3199_-_Bearings_and_Sleeves_-_RFI_Questions_and_Answers.pdf

Responses to Request For Information

W912BU-18-Q-0004

Question 1: Ceramalloy is an old trade name for shaft sleeves. Would it be possible to replace the old sleeves with a sleeve from Duramax like their NCB shaft sleeve?

Answer 1: It is recognized that Ceramalloy is an old name for shaft sleeves. The Duramax NCB is acceptable.

Question 2: What is the estimated size or magnitude of this project in dollars?

Answer 2: The intent of the request for quote is to obtain industry prices for the subject work. Please provide your best quote.

Question 3: Is this project for services (not construction)?

Answer 3: The work is to re-sleeve the shafts from the NAN vessel HAYWARD and provide a new shipset of four (4) bearings appropriate to the re-sleeved shafts.

Installation of the shafts and bearing will be conducted during the vessel’s scheduled dry dock period.

Question 4: Inquiries to ABS revealed they require the sleeves to be hydro tested and would like to observe the installation. Is this vessel still under ABS certification?

Answer 4: The vessel is ABS classed. The sleeved shafts and bearings are to be provided prior to the vessel entering a dry dock period early next calendar year where ABS inspections will be conducted.

Question 5: Does the scope of this project include changing the shaft seal from a stuffing box to a mechanical face seal?

Answer 5: No changing the shaft seal was not included in this scope of work.

Question 6: Will the propellers be removed by the yard prior to collection of the shafts or will removal be required by the bidders?

Answer 6: The shafts in the base contract do not currently have propellers on them.

In the event Option 1 is exercised, the shafts will be provided without propellers.