Wärtsilä Single Input Gears
Gears with single input and single propeller speed. Wärtsilä designation SCV for vertical offset, and SCH for horizontal offset. Available with or without clutch.
The design is modular, reliable, compact, and sturdy for easy installation and maintenance.The gearwheels have single helical teeth, that are precision ground with profile correction to secure both good load distribution and low noise operation.
The power ranges are 1-24 MW for the vertical offset type, and 3-24 MW for horizontal offset types.
The following standard options are available:
- Integrated thrust bearing
- Integrated hydraulic clutch
- Power take off for shaft generator (PTO)
- Power take in for electric motor (PTI)
- Connection for OD-Box
- Gear driven oil pumps
For gear sizes 50-95, the hydraulic system for CPP is integrated within the gear.
Two speed PTOs are available for some sizes.
Single Input Gears - power range
Conditions for use
The 2D and 3D models and drawings downloaded (”Marine Solutions Drawings”) are for general guidance purposes only and should not be used for actual projects. Models and drawings for specific projects must be obtained from the appropriate Wärtsilä personnel as there may be deviations from the Downloadable Files.
File formats supported include DXF and PDF for 2D models and IGES, STEP, DXF, SAT and WRML for 3D models. A 2D DXF or PDF should always be used to support the 3D models. The Downloadable Files are subject to changes or improvements by Wärtsilä without notification so please check regularly for new and updated files at www.wartsila.com.
Wärtsilä takes no responsibility for and disclaims any liability for the contents of the Downloadable Files, including but not limited to omissions, errors, deficiencies, inaccuracies contained therein, and the use or misuse thereof. In no event, shall Wärtsilä be liable for any consequential, special, contingent, or incidental damages or injury, financial or otherwise, suffered by any party arising out of, connected with, or resulting from the use of the Downloadable Files or the information contained therein.
This website contains information, which is owned by or licensed to Wärtsilä. Wärtsilä shall retain all rights, including copyrights, relating to the information in the Downloadable Files. Reproduction or transmission to third parties is prohibited without prior written approval of Wärtsilä. Copyright © Wärtsilä.
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- Wärtsilä Single Input Gears SCV50 Archive File, 4Mb »
- Wärtsilä Single Input Gears SCV56 Archive File, 4Mb »
- Wärtsilä Single Input Gears SCV62 Archive File, 5Mb »
- Wärtsilä Single Input Gears SCV68 Archive File, 5Mb »
- Wärtsilä Single Input Gears SCV75 Archive File, 4Mb »
- Wärtsilä Single Input Gears SCV85 Archive File, 4Mb »
- Wärtsilä Single Input Gears SCV95 Archive File, 4Mb »
- Wärtsilä Single Input Gears SCV105 Archive File, 1Mb »
- Wärtsilä Single Input Gears SCV110 Archive File, 2Mb »
- Wärtsilä Single Input Gears SCV116 Archive File, 4Mb »
- Wärtsilä Single Input Gears SCV128 Archive File, 2Mb »
All Wärtsilä gears can be supplied with one or more PTOs for driving the shaft alternator, compressor or pump. For single vertical and horizontal gears, the standard PTO is primary driven. For double gears, the PTO is optionally primary or secondary driven.
A primary driven PTO is rotating whenever the engine is rotating.
A secondary driven PTO is rotating whenever the propeller shaft is rotating.
Most Wärtsilä gears can be supplied with a combined PTO/PTI. In PTI mode the shaft alternator can also be used as an electric motor. PTI is normally used for the following operation modes:
PTI “Booster” mode is used when the main power of the engine is too small, in order to increase the total propulsion power. For this mode, no clutches are required on the gear.
PTI “Take me home” mode is used in case of emergency, if the prime mover is out of operation. For this mode a minimum of 2 clutches are required on the gear.
Most Wärtsilä gears are purpose-designed with an integrated hydraulic system for both the gear and the CP propeller. As the separate hydraulic power unit for the CP propeller is superfluous, both installation costs for the yard and operational costs for the owner are reduced. For safety reasons the gear mechanically drives the main pump for the propeller. All gears can also be interfaced to a separate hydraulic power unit.
For the 16400 dwt chemical tanker ‘Sten Idun’, delivered in 2003, Wärtsilä is supplying an extensive machinery package that includes a Wärtsilä 6L46 main engine, gearbox, controllable pitch propeller and rudder. »