Marine/Boat Trailer Bearings
-- Steady & Reliable Manufacturer --
Brief Description
Corrosion-resistant bearings featuring robust multi-lip seals and specialized marine-grade grease, designed to survive repeated saltwater immersion and high road speeds.
Introduction
Bearings on boat trailers face the challenge of operating at highway speeds, followed by direct immersion in corrosive saltwater or fresh water, a process that rapidly destroys standard bearings. We focus on providing highly sealed solutions, typically Tapered Roller Bearings or Double Row Angular Contact Bearings combined with heavy-duty multi-lip seals and bearing protectors (like Bearing Buddies). The bearings are pre-packed with marine-grade, water-resistant lithium complex grease, ensuring the integrity of the hub assembly is maintained even under the harshest marine conditions.
Related products
Specification Standards
| Key Feature | Common Type | NSB Offering |
|---|---|---|
| Corrosion Resistance | High to Extreme | Often supplied in kits with seals and retaining devices. |
| Sealing System | Heavy-Duty Double or Triple Lip Seals | Essential for blocking water ingress during submersion. |
| Lubrication | Marine-Grade Lithium Complex Grease | High resistance to water washout and emulsion. |
| Size Focus | Inch Series Common | Catering to historical trailer axle standards. |
| Load Focus | Moderate to Heavy Static/Dynamic Load | Handling the weight of the boat and road forces. |
Applications
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Boat Trailer Axles: For all sizes of recreational and commercial boat trailers.
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Jet Ski & Utility Trailers: Lighter systems still requiring maximum water exclusion.
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Marine Winches: Load-bearing components in boat lifting systems.
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Dockside Cranes: Components exposed to constant humidity and splash.
Key Advantages
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Waterproof Seal Integrity: Specialized sealing prevents the catastrophic failure caused by water mixing with lubricant.
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Superior Corrosion Protection: Materials and grease are selected to resist rust from saltwater and coastal air.
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High Reliability on the Road: Designed to handle sustained high temperatures and loads typical of highway travel.
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Complete Kit Solutions: Often supplied with all necessary cones, cups, and seals for easy replacement.
About Us
NINGBO SANYA BEARING CO., LTD.
Ningbo Sanya Bearing Co., Ltd. is a professional China Marine/Boat Trailer Bearings Manufacturers and Custom Marine/Boat Trailer Bearings Suppliers.And it established in 1994 stands right at the prime location of the Yangtze River Delta. Specialized in the production of high-quality deep groove ball bearings and insert bearings. It has emerged as a modern company integrating product development, design, manufacturing, sales and service. It can produce bearings with an inner diameter of 3mm to 100mm and customize various non-standard Custom Series 6000 Two Contact Seals Deep Groove Ball Bearing with highly-automated equipment, stable quality, and complete testing methods ensuring the quality of its products. With the vigorous development of the foreign trade department, our business in bearing production and sales in 2018 far exceeded 20 million US dollars, and the products were sold in more than 50 countries and regions.
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