deva.glide technical handbook - Federal-Mogul Deva - #9

In order to ensure a sustainable low coefficient of friction with minimal wear, it is necessary to maintain appropiate mating surface properties, for example surface hardness and roughness. Table 4.1 shows the recommended hardness values and surface finish for optimal use of the deva.glide® materials.

In order to obtain a suitable surface finish it is also possible to use shaft sleeves of a suitable hardness. With restrictions hard-facing or galvanic protective layers (normally coated, hard-chromium-plated or nickel-plated) are thinkable. The required corrosion protection of the mating material is determined by actual operating conditions. The adjacent table provides an overview of some of the possible mating materials.

¹⁾ Materials in the table are not suitable for use with dg03 and dg04 without surface treatment due to their hardness < 300 HB.

Table 4.2 - Recommended mating materials

9