12.5S) ? From what I can find, the 'S' is the same as Rmax, but I cannot find this documented anywhere. :confused:
 
R

ralphsulser

I have some info on Honda surface roughness that refers to JIS B 0601.
The S symblos are for finishing using inverted triangle symbols. 100S Max. = 0.1mm, which is one triangle, and 2 triangles =25S Max. which is 1/4 of one triangle.Three triangles =6.3S Max.which is 1/4 of 2 triangles
These are supposed to correlelate to the R max. or Ry.

Sorry I can't give you a better answer, but had this class about 3 years ago, and just have a copy of the hand out.Suggest you refer to JIS B 0601
 
C

cncmarine

I have seen "S" means specification.

Surface Finish = R , RN
 
K

ksanders

Thanks for the link. The cross reference helps clear things up.
 
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