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Tides Marine

Rudder Bearings and Seals

Tides Marine is committed to designing and manufacturing marine system components which improve vessel performance and reliability, solve unique marine system issues, reduce the need for scheduled maintenance and provide worry-free, long term boating enjoyment.

Please view our full catalogue of Tides Rudder Bearings and Seals.




Tides Marine SureSeal System

The Tides Marine shaft seal system, is the market leader in dripless propeller shaft sealing. SureSeal™ has become an industry standard which is fitted to many production-built power boats, yachts and commercial craft.

The Tides Marine SureSeal™ system is a self-aligning shaft seal. The one-piece fibre-reinforced composite housing consists of a water lubricated PTFE shaft alignment bearing and lip seal.

Once the bearing is on the shaft, the risk of misaligning the SureSeal™ is reduced. The housing is connected to the stern tube by the means of an articulating hose which means there's no measurement required resulting in very simple, self aligning fitting. The hose reduces side loads to the SureSeal™ when shaft misalignment occurs, extending the life of the bearing and lip seal.

SureSeal™ units have a worldwide warranty of 2500 engine hours, or two years (whichever comes first).

Spare lip seals in a special carrier case can be installed on the shaft at the time of installation. This allows for a simple change-out of the lip seal if it should be damaged. This can be done without the need to uncouple the shaft or the expense of removing the vessel from the water.

SureSeal™ can be easily fitted as a replacement for traditional packed glands or to upgrade from face seals. 

Don't forget to look at the SMART SEAL temperature Alarm system as the perfect safety accessory to your SureSeal.

Tides SureSeal Brochure

Tides Marine Sailtrack & Slide System

The Tides Marine Track and Slide System is a high performance, low-friction mainsail luff track and slide system built to handle the increased loads and demands of today's full-batten mainsails.

When installed, the mainsail will rise easily and drop the instant the halyard is released. The System consists of a one-piece UHMW track and an "owner-defined" selection of matched slides and batten receptacles designed for smooth, long-lasting operation.

The Sailtrack is priced per foot, which includes all hardware. It offers minimal stack height, less weight aloft and low-friction performance rivaling systems costing more than twice as much. It can be installed without going aloft and without drilling holes in the mast.

Sailtrack Reviews

A couple of months ago we fitted a Tides Marine Sail Track to our 40 foot cutter "Dreamtime III". For 16 years we'd been spraying lubricant onto the slides or just struggled to haul and drop the main...but those days are over.
We've nick named our sail track "the slippery little sucker"!
The only resistance I experience now is the weight of the sail or the attitude of the crew :-)

Thanks Dave, great innovation!

Adrian & Chris
SV Dreamtime III
Whitsundays Islands


My yacht Sand Dollar has had a Tides Marine sail track fitted for the last six years. It was installed in the USA, prior to crossing the Pacific to New Zealand and then on to Aust. The track has performed flawlessly in all sailing conditions, greatly easing sail handling. Due to suspected rare uv degradation of my particular track it required replacing.

Dave from Tides Marine Australasia Pacific offered fantastic customer service and product backup. With over 20 years experience in the marine industry, both recreationally and professionally as a delivery skipper to numerous boat owners around the world, the customer care I received from Tides Marine Australasia Pacific was second to none.

Thanks again Dave,
Regards Peter 


We are regularly in touch with Shaun and John now in Alaska who you helped with their Strong Track system when they were passing through Aus and they have had their system for 7 or 8 years I believe and are happy with it.  Carol at Port Townsend Sails in Washington State, USA was the first one to tell us of  about the Strong Track system when we were over there in 2007 but at that time we were strapped for cash so didn't proceed.  Glad we have now.  I do think you need to publicise the system more in Aus as not too many people seem to have heard of it.  We will be promoting it in our club, CCCA in Sydney.

