Falex Tribology • Wingepark 23b • B-3110 Rotselaar • +32 (0)16 407 965
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Ball On Three Disk (BOTD) Test Machine


The Ball on Three Disk (BOTD) Test Stand is a light weight, compact, dedicated system for evaluating wear properties of diesel fuels and other low viscosity fluids.

The test stand incorporates an upper 1/2 inch diamter ball rotating at 60 rpm against three 1/4 inch diameter disks in a tetrahedral orientation.

The test stand predicts a diesel fuel's ability to prevent wear of moving parts in fuel injection systems.

Recently, the same test principle has been used to evaluate small differences in anti-wear properties of aqueous emulsions.


Full manufacturer's specifications can be found here.