bearing area ratio
bearing area ratio
(OP)
the requirement:
Ra 2 to 4 microiches
Rz 40 micorinches max
Rp 8 microinches max
bearing ratio, shall be 70 - 90% when measured at a depth P = 0.25 Rz.
where/how i interpret the attached measurement about bearing area ratio?
thanks.
Ra 2 to 4 microiches
Rz 40 micorinches max
Rp 8 microinches max
bearing ratio, shall be 70 - 90% when measured at a depth P = 0.25 Rz.
where/how i interpret the attached measurement about bearing area ratio?
thanks.





RE: bearing area ratio
2. Ask whoever issued 'the requirement' for references or sources of instruction.
Mike Halloran
Pembroke Pines, FL, USA
RE: bearing area ratio
another day in paradise, or is paradise one day closer ?
RE: bearing area ratio
BEARING, bears, supports. not ball BEARING.
RE: bearing area ratio
One problem with that conjectural interpretation is that the result is not really a percentage of area, since you would be working with what is effectively a cross section profile of the surface, so the result would be a percentage of lengths.
One other problem is that the instrument you are using does not produce a profile plot.
Maybe it does so internally, and does all the measuring internally, and reports the measurement you seek as a number, but I can't tell.
... because you haven't even done us the simple courtesy of identifying the instrument you are using, so we could seek out the manual and read it for ourselves.
Mike Halloran
Pembroke Pines, FL, USA
RE: bearing area ratio
thanks.