Gearboxes

Servogear Gearboxes

Servogear supplies reduction gearboxes as an integrated part of our controllable pitch propeller system. Our special gearbox design offers advantages and possibilities, especially if space is a limitation.

Key advantages/features:

• Gear housing made with cast iron ensures low noise levels
• A compact design, with rounded bottom to accommodate limited shaft angle
• Possibilities for PTO drive
• High quality gear wheels ensure low noise levels
• Integrated servo system for pitch alteration
• Custom built gearbox mountings
• Tailor-made gearboxes
• Can be supplied with elastic gearbox suspensions.
• All Servogear gearboxes are approved by DNV GL

Gearbox series

HD220:

The Servogear HD220 gearbox (download PDF) is available for H-gear configuration and U-gear configuration. The H-gear configuration can either be as a freestanding gearbox or flanged to the engine via a SAE 1 flange. The gearbox can be supplied with one or two primary driven non-clutchable PTO drives max rated at 2 x 910Nm. Available reduction ratios for the gearbox is. 2,148: 1, 2,609:1, 2,952:1. 

View references equipped with HD220.

HD250:

The Servogear HD250 gearbox (download PDF) is available for H-gear configuration, U-gear configuration, and PTI-gear configuration. The H drive can either be as a freestanding gearbox or flanged to the engine via a SAE 1 flange. The H and U configurated gearbox can be supplied with the possibility to run a primary driven non-clutchable PTO pump rated at max 420Nm. Available reduction ratios for the gearbox is. 2,16: 1, 2,63:1. 

View references equipped with HD250..

HD295:

The Servogear HD295 gearbox (download PDF) is available for H-gear configuration, U-gear configuration and PTI-gear configuration. Special upside-down configuration can be supplied for H-gear configuration and PTI hybrid drive. The upside-down configuration is specially adapted for the SWATH`s. The H-gear configuration can only be as a freestanding gearbox. The gearbox can be supplied with the possibility to run a primary driven non-clutchable PTO pump rated at max 420Nm. Available reduction ratios for the gearbox is. 3,3: 1, 4,2:1.

View references equipped with HD295.

HD450:

Servogear HD450 gearbox (download PDF) is available for a PTI-gear configuration. Available reduction ratio for the gearbox is. 5,0: 1. 

View references equipped with HD450.

HDE220 HYBRID:

We are proud to introduce our first hybrid gearbox solution (download PDF):

• Plug in hybrid 

• Max input 900 kW @ 2250 rpm

• PTO with clutch
• Same footprint as Servogear HD220
• Light weight AL-7075-T6 casing
• Integrated pitch actuation
• Integrated oil cooler
• Remote duplex filter unit

Downloads

Flexible Gearbox Applications

We offer full customization of shaft arrangements. The following illustrations show the three usual configurations:

H-gear configuration:

This is the standard configuration and is recommended when available space allows it.

U-gear configuration:

This is the best solution when space is limited.

PTI-gear configuration:

This is the most flexible configuration. Depending on the desired speed and/or if the design of the vessel calls for two small engines instead of one large engine; the propeller can be run optimally on one or two engines. This configuration is ideal for the hull of catamaran vessels.