Alexander bearing oil

A recommended oil for lubricating the bearings inside rotary valves. Use sparingly each week. Suitable for all rotary valve instruments.

Contents: 10 ml (0.34 fl oz)

Modern French horn rotary valves require three different grades of oil. From thickest to thinnest they are: bearing oil, linkage oil and rotor oil. Apply the first two each week, if you play regularly. When a valve become sluggish, drip a tiny quantity of rotor oil directly into the rotor casing, having first removed the valve slide to allow access.