Standard_Parts_Catalogue

Page 1850 | 3.8 Adjusting, Moving with Guides, Spindles and Ball Rollers Telescopic Slides General Notes Structure Telescopic slides consist of an outer and inner slide as well as additionally of one or two middle slides depending on de- sign and/or required extension lengths. The slides are interconnected through appropriately shaped geometry and move by means of ball bearings. A ball cage keeps the bearings spaced and in position. The slides are usually mounted through countersunk holes or through-holes. Other options, such as threaded bolts or support brackets, are available as an alternative. In regard to the length of the extension, telescopic slides can be divided into three categories: partial extension, full extension, and over extension. The categories are defined by the achievable stroke l 2 , which is listed in relation to the nominal length l 1 . General information Telescopic slides offer smooth running, wear-free, and quiet linear motion. They are used in a very wide range of ap- plications. The spectrum ranges from the most simple extensions and drawers to high-quality variants that are used in the industrial environment on machines, production systems, and equipment. The telescopic slides have a multitude of positive features and are still very interesting from an economic standpoint. Here are a few examples of use: sliding doors, protective hoods, keyboards and PC pullouts, vehicle equipment, storage shelves, battery boxes etc. Telescopic slides can come with a number of component options. Some are available for one of the two stop positions and in combination, and they are defined by the type in the article number. Type of extension Extension diagram Partial extension: l 1 = 100 % → l 2 = min. 75 % Full extension: l 1 = 100 % → l 2 = min. 100 % Over extension: l 1 = 100 % → l 2 = min. 150 % All slides have internally constructed stops in the front and back end position. The stops prevent the slides from extending unintentionally. Depending on the available installation space and required stability, the stops are designed accordingly in a metallic form or with additional plastic or elastomer parts as a rubber stop to prevent the slides from hitting the end positions with too much force. Also the telescopic slides can come with a variety of accessory functions. Examples include locking devices, latches, detach functions, and self-retracting mechanisms, some of which are dampened. Some additional functions are availa- ble, depending on slide variant, for the back or front stop position and in combination. Furthermore, customer-specific modifications regarding the mounting of the slides can be made.