I must have overlooked that info; I had thought I mentioned both points previously.
The specific O-ring chosen (Buna-N for oil applications) is http://www.mcmaster.com/#9452k359/=ry4pmr
In regards to the chamfer, as mentioned above, a 15° chamfer with an OD of Ø172 seemed to be the ticket...
So it is safe to have...
A groove diameter of Ø6.471" (using standard gland depth of 0.111" off Ø170mm bore)
A O-ring ID of 6.234" (AS568A-259)
And this will mate to a Ø170 bore?
I hate to sound ignorant and almost like throwing darts and hope it sticks, but I'm really in the dark with these O-rings. Thanks to everyone for your help; this has been a great learning experience.
I'm afraid I'm a little confused as to why to drop down to a -259 O-ring that has an OD of...
Fair enough. We'll shoot to alter the housing for the larger diameter of the chamfer to be Ø172mm (45° x 1 chamfer as opposed to the original 30° x 1) to clear the OD of the O-ring.
AS568A-260:
Cross section = Ø0.139"
ID = 6.484"
OD = 6.762"
I've also changed the gland diameter to be 6.5118"...
As I understand it from reading other replies in here, the assembly tool is needed as a result of the 30° chamfer on the housing that it is being pressed into.
Thanks again for everyone's help. Sorry for the delayed response; I've been running all over with different projects.
I've changed the design to utilize a Ø0.139" cross-section O-ring (AS568A-260 specifically). I must say that I am confused how the OD of the groove does not meet/intersect...
Thanks for your responses. If you can't tell, this is a first-time learning experience with O-rings. The designs generally require seals; this specific design required custom-sized seals to meet the larger bearing size and ended up leaking. As a result, this design came into motion to use an...
Hello all.
I'm finishing up a design that will be utilizing an O-ring for sealing the OD of a spacer to the ID of a bearing support housing. This will be the final seal point for oil within the gearbox along with rotary seals at the ID of the spacer to seal to the spinning shaft. The last bit...
