The BS25 bulkhead steerer The Jefa BS25 type bulkhead steerer incorporates twin high efficiency 25 mm ball bearings, which are double sealed and pre-lubricated for a long and maintenance free life. The lip seal at the front is the especially developed Jefa PUR seal, which contains no metal parts for a life long problem free usage. The stainless steel steering shaft has a diameter of 25 mm to guarantee a stiff and strong steering arrangement for wheels up until 1300 mm diameter. Above 1300 mm wheel size one should add a support bearing at the aft side of the steering shaft (like the BS30 unit). The maximum wheel size accepted is 1500 mm, above 1500 mm wheel diameter the BS30 should be used. The large internal brake dish provides an efficient and strong braking arrangement. The number of turns achieved with the various sprockets can be found in our sprocket table. |
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General measurements standard unit |
General measurements extended version with support bearing |
BS25 integrated steering disengagement unit: |
Jefa Steering has developed a
disengagement steering unit to be used in all Jefa WP700-WP900 cable steering
pedestals (using the BS25 steerer). As most boats nowadays are equipped with twin wheel steering,
the helmsman experiences an echo of the inertia of the non-used wheel.
When sailing on autopilot, both wheels have to be speeded up and down
continuously causing a high power consumption and wear. The ideal
solution would be if the wheel could be easily disengaged from the
mechanical steering system by the helmsman. The Jefa integral
disengagement steering unit offers an unique solution. Disengagement
units in the steering wheel hubs do exists, but at very high costs and
causing the steering wheel hub to be very bulky so only usable on big
stainless steel double spoked wheels. Modern boats use smaller (twin)
wheels made of aluminium, carbon or GRP. Disengagement units for these
modern wheels dont exist on this moment. |
What makes the Jefa
integrated disengagement steering unit unique and an absolute
innovation?
Please follow this link to YouTube for an animation of the functioning. |
General measurements BS25 version with disengagement unit |
BS25 bulkhead steerers with 25 mm taper |
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Part No. |
Description |
Price in Euro |
BS25-11 | BS25 bulkhead steerer with 11 teeth 5/8" st.st. sprocket | 430 |
BS25-13 |
BS25 bulkhead steerer with 13 teeth 5/8" st.st. sprocket |
443 |
BS25-15 |
BS25 bulkhead steerer with 15 teeth 5/8" st.st. sprocket |
443 |
BS25-17 |
BS25 bulkhead steerer with 17 teeth 5/8" st.st. sprocket |
443 |
BS-SUP |
Support bearing for bulkhead steerer |
107 |
WS-DIS |
Disengagement unit integrated in steerer/pedestal |
315 |
The BS20 bulkhead steerer The Jefa BS20 type bulkhead steerer incorporates a high efficiency 25 mm ball bearing, which is double sealed and pre-lubricated for a long and maintenance free life. Due to this single bearing arrangement (for compact dimensions) the BS20 steerer should always be used in conjunction with the BS20-SUP support bearing. The lip seal at the front is the especially developed Jefa PUR seal, which contains no metal parts for a life long problem free usage. The stainless steel steering shaft has a diameter of 25 mm to guarantee a stiff and strong steering arrangement for wheels up until 1500 mm diameter, above 1500 mm wheel diameter the BS30 should be used. The large internal brake dish provides an efficient and strong braking arrangement. The number of turns achieved with the various sprockets can be found in our sprocket table. |
General measurements |
BS20 bulkhead steerers with 25 mm taper |
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Part No. |
Description |
Price in Euro |
BS20-11 | BS20 bulkhead steerer with 11 teeth 5/8" st.st. sprocket | 392 |
BS20-13 |
BS20 bulkhead steerer with 13 teeth 5/8" st.st. sprocket |
405 |
BS-SUP |
Support bearing for bulkhead steerer |
107 |
The BS30 group bulkhead steerer The Jefa BS30 type bulkhead steerer incorporates twin high efficiency 30 mm ball bearings, which are double sealed and pre-lubricated for a long and maintenance free life. The lip seal at the front is the specially developed Jefa PUR seal, which contains no metal parts for a life long problem free usage. The stainless steel steering shaft has a diameter of 30 mm to guarantee a stiff and strong steering arrangement for wheels up until 1900 mm diameter. The taper is available in 2 versions: 25 mm international taper, suitable for Jefa steering wheels up until 1500 mm and the 30 mm international taper for Jefa steering wheels above 1500 mm diameter. The large internal brake dish provides an efficient and strong braking arrangement. The stainless steel backing plate is standard supplied with 6 mounting bolts. A large range of sprockets is available to achieve the required number of turns of the steering wheel in combination with the chosen quadrant (see the sprocket table). The steering is available without the ball for the aft bearing for yachts with very rigid bulkhead in combination with a wheel smaller than 1300 mm diameter. The steering shaft is variable in length to suit the customer requirements. |
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General measurements |
BS30 bulkhead steerers with 25 mm taper (for 30 mm taper please add /T30 to part number) |
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Part No. |
Description |
Price in Euro |
BS30-11 | BS30 bulkhead steerer with 11 teeth 5/8" st.st. sprocket | 653 |
BS30-13 | BS30 bulkhead steerer with 13 teeth 5/8" st.st. sprocket | 676 |
BS30-15 | BS30 bulkhead steerer with 15 teeth 5/8" st.st. sprocket | 676 |
BS30-17 | BS30 bulkhead steerer with 17 teeth 5/8" st.st. sprocket | 676 |
BS30-19 | BS30 bulkhead steerer with 19 teeth 5/8" st.st. sprocket | 676 |
BS-SUP | Support bearing for bulkhead steerer | 107 |