Best Wishes
Mike and Sue P
Sydney


Hi David

We just picked up our copy of the Afloat magazine and saw the ad for your great track system .
Hope this form of advertising works for you ,we are delighted with our sail track and show it to anyone who is interested

John and De D
Tasmania


Hi Dave,

I've finally got my mast back in the boat and have had a couple of runs with the new sail and track - both are excellent and I just wish I had ordered the track system years ago,

best regards,
Tim P
Port Douglas


Sailtrack Brochure
Sailtrack Installation Internal
Sailtrack Installation Internal Flat
Sailtrack Installation Internal Round
Sailtrack Installation External
Sailtrack Installation External CMPE

Upper Rudder Bearing - STD

The Tides Marine Upper Rudder Bearing-Standard (URBSTD) is designed to be mounted directly on top of the rudder shelf. It is an ABS and Lloyds-approved, self aligning design which accommodates up to 10 degrees of off-axis alignment between the mounting surface (rudder shelf) and the rudder stock. As a result, it requires no shimming during installation and won't load up the rudder shaft during vessel operation. The URB-STD is lighter than conventional bronze units. It consists of a UHMW ball-type bearing captured within an UHMW housing. The ball-type bearing is designed with a shoulder at the top to accept a rudder collar, allowing the unit to effectively carry rudder "download" during vessel operation.

The Tides design eliminates metal-to-metal contact and the associated problems of abrasion, electrolysis and corrosion. The URB-STD is self-lubricating and maintenance free. Steering is smoother and quieter.

Upper Rudder Bearing - STD

Tides Marine Lip Seals

Tides Marine Nitrile Lip Seals are specifically designed for each type of sealing application, whether propeller shaft or rudder stock.

The outer shell is made of an Aramid fiber composite which is integrally molded to a rubber hinge and a nitrile lip edge. A 316-stainless steel garter spring is incorporated to distribute loads uniformly over the propeller shaft or rudder stock.

When ordering replacement lip seals, please note whether you have a SureSeal™ or a Strong-Seal™ installed in your vessel. There is a part number on the face of the lip seal which will identify the exact replacement seal required.

*** Please see the Tides SureSeal Brochure (under Shaft Seals) for sizing and more information***

 

Lip Seal Information

Lip Seal Replacement FAQ

Lip Seal Replacement Guide

Upper Rudder Bearing - LP

The Tides Marine Upper Rudder Bearing-Low Profile (URB-LP) is designed to be installed on vessels where the steering system components need to be located as close to the rudder shelf as possible. Mounted "through" the rudder shelf, this design maintains a clean, low-profile appearance. Like the URB-STD, the URB-LP is an ABS- and Lloyds-approved, self-aligning design which accommodates up to 10 degrees of off axis alignment between the mounting surface (rudder shelf) and the rudder stock. As a result, it requires no shimming during installation and won't load up the rudder shaft during vessel operation.

The URB-LP is lighter than conventional bronze units. It consists of a UHMW ball-type bearing captured within an UHMW housing. The ball-type bearing is designed with a "flat surface" at the top to accept a rudder collar, allowing the unit to effectively carry rudder "download" during vessel operation.

The Tides design eliminates metal-to-metal contact and the associated problems of abrasion, electrolysis and corrosion. The URB-LP is self-lubricating and maintenance free. Steering is smoother and quieter.

Rudder Port Bearing - LP

Tides Marine Spare Seal Carriers

Tides Marine Spare Seal Carriers were developed as a convenient device to store spare lip seals. Installed at the same time as the SureSeal™, these carriers protect the spare lip seal mounted on the shaft and allow the vessel operator to replace a worn lip seal without uncoupling the shaft from the transmission or the expense of removing the boat from the water.

The Spare Seal Carrier is a light-weight, two-piece, nonmetallic housing which is clamped to the propeller shaft between the SureSeal™ and the transmission coupling. They are available to suit all seal sizes.

Spare Seal Carriers for propeller shafts up to (and including) 1 3/4" include one spare seal and housing. Carriers for propeller shaft 2" to 3" include two spare seals and housings. Carriers for 3 1/4" propeller shafts and above have two spare seals in one housing.

