H Series Hollow Shaft Parallel Helical Gearbox

About product

The H Series Hollow Shaft Parallel Helical Gearbox is specifically designed for marine winch applications. It features a hollow shaft configuration, making it compatible with the shaft of a marine winch, allowing for direct power transmission.

This gearbox offers a parallel helical gear arrangement, providing high efficiency and smooth operation. It is designed to handle the demanding requirements of marine winch systems, offering robustness and durability in harsh marine environments.

Parallel Helical Gearbox Drawing

Additional information


Gear Reducer

Gear Shape

Helical Gear





Product Detail

With its compact design and precise engineering, the Marine H Series Hollow Shaft Parallel Helical Gearbox ensures reliable and efficient power transmission. It is capable of handling heavy loads and providing the necessary torque for marine winch operations.

The gearbox is designed to withstand the challenging conditions of marine applications, including corrosion, vibrations, and variations in temperature and humidity. It is built to deliver reliable performance, ensuring the smooth and efficient operation of the marine winch.

Why Use Hollow Shaft?

Using a hollow shaft configuration in a gearbox offers several advantages in specific applications, such as marine winches. Here are a few reasons why a hollow shaft may be preferred:

  • Direct Power Transmission: A hollow shaft gearbox allows for direct power transmission from the motor to the driven equipment, such as a marine winch. The hollow shaft can be directly coupled with the shaft of the winch, eliminating the need for additional coupling components. This direct connection enhances power transmission efficiency and reduces the risk of misalignment or mechanical losses.
  • Space Efficiency: The hollow shaft design provides a compact solution, especially in applications where space is limited. By eliminating the need for additional coupling components, the overall footprint of the gearbox system can be reduced. This is particularly advantageous in marine winches, where space onboard vessels or offshore platforms is often limited.
  • Weight Reduction: The use of a hollow shaft gearbox can contribute to weight reduction in the system. By eliminating redundant coupling components, the overall weight of the power transmission system can be reduced, which is beneficial in marine applications where weight restrictions may be a concern.
  • Increased Stability: The direct connection between the hollow shaft gearbox and the driven equipment enhances the stability and rigidity of the system. This can help minimize vibrations and ensure precise and reliable power transmission, especially in dynamic marine environments where stability and performance are critical.

H Series Hollow Shaft Parallel Helical Gearbox Parameter




Know Who We Are

About our company

Zava Marine Corporation is a leading supplier of marine parts and components. With a strong focus on quality and customer satisfaction, we specialize in providing a comprehensive range of high-quality marine equipment and accessories. Our products include deck equipment, ship accessories, and various other essential components needed for smooth maritime operations.

With a global presence, we serve a diverse customer base, including shipbuilders, shipowners, offshore operators, and marine equipment distributors. We are committed to providing exceptional service and tailored solutions to meet our customers’ unique needs.


Zava Marine offers a comprehensive range of certifications for marine parts in accordance with international standards and regulations. These certifications include those provided by renowned marine classification societies such as Lloyd’s Register (LR), Bureau Veritas (BV), China Classification Society (CCS), Registro Italiano Navale (RINA), American Bureau of Shipping (ABS), Nippon Kaiji Kyokai (NK), and Det Norske Veritas – Germanischer Lloyd (DNV-GL). By collaborating with these esteemed societies, Zava Marine ensures that our certified marine parts meet the highest standards of safety, quality, and performance, instilling confidence in our reliability and compliance within the maritime industry.

The warranty provided by Zava Marine covers defects in materials and workmanship for a period of two years from the date of purchase. During this warranty period, if any marine parts purchased from Zava Marine exhibit issues or failures resulting from manufacturing defects or faulty materials, Zava Marine will take responsibility for repair or replacement of the affected parts. 

Zava Marine has recently opened new molds for European and North American clients, utilizing materials such as metal, ABS, PVC, and more. These successful mold opening projects allow us to provide customized marine parts and components that meet the specific requirements of our clients in these regions.

Typically, Zava Marine can ship samples within 7 days once the product drawing has been mutually confirmed by both parties. This efficient process ensures that customers can receive samples promptly, allowing them to assess the quality and suitability of the products.

Zava Marine frequently utilizes a wide range of materials in our projects. These materials include aluminum, stainless steel, carbon steel, copper, plastics, titanium, and PEEK (Polyether Ether Ketone). Each material offers unique properties and characteristics suitable for various marine applications. 

Yes, we provide customization services for marine parts. We understand that every project and application may have unique requirements, and we are committed to delivering tailored solutions. By collaborating closely with our clients, we can adapt our products to specific specifications, ensuring optimal fit, performance, and compatibility. Whether it’s modifying existing designs or creating entirely new parts, our customization services cater to the diverse needs of the maritime industry.

Absolutely! We offer product design and development services to support our clients’ needs. Our experienced team of engineers and designers can collaborate with clients from concept development to final product realization. By leveraging our expertise in marine engineering and design, we can provide valuable insights and innovative solutions. Whether it’s optimizing existing designs or creating entirely new products, we are equipped to assist clients in bringing their ideas to life efficiently and effectively.

Let's have a chat

Ask for a quote

Zava Marine