The invention relates to a bogie for a rail vehicle characterized by a high lightweight construction potential. The bogie (1, 1*, 1**) according to the invention has, for primary suspension, a torsion spring system (12) in the inner volume of which a roll stabilizer having a torsion rod (11) is arranged in a torsionally movable manner. The roll stabilizer can be articulated to the car body of the rail vehicle or to the torsion spring system (12). The bogie (1, 1*, 1**) according to the invention advantageously has a particularly large installation space for built-in components.

A chassis (100), in particular a low-floor chassis, for a rail vehicle, in particular for a tram-way. The chassis (100) comprises at least four wheels (4) each having a wheel bearing, at least two wheel axles for suspending the wheels (4), a chassis frame (1) and a primary suspension for suspending the wheels (4) relative to the chassis frame (1). The primary suspension has at least four torsion bars (20). Two torsion bars (20) each, in particular two torsion bars on one side of the chassis, are connected via a connecting element (21) in such a way that the torque of the torsion bars (20) oppose each other, in particular the torques essentially cancel each other out.

Bogie includes: cross beam supporting carbody of railcar; wheels provided at each of both car width direction sides of bogie to be lined up in car longitudinal direction; front and rear axles each connecting wheels positioned at respective left and right car width direction sides of bogie to each other; bearings provided at both respective car width direction sides of front and rear axles and rotatably supporting front and rear axles; axle boxes accommodating respective bearings; plate springs of fiber-reinforced resin and extending in car longitudinal direction support both respective car width direction end portions of cross beam, both car longitudinal direction end portions of plate springs supported by respective axle boxes; electrically nonconductive buffer members each interposed between plate spring and axle box; electrically nonconductive contacting members each interposed between plate spring and cross beam; and plate spring cover covering part of plate spring and electrically connected to wheel.

A chassis (100), in particular a low-floor chassis, for a rail vehicle, in particular for a tram-way. The chassis (100) comprises at least four wheels (4) each having a wheel bearing, at least two wheel axles for suspending the wheels (4), a chassis frame (1) and a primary suspension for suspending the wheels (4) relative to the chassis frame (1). The primary suspension has at least four torsion bars (20). Two torsion bars (20) each, in particular two torsion bars on one side of the chassis, are connected via a connecting element (21) in such a way that the torque of the torsion bars (20) oppose each other, in particular the torques essentially cancel each other out.