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 busses for passenger transport are equipped with an air-conditioning system. The diesel engine of the bus serves thereby as an energy source of the cooling compressor. The piston or rotation compressors are driven via Polly-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 this specific application for a heat resistant tensioner - powerfull, compact with a long compensation travel.