Harken McLube OneDrop Ball Bearing Conditioner 7875

A single drop of McLube OneDrop applied to the traveller track restores smooth ball movement, even when performance has deteriorated due to roughness or contamination. Its formula protects against salt, dirt and debris while sealing the surface of the bearings, reducing friction so they roll freely and evenly again for improved traveller performance.

OneDrop is a high-performance marine lubricant specifically developed for ball bearing systems and moving deck hardware. It is designed to reduce rolling friction, improve mechanical efficiency and extend the service life of components exposed to demanding marine environments.

This premium synthetic lubricant conditions and protects bearings, ensuring smooth and consistent operation while preventing uneven sliding and reducing surface wear. Its advanced formulation repels salt, dirt and other contaminants, helping to keep systems clean and efficient over time.

Unlike traditional lubricants, OneDrop does not attract particles or create sticky residues, ensuring consistent performance even in saltwater conditions. Its precision applicator allows accurate dosing, minimising waste and preventing over-application.

OneDrop is widely used in sailing and marine maintenance. It is suitable for blocks, pulleys, tracks, travellers, furling systems, winches (external components) and other deck hardware.

Directions for use: Read product warnings before use. Clean and dry the surface to be treated. Apply 1–2 drops directly to the friction point or bearing, operate the mechanism to distribute the product evenly and remove any excess if necessary.

For battcars or traveller cars, it is recommended to first clean the ball grooves using water and mild detergent while moving the car back and forth. Rinse thoroughly with fresh water, allow to dry, then apply 1–2 drops to the ball contact surfaces. Move the car several times to ensure proper distribution.