The ROSTA tensioning element type SE-FE is designed for front mounting applications on engines such as cooling compressors and fan drives. Steel parts are black painted.

Today nearly all buses for passenger transport are equipped with an air-conditioning system. The diesel engine of the bus serves thereby as an energy source for the cooling compressor. The piston- or rotation compressors are driven via V- or Poly-V belts from the spur wheel of the main engine. This belt transmission requires a slippage-free power train to ensure the full capacity of the cooling compressors.

ROSTA designed a heat-resistant tensioner for this specific application – powerful and compact with a long compensation travel.