Material: Casing made of sintered steel or grey cast iron GG20, lever made of St52.

The design of these tensioning elements is identical to the standard version, but they are zinc-plated and the synthetic spring elements are resistant to mineral oils. These components are especially suited for 'outdoor' applications, e.g. for construction machinery or for use inside the oilbath of a gearbox. The tensioning elements are marked with a yellow dot on the lever. Can be used for both tensioning directions.

Temperature range: -30°C to -90°C.