• The Step Plate (Tread) is the surface area of the step people step on. The step plate is usually made of an aluminium plate with longitudinal cleats or grooves that run through the combs and provide secure footing.
• The Step Riser is the vertical cleat cast into the front of a step, designed to pass between the cleats of adjacent step, thus creating a combing action with minimum clearance for safety.
• The Demarcations are yellow strips or may be in bold colour around the step tread but mostly located at the front and at the rear ends of the tread. They are used to visually locate the step separation and visual contrast between the steps and the combs.
• Frame / Yoke – Main support for riser, step tread, and step wheels
• Trail Wheels are used to guide the step and support its load on the track and prevent it from being out of plane.
• Step Hook normally attached to the end of the yoke by the step wheel used to activate the step up thrust safety device when the steps are not on their plane of travel at the top and bottom inclines.

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