Deepwater Gearhead

Unlike traditional IP68 sealed units, Subsea Formula’s water-flooded design eliminates the primary failure modes of sealed underwater gearheads - seal degradation and pressure compensation failure - while delivering exceptional reliability and efficiency. Internal water equalization eliminates pressure differentials, allowing design without sealed chambers or pressure compensation systems.

The design reduces costs through higher durability, reliability, and low maintenance requirements. The gearheads achieve high efficiency ratings and allows for quiet, smooth operation with minimized vibration levels.

The water-flooded design provides natural cooling, preventing heat buildup and eliminating thermal degradation common in sealed units.

The relatively low rotational inertia makes these gearheads ideal for applications requiring stop/start and reversing operation.

Subsea Formula produces high-quality gearheads and assemblies using extensive production machinery and experienced engineering.

Gearhead Specifications

Specification	Details
Depth rating	3,000 or 6,000 meters
IP rating	N/A, the gearhead has a water-flooded design
Operating Temperature	0°C to +38°C, optimized for 0°C to +5°C
Max gear ratio	1:76,755
Motor speed	up 3,000 RPM, upgradable to 7,000 RPM
Backlash	zero/low backlash
Installation position	vertical, horizontal, or any angle
Maintenance	Rinse thoroughly with fresh water after each deployment. No internal servicing required, no oil changes or seal replacements needed
Material	316 steel or titanium
Service life	10,000+ hours for 316 steel

Gearhead Options

Below you can find a few examples of gearhead configurations. The final specifications are tailored to meet specific customer requirements.

Specification	GHS-903	GHT-903	GHS-76755
Gear Ratio	1:903	1:903	1:76,755
Output Torque	2,520 Nm	2,520 Nm	214,200 Nm
Material	316 steel	Titanium	316 steel
Size	⌀200 mm, len 50 mm	⌀200 mm, len 50 mm	⌀400 mm, len 1,000 mm
Air Weight	3 kg	1.5 kg	600 kg
Input	up to 3,000 RPM	up to 3,000 RPM	up to 3,000 RPM

Configuration options:

• Custom gear ratio, output torque, output shaft shape and dimensions, and other specifications according to the customers’ requirements
• Titanium construction for premium corrosion resistance and durability
• Supports various DC motor types and is available as factory-integrated motor-gearhead assemblies.

A gearhead is also known as a gear reducer, gearbox, or enclosed speed reducer.