The FSL series is an adjustable linear guide bushing manufactured by Spieth. It has a common ISO tolerance level and its assembling play permits easy mounting even for large dimensions. The required narrow guidance play is adjustable to fit the current process where the minor geometrical errors can form the surrounding elements and operational influences will be taken into account. For the FSK - FSL series, the guide play is simply set using the integrated clamping screws.
Due to the series' individually acting clamping screws the FSK - FSL series guide bushings permit individual sectoral guide play adjustment. This permits, for example, a limited degree of compensation for out-of-round housing boreholes. After removal and remounting, however, the optimum degree of guide play has to be adjusted again.