*** Please see the Tides SureSeal Brochure (under Shaft Seals) for sizing and more information***

Spare Seal Carrier Information

Rudder Port System - Tube

Based upon Tides' patented Type D System, the Tides Marine Rudder Port/Bearing Tube System (RPB-Tube System) is another rudder system approach which can be used effectively by FRP boat builders. These tube systems are installed during initial lay-up, providing the builder with an accurate, repeatable way to position the rudder bearing and sealing function in their vessels time after time.

An upper and lower bearing machined from UHMW are aligned and assembled into an FRP tube (constructed using either epoxy or vinylester resin). Two lip seals system overview are contained in the top of the tube. With minor mold modifications, the Tube System can save boat builders several hours of post-lay-up installation time. Tube System options are available for a variety of hull configurations and installation training is available for all builders.

Rudder Tube Systems

Tides Marine Smart Seal Alarm System Gen 2

Tides Marine and Pros by Ditel have upgraded the Smart Seal Temperature Monitoring System: The Generation 2 unit is now available.

Smart Seal is an overheat warning system that uses solid state sensors to monitor the operating temperature of Tides Marine’s American Bureau of Shipping-certified propeller shaft seal systems found on many commercial and pleasure craft.

Any increase in the normal operating temperature of the shaft seal installation will trigger an audible and visual alarm, allowing maintenance to be carried out before damage to the seal head results.

Smart Seal Generation 2 incorporates a new flush mount control panel with dedicated versions for single and twin engine configurations, and has a quick-connect wiring system for both unit power and temperature sensors. Fittingthe Smart Seal is a straightforward installation.

The control panel accepts a 12V or 24V DC power supply and has a self-diagnostic facility on power-up to ensure that the system is functioning correctly.

SMART SEAL works with both new builds and retro-fit markets.

*** Please see the Tides SureSeal Brochure (under Shaft Seals) for sizing and more information***


Rudder Port Bearing - Type C

The Tides Marine Type-C Rudder Port is used in vessels constructed of FRP, steel or aluminum which have an integral rudder port tube and flange. Unlike the typical assembly with separate bearing and packing, the Type-C unit combines both sealing and bearing functions in a cost-effective housing. It is an ABS- and Lloyds-approved design and offers a substantial "bearing surface" to "rudder stock diameter" ratio.

The units consist of a one-piece UHMW housing and a nitrile lip seal. The Type-C is 100% watertight. It eliminates metal-to-metal contact and the associated problems of abrasion, electrolysis and corrosion. Rudder chatter and vibration are reduced resulting in quieter, smoother performance.

Rudder Port Bearing - Type C

Rudder Port Bearing - Type D

The Tides Marine Type-D Rudder Port System is an integrated approach to rudder port design and installation developed for the FRP boat builder. Unlike conventional post-lay-up rudder port installations, the Type-D system components are built into the hull at the time of lay-up resulting in a stronger, better performing port and bearing assembly.

One reason many boat builders are changing to the Type-D system is the significant labor savings associated with this approach. To accommodate various conventional rudder ports currently available, builders have to perform a variety of post-lay-up operations on each hull being produced. These include: building up / leveling mounting blocks, locating the correct position and axis for the rudder stock hole, aligning and drilling pilot holes and subsequent thru-holes, checking and adjusting for misalignment which may have occurred along the way and, finally, locating and drilling the mounting holes for the conventional port unit. These operations require special jigs and fixtures, several skilled workers, numerous tools and significant man hours to complete.

The Type-D Rudder Port System incorporates a unique FRP liner into each hull lay-up which accepts a matching rudder bearing and lip seal assembly. The placement and angle of each liner is predetermined by a one-time mould modification. From that point on, every hull made from this mold will have an identical, perfectly-aligned rudder port and sealing assembly. Post-lay-up operations once requiring hours of skilled labor are eliminated

Rudder Port Bearing - Type D

Rudder Port Bearing - Type E/F

Tides Marine RPB Type-E and RPB Type-F units are designed to be installed in rudder tubes which have been glassed or welded into a vessel's hull. Type-E units have a flange and Type-F units do not. They may be used on power boats and sailboats. To improve the strength of the bond between these units and the rudder tube, external bonding grooves are machined into the OD of each part.

