Protect your trailer and boat wheel bearings effectively with this high-quality Bearing Buddy, designed to fit hub diameters of 1.98 inches. Crafted from durable stainless steel, this bearing protector ensures long-lasting performance and reliable protection against water, dust, and contaminants that can cause costly mechanical damage. Key Features: · Perfect Fit for 1.98in Hub Diameter: Specifically designed to fit most trailers and boats with a 1.98-inch hub, providing a secure and tight seal for optimal bearing protection. · Spring-Loaded Piston Technology: Maintains a consistent pressure of 3 psi on the grease inside the bearing, creating a protective barrier that prevents water and dust intrusion while enhancing bearing longevity. · Automatic Pressure Relief Valve: Built-in feature prevents overfilling and over-pressurization, ensuring safe, mess-free operation and avoiding potential damage to bearings. · Easy Installation and Maintenance: Simple to mount with no complex tools required; just remove the cap to fill with a grease gun and monitor grease levels conveniently at any time. · Economical and Durable Solution: Stainless steel construction delivers exceptional resistance to corrosion and wear, offering a cost-effective method to extend bearing life and prevent serious mechanical problems. Specifications: · Item Type: Bearing Buddy · Material: Stainless Steel · Application: Fits most trailers and boats with 1.98in hub diameter Package Includes: · 1 x Bearing Buddy Enhance the durability of your wheel bearings and avoid costly repairs with this robust Bearing Buddy, engineered for ease of use and maximum protection in marine and trailer applications.