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Renewable Energy

Renewable Energy Brochure
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The Unsung Heroes:

Power Transmission Belts in Renewables

Power transmission belts play a supporting role in various renewable energy applications. They are used to connect the drive shafts of wind turbines, solar trackers, and hydroelectric generators to gearboxes or directly to machinery. These belts, often of synchronous or V-belt varieties, efficiently transfer rotational energy captured from the wind, sun, or moving water. This allows for smooth operation and the conversion of renewable energy sources into usable mechanical or electrical power.

Wind Turbines
  • Gearboxes: Belts are used in the gearbox systems of wind turbines to transmit power from the turbine blades to the generator.

  • Yaw and Pitch Systems: Belts help in adjusting the yaw (rotation around the vertical axis) and pitch (angle of the blades) systems, ensuring optimal orientation of the blades to the wind.
Solar Power Plants
  • Tracking Systems: In solar tracking systems, belts are used to adjust the position of solar panels to follow the sun, maximizing energy capture.

  • Cooling Systems: Belts drive fans and other cooling equipment needed to maintain optimal operating temperatures for solar power equipment.
Hydropower Plants
  • Turbine Generators: Belts are used in coupling the turbine to the generator, transmitting mechanical energy to electrical energy.

  • Auxiliary Systems: Belts drive auxiliary systems such as cooling pumps and lubrication systems.
Geothermal Plants
  • Pumps and Compressors: Belts are used in driving pumps and compressors that circulate geothermal fluids.

  • Auxiliary Systems: Similar to other plants, belts drive various auxiliary systems required for plant operation.
Biomass Energy Plants
  • Conveyors: Belts are integral in conveyor systems that transport biomass materials to processing areas.

  • Processing Equipment: They are used in various machinery involved in grinding, chipping, and other preparation processes for biomass materials.
Ocean Energy Plants

In ocean energy plants, power transmission belts need to be robust and capable of withstanding the harsh marine environment, including exposure to saltwater, high humidity, and fluctuating temperatures. The efficiency and reliability of these belts are critical for the continuous and effective operation of ocean energy plants. Here are some specific applications:


Wave Energy Converters


  • Power Take-Off (PTO) Systems: Belts can be used in the PTO systems of wave energy converters to transmit mechanical energy from the oscillating movement of the waves to the generator.

  • Hydraulic Systems: In systems that use hydraulic power, belts can drive pumps that convert the mechanical energy of the waves into hydraulic energy, which is then converted to electrical energy.

Tidal Energy Converters


  • Turbine Gearboxes: Similar to wind turbines, tidal energy turbines use gearboxes where belts can be used to transmit power from the rotating blades to the generator.

  • Pitch and Yaw Systems: Belts can help adjust the orientation and angle of the turbine blades to optimize energy capture from tidal currents.

Ocean Thermal Energy Conversion (OTEC) Plants


  • Pumps and Compressors: Belts can drive pumps and compressors used to circulate working fluids in OTEC systems, which rely on temperature differences between surface and deep ocean water to generate power.

  • Auxiliary Systems: Belts can be used in various auxiliary systems such as cooling systems, lubrication systems, and other support equipment.

Salinity Gradient Power Plants


  • Osmotic Pressure Systems: In salinity gradient power plants, belts can drive pumps and other equipment that utilize the osmotic pressure difference between seawater and freshwater to generate power.

  • Auxiliary Equipment: As with other types of power plants, belts can drive auxiliary equipment required for the operation of the plant.


At the heart of the global shift towards clean energy, timing belts silently orchestrate the smooth operation of wind turbine generators, geothermal fin fans, solar panel tracker drives, biomass fuel handling equipment, and more. 

Mitsuboshi’s Giga Torque GX and Mega Torque EP belts ensure precise timing and coordination, minimizing energy losses and maximizing output. 

Their robust construction and minimal maintenance requirements translate to reduced downtime and costs, making them the reliable workhorses of clean energy. 

Giga Torque GX
Supreme Belt Technology
  • Carbon Fiber Cord: Unmatched in strength and lightness, allowing for sleek, space-efficient designs.
  • Weight Minimization: Reduces stress on bearings and shafts, optimizing system performance.
Extended Lifespan
  • Engineered for Durability: Superior materials and design ensure longevity with minimal maintenance.
  • Reduced Downtime: Less maintenance needed for sustained clean energy production.
  • Waste Reduction: Durable construction minimizes replacements, reducing waste.
Quiet Operation
  • Noise Reduction: Low-friction coating minimizes noise, ideal for noise-sensitive environments.
  • Peace of Mind: Quiet operation for various applications.

Mega Torque EP
Optimal Power Transmission
  • High torque handling: EPDM rubber and versatile GP tooth profile for efficient, smooth power transfer.
  • Reduced skipping: High jumping torque prevents belt jumps during sudden changes in speed.
Superior Durability
  • Abrasion-resistant fabric: Withstands harsh environments and extended use.
  • Durable construction: Robust materials and design for longer lifespan, minimizing maintenance.
Reliable Performance
  • Versatile: GP profile suitable for H, GT,™ and R pulleys.
  • Cost-effective: Durable lifespan offsets initial investment with lower maintenance costs.
  • Reliable: Consistent performance under demanding conditions.

MBL (USA) Corporation manufactures and distributes power transmission belts for original equipment and service parts in the automotive, recreational, and industrial markets.

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(815) 434-1282

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Ottawa, Illinois 61350 USA