The rail fastening system of SB-type to the tram lines works with the pre-stressed monoblock sleepers using tram rails types R1, R2, 180S and 49E1 type of rail. The rail laid on the surface of the rail pad between anchors (constantly sunk in the sleeper) is mounted with the SB4-type rail clip (or interchangeably with other SB-type rail clip), connected from one side to the anchor, on the other side like a spring pressing the top of rail foot. Under the rail foot additionally the rail pad is placed, while the rail foot is isolated from the spring clip and anchors with electro-insulation hold-down part.
Characteristics and advantages of SB type rail fastening system to the tram lines:
- reducing the transmission of vibrations from the rail to the sleepers and ballast
- electrical insulation reducing to minimum traction stray currents
- high durability in service
- reducing the level of noise
- a small number of the components; rapid and easy installation
- the possibility of using the mechanical mounting devices
