Duramax Marine Water-Lubricated Bearings and Shaft Sealing Systems

For over 25 years, Duramax® Marine has supplied water-lubricated rubber bearings for Military propulsion shaft applications. Our fully molded sleeve, flanged and stave type bearings are tested and manufactured to stringent Military specifications. In our bearing test facility, new polymer and bearing materials are tested for load carrying capability, coefficient of friction and system wear life. This commitment to product testing and development helped Duramax® Marine become the world leader in water-lubricated rubber bearing technology.

DURAMAX® MARINE BEARINGS

Duramax® Marine water-lubricated rubber bearings are manufactured with specially formulated nitrile rubber and are molded to provide shaft clearances in accordance with U.S. Navy and Bureau of Ships specifications. These bearings possess low coefficient of friction and inherent vibration-dampening qualities and are non-polluting. Standard bearing sizes are available from stocking distributors and sales agents worldwide, or you can order custom materials and sizes to meet special applications.

JOHNSON CUTLESS® SLEEVE BEARINGS

  • Precision machined, Naval brass shell with nitrile rubber lining meets MIL-B-17901B (SH) Class II bearing specifications
  • Over 100 inch and metric sizes in stock, with custom sizes available upon request

JOHNSON CUTLESS® NON-METALLIC SLEEVE BEARINGS

  • Corrosion-resistant non-metallic shell with nitrile rubber lining
  • Over 100 inch and metric sizes in stock, with custom sizes available upon request

JOHNSON CUTLESS® FLANGED BEARINGS

  • Centrifugally cast Naval brass shell with integral flange and nitrile rubber lining, meets MIL-B-17901B (SH) Class II bearing specifications
  • Solid and split types available: over 70 sizes in stock with custom sizes available upon request

JOHNSON CUTLESS® DEMOUNTABLE RUBBER STAVE BEARINGS

  • Tough, molded nitrile rubber bearing staves allow bearing change-out without shaft or propeller removal
  • Bearing sizes available up to 36 inch shaft diameter – over 2,000 installations operating worldwide

ROMOR® I BEARING STAVES

Made from specially formulated nitrile rubber bonded to Ultra High Molecular Weight Polyethylene (UHMW-PE) backing. Bearing surface with a controlled thickness, 15 to 20 micro-inch, glass-smooth finish and 80 Durometer, Shore A, hardness. This provides lower coefficient of friction, less break-in running time, vibration dampening, quiet operation and longer bearing and shaft life. Meets MIL-B-17901B (SH) Class III bearing specifications.

  • Special bearing profile provides minimum approach angle between bearing surface and shaft, lowering the coefficient of friction and aiding in solid particle rejection
  • Individually replaceable staves reduce maintenance costs and are fully interchangeable with Class I, brass backed staves

ROMOR® SEGMENTAL HOUSINGS

  • Centrifugal cast bronze housings are precision machined with keystone or dovetail slots
  • Longitudinal water grooves between bearing staves provide optimum water flushing and lubrication
  • Available in split or solid configurations, custom lengths and diameters

DURAMAX® MARINE SEALING SYSTEMS

Duramax® Marine offers an extensive choice of propulsion and rudder shaft sealing systems which accommodate a wide range of shafting sizes and system design requirements.

DURAMAX® SHAFT SEAL SYSTEM

  • Special face seal design reduces maintenance and shaft wear
  • Dripless seal technology reduces oily contaminated water in the bilge and covered spring chamber provides secondary water seal for backup protection
  • Available for propeller shaft applications with different mounting adapters, simplifying installation and reducing retrofit costs

JOHNSON STUFFING BOXES

  • Ruggedly constructed, offering dependable performance from air, water and grease services. Water supply connection lubricates rubber bearings and grease fitting with lantern ring lubricates compression packing
  • Innovative "air seal" design allows packing change-out without dry-docking vessel
  • Several models available in bronze, aluminum or steel for propeller and rudder applications

See also:
Duramax Marine on Ship Technology

Make an enquiry

Follow this company

Follow the company to be always up to date with this company

Address
Duramax Marine LLC

17990 Great Lakes Parkway

Hiram

Ohio 44234

Other

United States of America

+1 440 834 5400 +1 440 834 4950 www.duramax-marine.com

Duramax Marine Images

Products and Services

Video

White Papers

Related Projects



San Antonio Class Landing Platform Dock



The San Antonio Class landing platform dock is the latest class of amphibious force ship for the US Navy.

