Open wire sheaves
The Jefa upright sheaves contain a housing made of machined aluminium extrusion profile. This housing is much stronger and reliable than casted aluminium housings. The housing can contain a black delrin sheave or an aluminium sheave both with a sealed ball bearing. (For outside use a special version with a stainless ball bearing is available at no surcharge, please note on order). The mounting of the sheave assembly is achieved by 4 off widely spread M8 bolts. The sheave can be rotated up to 13° each side to achieve the correct line up with the steering wire.
The 100 mm diameter sheave sets should be used with 5 mm steering wire. The 140 mm diameter sheaves should be used with 6 mm steering cable. It’s not advisable to use 6 mm cable on the 100 sheaves as the cable will fatigue quickly due to the too small bending radius.
All Jefa open wire sheaves are CE approved. This means that the sheave set will be able to take more loading than the maximum breaking strength of the appropriate steering wire.
General measurements of the upright sheaves
DATA TABLE
Jefa steering upright sheaves for open wire systems.
Part No. | Description |
---|---|
SH-UP100D | upright sheave assembly with 100 mm delrin sheave |
SH-UP100A | upright sheave assembly with 100 mm aluminium sheave |
SH-UP140D | upright sheave assembly with 140 mm delrin sheave |
SH-UP140A | upright sheave assembly with 140 mm aluminium sheave |
100 and 140 mm articulated sheaves
The Jefa articulated sheaves contain a housing made of aluminium extrusion profile. This housing is much stronger and reliable than casted aluminium housings. The housing can contain a black delrin sheave or an aluminium sheave both with a sealed ball bearing. (For outside use a special version with a stainless ball bearing is available at no surcharge, please note on order). The mounting of the sheave assembly is achieved by 4 off widely spread M8 bolts. The sheave can be tilted and rotated up to 13° each side in the mounting bolts to achieve the correct line up with the steering wire.
The 100 mm diameter sheave sets should be used with 5 mm steering wire. The 140 mm diameter sheaves should be used with 6 mm steering cable. It’s not advisable to use 6 mm cable on the 100 sheaves as the cable will fatigue quickly due to the too small bending radius.
All Jefa open wire sheaves are CE approved. This means that the sheave set will be able to take more loading than the maximum breaking strength of the appropriate steering wire.
General measurements of 100 mm articulated sheave
General measurements of 140 mm articulated sheave
DATA TABLE
Jefa steering articulated sheaves for open wire systems.
Part No. | Description |
---|---|
SH-A100D | articulated sheave assembly with 100 mm delrin sheave |
SH-A100A | articulated sheave assembly with 100 mm aluminium sheave |
SH-A140D | articulated sheave assembly with 140 mm delrin sheave |
SH-A140A | articulated sheave assembly with 140 mm aluminium sheave |
100 and 140 mm flat sheaves
The Jefa flat sheaves contain a housing made of aluminium extrusion profile. This housing is much stronger and reliable than casted aluminium housings. The housing can contain a black delrin sheave and an aluminium sheave with a sealed ball bearing. (For outside use a special version with a stainless ball bearing is available at no surcharge, please note on order). The mounting of the sheave assembly is achieved by 4 off widely spread M10 bolts.
The 100 mm diameter sheave sets should be used with 5 mm steering wire. The 140 mm diameter sheaves should be used with 6 mm steering cable. It’s not advisable to use 6 mm cable on the 100 sheaves as the cable will fatigue quickly due to the too small bending radius.
All Jefa open wire sheaves are CE approved. This means that the sheave set will be able to take more loading than the maximum breaking strength of the appropriate steering wire. Please click on the picture for a larger view.
General measurements of 100 mm flat sheave
General measurements of 140 mm flat sheave
DATA TABLE
Jefa steering flat sheaves for open wire systems.
Part No. | Description |
---|---|
SH-F100D | flat sheave assembly with 100 mm delrin sheave |
SH-F100A | flat sheave assembly with 100 mm aluminium sheave |
SH-F140D | flat sheave assembly with 140 mm delrin sheave |
SH-F140A | flat sheave assembly with 140 mm aluminium sheave |
100 and 140 mm bulkhead sheaves
The Jefa bulkhead sheaves are designed to be mounted on a bulkhead. The sheave can be rotated in 2 planes over 24 degrees and can be adapted for bulkheads from 10 mm to 30 mm. The Jefa bulkhead sheaves contain multiple parts made of aluminium extrusion profile. These housings are much stronger and reliable than casted aluminium housings. The sheave housing can contain a black delrin sheave or an aluminium sheave with a sealed ball bearing. (For outside use a special version with a stainless ball bearing is available at no surcharge, please note on order). The mounting of the sheave assembly is achieved by 4 off widely spread M8 bolts.
The 100 mm diameter sheave sets should be used with 5 mm steering wire. The 140 mm diameter sheaves should be used with 6 mm steering cable. It’s not advisable to use 6 mm cable on the 100 sheaves as the cable will fatigue quickly due to the too small bending radius.
All Jefa open wire sheaves are CE approved. This means that the sheave set will be able to take more loading than the maximum breaking strength of the appropriate steering wire. Please click on the picture for a larger view.
General measurements
DATA TABLE
Jefa steering bulkhead sheaves for open wire systems.
Part No. | Description |
---|---|
SH-BH100D | bulkhead sheave assembly with 100 mm delrin sheave |
SH-BH100A | bulkhead sheave assembly with 100 mm aluminium sheave |
SH-BH140D | bulkhead sheave assembly with 140 mm delrin sheave |
SH-BH140A | bulkhead sheave assembly with 140 mm aluminium sheave |
100 and 140 mm self-aligning bulkhead sheaves
The Jefa self-aligning bulkhead sheaves are designed to be mounted on a bulkhead. The sheave can be rotated to align to the cable and can be adapted for bulkheads from 21 mm to 29 mm. The Jefa bulkhead sheaves contain multiple parts made of aluminium extrusion profile. These housings are much stronger and reliable than casted aluminium housings. The sheave housing can contain a black delrin sheave or an aluminium sheave with a sealed ball bearing. (For outside use a special version with a stainless ball bearing is available at no surcharge, please note on order). The mounting of the sheave assembly is achieved by 4 off widely spread M8 bolts.
The 100 mm diameter sheave sets should be used with 5 mm steering wire. The 140 mm diameter sheaves should be used with 6 mm steering cable. It’s not advisable to use 6 mm cable on the 100 sheaves as the cable will fatigue quickly due to the too small bending radius.
All Jefa open wire sheaves are CE approved. This means that the sheave set will be able to take more loading than the maximum breaking strength of the appropriate steering wire. Please click on the picture for a larger view.
General measurements of 100 mm self-aligning bulkhead sheave
General measurements of 140 mm self-aligning bulkhead sheave
DATA TABLE
Jefa steering self-aligning bulkhead sheaves for open wire systems.
Part No. | Description |
---|---|
SH-BHSA100D | self-aligning bulkhead sheave assembly with 100 mm delrin sheave |
SH-BHSA100A | self-aligning bulkhead sheave assembly with 100 mm aluminium sheave |
SH-BHSA140D | self-aligning bulkhead sheave assembly with 140 mm delrin sheave |
SH-BHSA140A | self-aligning bulkhead sheave assembly with 140 mm aluminium sheave |
Art. 11239