The units consist of a one-piece UHMW housing with a nitrile lip seal. They eliminate metal-to-metal contact and the associated problems of abrasion, electrolysis and corrosion. They are 100% watertight and eliminate chatter and vibration resulting in quieter, smoother operation. 

Rudder Port Bearing - Type E

Rudder Port Bearing - Type F

Rudder Port Bearing - Type G/H

Tides Marine RPB Type-G and RPB Type-H units are designed to be installed in rudder tubes which have been glassed or welded into a vessel's hull. These units are simple bearings and do not provide a sealing function.

Type-G units have a flange and Type-H units do not. They may be used on power boats and sailboats. To improve the strength of the bond between these units and the rudder tube, external bonding grooves are machined into the OD of each part.

The units consist of a one-piece UHMW housing which has fluted, self-cleaning grooves running axially along the ID of each part. They eliminate metal-to-metal contact and the associated problems of abrasion, electrolysis and corrosion. They eliminate chatter and vibration resulting in quieter, smoother operation.

Rudder Port Bearing - Type G/H


Rudder Seal Type I

Tides Marine Type-I Rudder Seals are retrofit units which are designed to replace hose mounted rudder stuffing boxes. They are connected to the existing bronze rudder port with a flexible hose which aligns the unit with the rudder stock. The assembly consists of a one-piece UHMW housing and a nitrile lip seal. The Type-I will slightly increase the overall height of the rudder port assembly.

These 100% watertight units provide quieter, smoother operation. A pre-cut length of soft-wall hose (purchased separately) must be used with each Type-I Rudder Seal for warranty coverage to apply.

Rudder Seal - Type I

Rudder Seal Type J

Tides Marine RPB Type-J Rudder Seals are designed to replace the flax packing and compression nut of existing bronze rudder ports. Consisting of a one-piece UHMW housing with a nitrile lip seal, the Type-J is 100% watertight. It is not subject to corrosion or electrolysis and provides quieter, smoother rudder system operation than the bronze stuffing box alternative.

Rudder Seal - Type J

Rudder Port Bearing - Type K

The Tides Marine RPB Type-K was designed to be used with certain flanged, bronze rudder ports with two mounting studs to accept/adjust the flax packing collar.

These units mount directly over the existing studs and are available with or without a lower bearing insert. This insert installs from outside the hull and usually replaces a conventional marine cutless bearing.

The Type-K unit consists of a one-piece UHMW housing with a nitrile lip seal. The unit eliminates metal-on metal contact and the associated problems of abrasion, electrolysis and corrosion. They are 100% watertight and reduce rudder chatter and vibration resulting in quieter, smoother rudder system performance.

Rudder Port Bearing - Type K

Rudder Collars

Tides Marine Rudder Collars are for use on power boats. Machined from 304 stainless steel, each unit comes with two threaded locking screws. A third "indexed hole" (which is not threaded) is machined into each Rudder Collar and may be used as a guide to drill "dimples" in the rudder stock. Simply measure your rudder stock diameter (.000") and select the matching part number from the PDF Specification.

Rudder Collars

Rudder Spare Seal Carrier Kits

Tides Marine Spare Seal Carriers - Rudder were developed as a convenient place to store spare lip seals on the rudder stock. The unit also makes the job of replacing the lip seal in a Tides Marine rudder port easier and is recommended as an accessory for all Tides Marine rudder ports. Installed at the same time as the RPB, they allow the lip seal to be replaced without uncoupling the rudder stock from the steering system or dropping the rudder.

The unit is a lightweight, two-piece, filled-nylon housing which is affixed to the rudder stock between the Tides RPB and the upper rudder bearing. Each unit comes with a lip seal and red installation hat.

Rudder Spare Seal Carrier Kits 

Rudder Lip Seals