BrainFailure
Mechanical
- Apr 2, 2009
- 18
Howdy:
An engineer that no longer works at my company put a spec for Profile Bearing Length Ratio on a print at my company that I am not clear on. Is this a bad spec or do I just lack the education to interpret it?
Here is the spec:
tp = 50% TO 70% AT DEPTH P = .25 Rtm, RELATIVE TO REFERANCE LINE C = 5% tp
The first part makes sense to me: tp = 50% TO 70% AT DEPTH P = .25 Rtm
But I am baffled by the second part: RELATIVE TO REFERANCE LINE C = 5% tp
Its almost as though he is saying that the slice line depth is relative to 5% tp. How would you possible measure this? Would you have to trail and error slice lines until you got 5%, and then subtract .25 Rtm?
An engineer that no longer works at my company put a spec for Profile Bearing Length Ratio on a print at my company that I am not clear on. Is this a bad spec or do I just lack the education to interpret it?
Here is the spec:
tp = 50% TO 70% AT DEPTH P = .25 Rtm, RELATIVE TO REFERANCE LINE C = 5% tp
The first part makes sense to me: tp = 50% TO 70% AT DEPTH P = .25 Rtm
But I am baffled by the second part: RELATIVE TO REFERANCE LINE C = 5% tp
Its almost as though he is saying that the slice line depth is relative to 5% tp. How would you possible measure this? Would you have to trail and error slice lines until you got 5%, and then subtract .25 Rtm?
