Stainless Steel Boat Trailer Bearing Kit with Protective Grease Cap Compatible with 4 Bolt and 5 Bolt Lug Hubs

This bearing kit is designed for use with boat trailer hubs featuring 4 or 5 bolt/lug configurations.The bearing has a base diameter of 1.98 inches and is constructed entirely from stainless steel, including both the outer barrel and internal components, to resist corrosion in marine environments.It functions with a spring-loaded piston system that maintains approximately 3 psi of internal pressure when properly filled with grease.This pressure helps prevent water intrusion during submersion.A black indicator ring on the piston extends outward when the hub is fully greased and retracts when additional grease is needed.Grease is added via a central grease fitting.The kit includes a protective grease cap and is compatible with most standard 4 and 5 bolt/lug hub assemblies.During installation, hubs must be cleaned of old grease and , and bearings and seals inspected for damage, rust, or pitting.Replace any compromised components.Fill the hub completely with a multipurpose, NLGI No.2 grade lubricant suitable for automotive suspension applications.Avoid heavy or fibrous greases and do not mix grease types.

• Diameter Specification: Measures 1.98 inches in diameter for precise fit with specified boat trailer hub applications.
• Material Composition: Constructed from stainless steel to match the corrosion resistance and structural properties of the bearing kit.
• Grease Cap Inclusion: Includes grease caps with protective grease bra to maintain proper lubrication in the hub assembly.
• Bolt Pattern Compatibility: Fits most 4-bolt and 5-bolt lug hub configurations commonly used on boat trailers.
• Functional Purpose: Serves as a direct replacement bearing kit to restore hub rotation and load-bearing function.