ManeCraft mechanical seal type EM-metric Ø 25-50 mm
Product number:
maneCraft-SET2EM
Product information "ManeCraft mechanical seal type EM-metric Ø 25-50 mm"
The maneCraft sterntube seal has been specifically designed to meet the demands of today's recreational and commercial marine industry. maneCraft benefits from the decades of experience of John Crane Marine International, a leader in the manufacture of sealing systems for marine and commercial shipping in over 100 nations.
- Drip-free - your bilge stays dry and clean
- Self-adjusting - This seal automatically compensates for wear and, unlike stuffing boxes, requires no adjustment
- Maintenance-free - Once installed, the seal requires no maintenance. Nevertheless, an inspection should be carried out at regular intervals! The maneCraft seal has a built-in emergency stop device and is classified by Germanischer Lloyd.
maneCraft seals are easy to install. They replace old stuffing box systems. They do not need to be packed with gland packing and do not need to be readjusted. There is also no risk of the seal cutting into the shaft. The maneCraft mechanical seal replaces the stuffing box without having to replace the propeller shaft, even if there are constrictions in the shaft surface caused by the old stuffing box packing. All you need to do is carry out a regular inspection after the seal has been fitted in accordance with the installation instructions. This should be carried out in conjunction with the inspection of sea hoses, sea valves and other elements located below the waterline.
To calculate the shaft revolutions, use the following calculation:
nshaft = max. motor revolutions : gear ratio
For higher speeds, all sets mentioned are also available as high-speed versions. In this case, please contact us, we will be happy to advise you.
Set + shaft diameter (metric / inch) | stern tube diameter | max. shaft rotation |
EM 2 25mm / 1" - 1 1/8" | 35mm - 43mm | 1800 |
EM 3 25mm / 1" - 1 1/8" | 43mm - 51mm | 1800 |
EM 4 30mm / 1 1/4" | 43mm - 51mm | 1740 |
EM 5 30mm / 1 1/4" | 51mm - 60mm | 1740 |
EM 6 35-40mm / 1 3/8" - 1 1/2" | 51mm - 60mm | 1670 |
EM 7 35-40mm / 1 3/8" - 1 1/2" | 60mm - 70mm | 1670 |
EM 8 45mm / 1 3/4" | 70mm - 80mm | 1560 |
EM 9 50mm / 2" | 70mm - 80mm | 1560 |
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