Jefa Marine and Jefa Steering produce high quality rudder and mechanical steering systems for sailing yachts. Welcome to the Jefa brand name web portal! Jefa Steering and Jefa Rudder are two independent companies sharing their web entry portal. Clicking on the below website entries will bring you to each separate website.
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Welcome to the Jefa Steering website. please navigate our website via the left main menu. For more info on the functioning of the Jefa drive units, please visit our Q&A page An overview of our drive units can be found on this web page. More info on the DD1 direct drive can be found on the DD1 product page. All prices stated on this website are valid for Europe and in Euro, ex works …
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The Jefa linear drive is a strong and compact autopilot drive and much more efficient than existing hydraulic and electro-mechanical linear autopilot drive units (for the why and how, please see our Q&A page). With a thrust of 400 Kgs on 250 mm centers it's much stronger than a human being (the max. output torque of 100 KgM is equivalent to 100 Kg force on the end of a 1 …
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Retrofittable to all thousands of existing Jefa cable steering pedestals. Affordable price level (€315 surcharge on an new system and €746 for a retrofit unit including new steerer (prices excluding VAT). Please follow this link to YouTube for an animation of the functioning.
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THE STEERING SYSTEM OF CHOICE. FOR SERIOUS BOATBUILDERS. Since 2001, JEFA Steering has rocked the boat business with its innovative steering solutions that have grown to become the steering system of choice for the biggest production of yacht shipyards in the world.
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The lever geometry of the Jefa transmission systems is based on the principle of Wide Angle Geometry. This results in a very direct steering at midships (where the loads are low) and a more indirect and powerful steering at full rudder (where the loads are maximal). Due to this unique feature, the total number of turns of the wheel on a ...
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Mar 02, 2008 . Jefa manuals specifically state to reduce the output of the servodrive to 20 Amps. This can be accomplished by adjusting the GAIN of the steering computer. Servosystems are not like normal motors. If you instruct them to move fast they will and of course will draw as much power as necessary.
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Jefa Sealing System. The sealing system is one of the most important parts of the rudder system. A leaking sealing system is irritating and dangerous. A lot of development is done in the last decade to guaranty a problem free system. Some designers still draw old-fashioned systems based on on O-rings or stuffing boxes.
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Jefa Electric Steering System Jefa The unique Jefa Electric Steering System for power boats and catamarans is easy to install, much lighter to operate due to the powered solution, only needs one revolution of the wheel, it can control more than one actuator at the same precision (making the system ideal for twin rudder power boats and catamarans) and it’s an ideal and …
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Jefa Steering Systems for your yacht. Stainless steel, aluminum, wood and carbon steering wheels. Cable, rack and pinion, transmission and hydraulic steering pedestals and components. Also, accessories such as compasses, cockpit tables and instrument housings.
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Jefa Hydraulic pedestals. H300 pedestal. H200 pedestal. H400 pedestal. Jefa Wire system. Chain, wire and conduit. Table for choosing sprocket and quadrant size. Bulkhead and horisontal steerers. Cable steering pedestals.
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Steering system: If you use a hydraulic steering system, in combination with nylon flexible hoses, there is no problem. As the use of a hydraulic system on a sailing yacht is very rare, one should concentrate on mechanical steering systems. Two methods of steering can be used: cable steering or rod steering.
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Feb 11, 2014 . Jefa transmission steering system. That doesn’t mean nothing has happened. I’ve punished my brains about the steering system. The choice for a wheel has been made. The distance between wheel and rudder is almost 3m and the waterballast tank is in between. I made a mock-up for a rack & pinion system to see if I can make an optimum use of ...
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The Jefa Transmission Steering System (TSS) is based on the same principals as a rack and pinion system with a direct and solid connection to the rudder. The rotation of the wheel is transferred to a push pull movement via gearbox and levers. With the TSS system, the distance between the wheel to the rudder shaft can be much larger and the ...
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Sealing Systems. Tiller Heads. Washers. Deck Covers. Sleeves. Who is Jefa Rudder? Beginning in 1980, Jefa Rudder has supplied Rudder Bearings to over 40,000 boats. Jefa was founded by Jan Faurschou. Today Jefa Rudder is steered with the second generation at its helm, by Jan’s daughter Louise. + 0.
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The bearing inside diameter will have to be made to 90.00 millimetres. The rudder shaft will have to be 89.95 to 89.97 millimetres. Only by producing both items on this extremely high tolerance one would get a satisfactory solution. Now we get to the difference in bearings with an inner housing and the Jefa bearings: The mounting on the shaft.
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The Jefa direct drive type I is an extremely strong and compact autopilot drive and much more efficient than existing hydraulic and electro-mechanical autopilot drive units (for the why and how, please see our Q&A page). It’s much stronger than a human being (the max. output torque of 150 KgM is equivalent to 150 Kg force on the end of a 1 ...
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Jefa offers three different hydraulic steering systems. The H200, H300 and H400 hydraulic steering pedestals.
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A superior steering system for blue-water cruising. We never use cable or hydraulic steering. We only use a premium JEFA shaft and rotary gear systems. Every Antares is equipped with the best components, and the steering system is no exception. The gearbox converts rotary motion to transverse motion, which moves the tiller arm.
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Jefa Steering is a world leader in sailboat steering with their systems on some of the most prestigious and recognized production boats in the market. With four different steering methods available, Jefa steering always has a solution for your boat. Looking for Jefa Rudders or Rudder Bearings? Visit our Jefa Rudders & Rudder Bearings website.
The CNC process allows Jefa to deliver high quality close tolerance for new systems and precision replacement and service part for existing systems. Jefa's Transmission Steering System "TSS" is mechanical system for any Sailing vessel with high steering loads or a complex path from the steering wheel to the rudder.
Jefa Steering pedestals are finished with electrostatic powder coating for durable glossy finish that will withstand years of exposure in harsh marine environment. Wire Sheave assemblies are available with sheaves machined from delrin or aluminum alloy.
Beginning in 1980, Jefa Rudder has supplied Rudder Bearings to over 40,000 boats. Jefa was founded by Jan Faurschou. Today Jefa Rudder is steered with the second generation at its helm, by Jan’s daughter Louise. Jefa rudder bearings offer the utmost in feel and durability.
Jefa Steering is a world leader in sailboat steering with their systems on some of the most prestigious and recognized production boats in the market. With four different steering methods available, Jefa steering always has a solution for your boat. Looking for Jefa Rudders or Rudder Bearings? Visit our Jefa Rudders & Rudder Bearings website.
More than 20.000 rudder and more than 150.000 rudder bearings have left the Jefa factory since 1980. In 1990 Jefa Marine started to make steering systems.
Every mechanical part on your boat will need maintenance in due time. The Jefa rudder system is no exception to this rule. Fortunately the maintenance on the Jefa rudder system is very limited.
Today Jefa Rudder is steered with the second generation at its helm, by Jan’s daughter Louise. Jefa rudder bearings offer the utmost in feel and durability.