Which lubricant should I use for the coupling?

Always use thin oil with good adhesion. We recommend VBG’s Mechanical Oil Do not use grease, as this traps sand and gravel and can also freeze.With VBG MechMatic, you never have to worry about lubrication. It is done completely automatically. In addition, the coupling is also automatically cleaned. This keeps the coupling in the best possible condition and extends its service life.