National Institute of Standards & Technology, Acquisition & Assistance Div.,100 Bureau Drive Stop 3572, Bldg. 301, Rm B117, Gaithersburg, MD 20899-3572

36 -- SUCTION PRESS ROLL FOR ROTO/CYLINDER PAPER MACHINE SOL 53SBNB967035 DUE 012999 POC Patricia Duggan, Contract Specialist, (301) 975-8007; Trena Bercaw, Contracting Officer, (301) 975-6324. WEB: NIST Contracts Homepage, http://www.nist.gov/admin/od/contract.htm. E-MAIL: NIST Contracts Office, Contract@nist.gov. The National Institute of Standards and Technology (NIST) intends to negotiate with LG Industries of Wagontown, PA on a sole source basis for the design and manufacture of a replacement Suction Press Roll for a roto/cylinder paper machine. LG Industries is the designer and manufacturer of the existing Suction Press Roll. The design, physical, and performance characteristics of the Suction Press Roll shall include the following: The Suction Press Roll shall be designed to fit on 56" bearing centers. The vacuum exhaust shall be located on the front of the unit with the outlet facing down 12" outside the front bearing center and 10" below the center of the roll. All controls for rotation and deckle width adjustment of the roll suction box shall be accessible from the front of the roll. A drive shaft shall be provided; it shall be fitted to the rear roll head. The shaft shall be 3.500" (+.000/- .001) diameter with a keyway 7/8 by 7/16 a minimum length of 6". The end of the drive shaft shall be located 17-11/16" outside of the rear bearing center. The roll shell shall be centrifugally cast 1N bronze composition, 14"OD x 11.219" ID x 33" drilled face, with an overall length of 39". Shell shall be covered with 1" thick rubber to a finish diameter of 16" and have a hardness of 30 P&J. Drilled holes shall be 3/16" diameter in the shell and 11/64" diameter in the rubber. The pattern shall be spiral with an open area of 24% (+/-) in the shell and 20% (+/-) in the rubber cover. The shell shall be designed for a 300 PLI load. The roll heads shall be constructed of forged steel, grade A181. The rear head shall have provisions for connecting a drive. The bearings shall be heavy duty spherical roller bearings sized for a minimum B-10 life of 100,000 hours. The bearings shall be mounted in cast iron housings with grease lubrication protected by labyrinth type seals. The suction box shall be of heavy fabricated 304 stainless steel construction, with a counterbalance design. The suction box shall have a 4" wide opening. The trunnion that supports the front of the suction box shall also carry the air and water out of the suction roll and shall be sized for optimum velocity. The suction box shall be adjusted radially with a set of worm gears. Each worm gear shall be a complete gear (not a sector) to permit repositioning in the event of worn or broken teeth thus minimizing the need for replacement. The seal strips shall be a geometric designed to fit deckle packing material, air loaded with minimum pressure to prevent scoring of the roll shell. The strips shall be carried in brass channels mounted on the fabricated suction box. The seal strips shall be lubricated with water across the entire face by an enclosed lubricated shower to reduce friction and increase sealing. The end deckles shall be a geometric designed to fit deckle packing material, spring loaded, and mounted in brass heads which shall be adjustable while the roll is running from a hand wheel located on the front side of the Suction Press Roll. The deckles shall beadjustable for suction box widths from 30" to 24". The silencing strip shall be a water lubricated, geometric designed to fit packing material, located in the trailing edge channel. Trailing channel shall be stainless steel 304. There shall be one internal lubricating shower, of fog type spray design, configured to lubricate all packing material housed inside the roll. Packing material shall be a synthetic or naturally occurring polymeric material having the following physical properties: (1) Water absorption (long term aging 6 months at 212 F) volume shall not decrease by more than .6%, weight shall not increase by more than 1.6%, P&J hardness shall be unchanged, and the "D" Durometer loss shall not exceed 4; (2) Coefficient of friction (ASTMD 1894 Modified) shall be static .26/dynamic .19 (+/- 15%, standard deviation for the dynamic static).; (3) Coefficient of linear thermal expansion shall be .000006 in/in F (ASTMD 696); and (4) Material hardness shall be 0 to 1 P&J at ambient temperature, 0 to 1P&J at 166 F and 0 to 1 P&J at 212 F. Loose base will not be required for this roll. However, the front roll bearing housing and vacuum exhaust outlet shall be designed to fit the existing loose base on the roto/cylinder paper machine located in room A267, Building 231, at NIST in Gaithersburg, MD. A shipping container shall be provided for the roll for protection during shipping and storage. The container shall completely enclose the roll and shall be sturdy enough to withstand loads placed on top of it equal to its own weight plus the weight of the Suction Roll. The base of the container shall be designed to permit picking up with materials handling equipment. The replacement Suction Press Roll design must be approved by the Government before manufacture can begin. All machined surfaces shall be epoxy coated. The final grind shall not be part of this requirement. The required delivery is 30 weeks after receipt of order, FOB destination, Gaithersburg, MD. The government intends to issue a fixed price purchase order for this requirement. The proposed contract action is for supplies or services for which the Government intends to solicit and negotiate with only one source in accordance with FAR 13.106-1(b). Interested persons may identify their interest and capability to respond to the requirement or submit quotations to NIST, Attn: Patricia Duggan, Building 301, Room B117, 100 Bureau Drive Stop 3572, Gaithersburg, MD 20899-3572. This notice of intent is not a request for competitive quotations. However, all quotations received by 3:00 PM Eastern Time January 29, 1999, will be considered by the Government. A determination by the Government not to compete this proposed acquisition based upon responses to this notice is solely within the discretion of the Contracting Officer. Posted 01/19/99 (W-SN289209). (0019)

Loren Data Corp. http://www.ld.com (SYN# 0279 19990121\36-0002.SOL)