The Jefa 100 series aluminium draglink

With the 100 series draglink Jefa Steering introduces a new style of draglink design. The use of high strength aluminium AlMgSi1 creates a lighter and stronger solution over the common stainless steel solutions (proof stress of 280 N/mm² compared to 200 N/mm² for stainless steel).
The fully articulated rose joints on the draglink aren't industry joints, but a special design by Jefa Steering and made from high strength anodised aluminium with an easy removable delrin ball inside. This solution finally solves the electrically disconnection of the rudder from the rest of the steering system and boat.
Due to the long threaded part of the rose joint a total adjustment of 110 mm is created. This high adjustment eliminates the necessity to weld the draglink to length, one merely has to choose the correct draglink for the length required.
The delrin ball can easily be removed by rotating it 90º and pulling it out of the housing. As a rose joint is one of the wearing parts of a rack and pinion system, this solution provides a simple and cheap service exchange in the future. Conventional rose joints need to be completely exchanged when worn.
The Jefa rose joints standard have a 16 mm hole, but they are also available in imperial sizes for replacement on other steering systems.
The Jefa draglinks up until 600 mm centres have 25 mm thick wall tubing, from 700 mm to 1400 mm centres 30 mm thick wall tubing is used. Both tubes have an inside diameter of 18 mm.

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Jefa 100 series draglinks and accessories

Part No.

Description

DL2030

100 series draglink, 200 to 300 mm centres

DL3040

100 series draglink, 300 to 400 mm centres

DL4050

100 series draglink, 400 to 500 mm centres

DL5060

100 series draglink, 500 to 600 mm centres

DL6070

100 series draglink, 600 to 700 mm centres

DL7080

100 series draglink, 700 to 800 mm centres

DL8090

100 series draglink, 800 to 900 mm centres

DL90100

100 series draglink, 900 to 1000 mm centres

DL100110

100 series draglink, 1000 to 1100 mm centres

DL110120

100 series draglink, 1100 to 1200 mm centres

DL120130

100 series draglink, 1200 to 1300 mm centres

DL130140

100 series draglink, 1300 to 1400 mm centres

DL.....

100 series draglink, above 1400 mm centres
"heavy duty" draglinks and other tube diameters

DLB16

Ball for 100 series draglink with 16 mm hole

DLB58

Ball for 100 series draglink with 5/8" mm hole