Cylindricity
Cylindricity
(OP)
I am so much confused with Cylindricity tolerence.
I have cylinder drawing Inside Dia : 8.00 + .004
And Cylinricity(inside dia) is : 0.006 in drawing.
Cylindricity must be less than size tolerence ?
If Actual measurement is : Max dia: 8.0056
Min dia: 7.9997
And Cylindricity is: 0.002
Is this acceptable ?
Please help me..
Thanks in advance
I have cylinder drawing Inside Dia : 8.00 + .004
And Cylinricity(inside dia) is : 0.006 in drawing.
Cylindricity must be less than size tolerence ?
If Actual measurement is : Max dia: 8.0056
Min dia: 7.9997
And Cylindricity is: 0.002
Is this acceptable ?
Please help me..
Thanks in advance





RE: Cylindricity
Now, take a look at your actual measuring data, the max dia 8.0056 is larger the upper limit size 8.004 and the min dia 7.9997 is smaller than the lower limit size 8.000, all of them are out of tolerance, the actual (local) size must be within the maximum and minimum limits of the size dimension.
SeasonLee
RE: Cylindricity
If it is ±, then the tolerance is actually a total of .008, making the cylindricity amount legal. (There is also an exception to the rule for non-rigid parts...)
John-Paul Belanger
Certified Sr. GD&T Professional
Geometric Learning Systems
http://www.gdtseminars.com