Boosting bogie performance 18 May 2019 BOGIES: Anti-vibration specialist Trelleborg and Bombardier Transportation have developed a hydraulic axle guide element for Bomabardier’s Flexx family of bogies which provides frequency-dependent longitudinal stiffness. This reduces wheel and track wear, energy consumption and curve squeal noise. Flexx Curve can be installed in all past and planned Flexx Compact…