GMT offer a range of components to be used in primary suspension systems, examples of which include rolling rubber springs, conical springs and chevron springs.
GMT offer a large range of rolling rubber mounts which are vibration dampening elements consisting of a rubber ring, a tapered insert and a metal housing. The metal parts and the rubber ring are not bonded together by vulcanisation.
Roller springs are used for dampening vibrations in rail vehicles. The characteristics of roller springs can be varied as required within their permissible capacity. Load capacities range from 20 to 80kN with suspension travel ranging from 60 to 120mm.
GMT offer a large range of conical primary suspension mounts which can be used in various applications including body manufacturing for the bedding and suspension of the engine in the chassis frame.
They allow for considerable spring excursion and have a progressive stiffness characteristic curve. Horizontal stiffness's can be altered through the inclusion of elements with slots and buffers can be incorporated into designs to absorb additional shock loads.
GMT offer a large range of chevron axle springs which are multi-purpose vibration reducing elements. Due to their simple installation and long life span, chevron springs are ideal for use in all types of rail vehicles.
By selecting the angles and the number of intermediate spring links in conjunction with the relative angles of the chevron springs to each other, three different spring stiffness's can be produced. Furthermore, the degree of stiffness can also be varied by altering geometric dimensions of the individual layers and the rubber hardness.