Need a flexible shaft coupling for submerged seawater application
Need a flexible shaft coupling for submerged seawater application
(OP)
Similar to those shown here: https://heli-cal.com/cm/Products/Flexible-Couplings/Home.html
However these do not meet torque requirement: 400 in-lb in both directions.
Shafts are both 3/4" with standard keyways.
I understand that 17-4PH stainless is a good material choice. Most similar couplings seem to be 303/304SS as standard which does not hold up well to corrosion from what I can gather. I am having trouble finding a manufacturer. This one has couplings that meet my specs but they are 303: http://ondrivesus.reachlocal.net/couplings_beam.htm
Submerged time will be several weeks at a time with cleaning in between.
Suggestions?
However these do not meet torque requirement: 400 in-lb in both directions.
Shafts are both 3/4" with standard keyways.
I understand that 17-4PH stainless is a good material choice. Most similar couplings seem to be 303/304SS as standard which does not hold up well to corrosion from what I can gather. I am having trouble finding a manufacturer. This one has couplings that meet my specs but they are 303: http://ondrivesus.reachlocal.net/couplings_beam.htm
Submerged time will be several weeks at a time with cleaning in between.
Suggestions?





RE: Need a flexible shaft coupling for submerged seawater application
Maybe 13-8PH, but more likely a Ni alloy, 625 might be a good option.
Contact existing producers and see if they will do a custom.
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Plymouth Tube
RE: Need a flexible shaft coupling for submerged seawater application
Mike Halloran
Pembroke Pines, FL, USA