OEM/ODM Gear Bearings

Non-standard Waterproof Gear Bearing

Item Number: BLH6905
Brand: BLH
Specifications: 20.66MM/21.5MM*52.5MM*18MM
Bearing Weight: 35g
Inner and Outer Ring Material: Customized POM 90-44
Steel Ball Material: SUS316
Cage Material: PA66+GF30%
Seal Material: SUS304+Environmentally Friendly Nitrile Rubber
Packaging Requirements: Bagged
Radial Clearance: 0.015~0.025mm
Other: BLH bearing factory can customize production according to user's working conditions and dimensions.

In high-end fields such as marine exploration and underwater cleaning, the stable operation of intelligent robot equipment directly depends on the performance of core transmission components. As a key link in power transmission, the quality and adaptability of BLH bearings determine the success or failure of the entire operation. As a manufacturer with many years of experience in bearing transmission parts production, we consistently focus on the application needs of extreme underwater environments. Our self-developed gear bearings, with their superior waterproof and corrosion-resistant properties, have become the preferred partner for many underwater robot R&D companies and deep-sea operation equipment manufacturers.

Underwater robots operating in the ocean face extreme environments characterized by high pressure, high salinity, and strong corrosion. Ordinary bearings often experience seal failure and component corrosion within a short period, leading to equipment downtime or even complete breakdown. BLH Bearing Factory's gear bearings address these issues from the design stage: employing a special sealing structure combined with seawater-resistant composite materials, they maintain stable transmission accuracy even after over 2000 hours of deep-sea environment simulation testing. With a waterproof rating of IP68 or higher, they effectively resist seawater penetration at depths of 3000 meters, completely solving the "short-lived" problem of traditional bearings in underwater scenarios.

In actual use, a deep-sea exploration equipment company purchased ordinary bearings for its independently developed underwater robot. However, during operations at a depth of 1500 meters in the South China Sea, bearing seal failure led to seawater intrusion, causing not only a malfunction in the robot's power system but also delaying a 10-month seabed resource exploration mission. After the company switched to our gear bearings, they completed six consecutive deep-sea operations (each lasting over 72 hours) without any malfunctions, reducing equipment maintenance costs by 40% and significantly improving operational efficiency.

BLH Bearings understands that different underwater equipment has different requirements for gears and bearings. Therefore, it has created a diversified product system covering a variety of specialized models to meet the transmission needs of different equipment such as underwater robots, deep-sea detectors, marine life detectors, and high-end underwater engineering machinery:

• Planetary gear bearing: Utilizing a high-precision tooth profile design, it achieves a transmission efficiency of over 98%, providing strong and stable power for the propulsion system of underwater robots. In a certain type of underwater cruise robot, it can support continuous navigation for 120 hours without power attenuation.

• Slew gear bearing and slewing bearing with external gear/external gear slewing bearing: Specifically designed for the steering mechanism and probe arm of underwater robots, it can achieve 360-degree rotation without blind spots and possesses excellent resistance to seawater corrosion. In deep-sea topographic exploration operations, it ensures the flexible rotation and precise positioning of the probe arm.

• Helical bearing: Adapted to the propeller drive system of underwater robots, its unique helical structure design reduces seawater resistance and improves propulsion efficiency. Simultaneously, its excellent sealing performance effectively prevents seawater from entering the bearing and causing damage.

• Pinion race driver: Integrating pinion bearing and race drive functions, it features a compact structure and convenient installation. It provides precise driving force for small actuators of underwater robots (such as sampling claws). In deep-sea biological sample collection operations, it can achieve precise grasping of microorganisms. This series of bearings is widely used in the general civilian field in underwater cleaning equipment, achieving breakthrough results. For example, in tracked cleaning robots, after climbing vertically upwards for 150 cm, the robot falls, and the bearing remains intact.

As a partner of Dalc Gear & Bearing Supply Corp., we possess stable production capabilities and a comprehensive supply chain system, ensuring a continuous supply of products to meet customers' bulk purchasing needs. Regarding pricing, we consistently adhere to the principle of "high quality, reasonable price," providing customers with cost-effective products. Whether it's standard gear bearings or custom-designed models (such as bearings specifically for underwater equipment), all undergo rigorous cost calculations to reduce procurement costs for customers while ensuring product quality.

It's worth mentioning that we not only supply underwater gear bearings but also provide compatible bearings for equipment in other fields, such as Honda Activa gear box bearings. These are also competitively priced and meet original equipment manufacturer (OEM) standards, satisfying the purchasing needs of motorcycle repair shops and parts distributors.

For 20 years, our gear bearings have served numerous domestic and international underwater equipment R&D companies and deep-sea operation units, earning unanimous recognition from our clients. A representative from a deep-sea engineering technology company stated, "Before cooperating with them, we tried bearings from several brands, but problems inevitably arose during deep-sea operations. However, after using the waterproof and corrosion-resistant gear bearings provided by BLH Bearing Factory, the equipment failure rate was significantly reduced, and the operational cycle was guaranteed, providing strong support for our deep-sea operation projects." In addition to high-quality products, we have established a comprehensive after-sales service system, providing customers with all-round services including technical consultation, installation guidance, and after-sales maintenance. If customers encounter problems during product use, our technical team can respond within 24 hours, providing timely solutions to ensure the normal operation of customer equipment.

In the future, we will continue to deepen our research and development and production of gear bearings, continuously improving the waterproof and corrosion-resistant performance and transmission accuracy of our products, and launching more specialized models suitable for underwater robots and deep-sea operation equipment, providing more reliable transmission guarantees for the development of my country's deep-sea exploration and underwater engineering. If you have any needs for purchasing gears and bearings, whether they are underwater-specific models or products suitable for other fields, please feel free to contact us. We will provide you with customized solutions and highly competitive gear and bearing prices.

For more information on waterproof bearing models and sizes, please contact BLH Bearing Factory.