Motor and Trailer Bogies for Heavy Metro Vehicles - Siemens

SF 2100 IB
Motor and Trailer Bogies for Heavy Rail Metro Vehicles
The SF 2100 IB motor and trailer bogies
are designed for use on heavy weight
metro vehicles with maximum speed of
100 km/h and a maximum axle load of
14 t.
The bogies are designed with two axles,
inner bearing, megi springs as a primary
suspension and air spring as a secondary
suspension.
The wheelbase of 2400 mm enables the
bogies to be track friendly and
particularly suitable for negotiating
small radii of curvature.
The primary suspension system is
equipped with Chevron springs,
ensuring good self damping
characteristics and longitudinal and
lateral flexible axle guidance.
The primary suspension is mounted
between the bogie frame and the axle
box. The Chevron springs serves as an
axle guidance and as a primary
suspension.
The secondary suspension system
features air springs and offers optimum
ride quality as well as the possibility of
level adjustment in the secondary
suspension.
The secondary longitudinal guidance is
achieved by a centre pivot pin. This
arrangement ensures low wheel load
reduction.
Axle mounted disc brakes are provided
as mechanical brakes. We have
developed an efficient bogie type of the
highest reliability with perfect
maintainability, high flexibility and
excellent running behaviour.
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