18 May 2016

NSSN Virginia Class Attack Submarine



The Virginia Class new attack submarine is an advanced stealth multimission nuclear-powered submarine for deep ocean anti-submarine warfare and littoral (shallow water) operations.

2 March 2015

HMS Ocean (LPH01) Helicopter Carrier



The UK Ministry of Defence issued an invitation to tender in July 1987 for an amphibious helicopter carrier for the Royal Navy.

20 June 2012

Horizon Class



Italy and France each ordered two Horizon Class anti-air warfare (AAW) frigates in October 2000. The frigates are being

12 February 2004

LHD Wasp Class Amphibious Assault Ships



Seven Wasp Class amphibious assault ships have been built by Northrop Grumman Ship Systems (formerly Litton Ingalls Ship

28 February 2002

Huon Class



The Huon design is based on the Italian Gaeta/Lerici Class. Six minehunters have been built by ADI in Newcastle, Austral

3 May 2001

La Fayette Class Frigate



The French Navy's La Fayette Class multipurpose stealth frigates were developed by DCN International (now DCNS) and buil

Albion Class LPD (R) Landing Platform Dock



On 18 July 1996, the UK Ministry of Defence announced a £450m order with Vicker's Shipbuilding and Engineering, now BAE

Nimitz Class Aircraft Carrier



The Nimitz Class aircraft carriers are the largest warships ever built. With over 6,000 personnel (crew and aircrew), th

SSN Los Angeles Class Nuclear Submarine



The United States Navy has 51 nuclear powered Los Angeles Class submarines, 16 in the Pacific Fleet and 32 in the Atlant

11 February 2001

Kang Ding Class



The Kang Ding Class are La Fayette Class frigates built for the Taiwanese Navy. In 1992, the Taiwanese government contra

11 January 2001

Avenger Class Mine Countermeasures Vessels



14 Avenger mine countermeasures vessels were commissioned between 1987 and 1994 and are in service with the US Navy. The

14 August 2000

Supply Class



The Supply Class fast combat support ships were supplied to the US Navy by National Steel and Shipbuilding of San Diego.

3 April 2000

Eilat Class Multi Mission Naval Corvettes



In the early 1980s, the Israeli Navy awarded a contract to Northrop Grumman Ship Systems (formerly Litton Ingalls Shipbu

Kirov Class (Type 1144.2) (Peter the Great)



The Russian heavy missile cruise ship, Project 1144.2 Kirov Class was built by the Baltic Shipyard in Saint Petersburg.

26 March 2000

LSD Whidbey Island/Harpers Ferry Class – Dock Landing Ships – Amphibious Assault Vessels



The Whidbey Island Class and the Harpers Ferry Class are dock landing ships which support amphibious operations includin

20 March 2000

SSBN / SSGN Ohio Class Submarine



The Ohio Class submarines serve the United States Navy as the virtually undetectable undersea launch platforms of interc

3 November 1998

SSN Seawolf Class



The Seawolf was conceived as a faster, better-armed eventual replacement for the Los Angeles Class nuclear-powered attac

Press Release

Regional Offices

Duramax Marine LLC

17990 Great Lakes Parkway

Hiram

Ohio 44234

Other

United States of America

+1 440 834 5400 +1 440 834 4950 www.duramax-marine.com

Contact company

I have read and accept the terms and conditions and privacy policys.
We'd like to keep you informed about relevant promotions, products and services, if you would like not to receive these, check this box.
If you would like to hear from carefully selected third party companies, check this box
Follow this company to receive notifications when they update.