GN 1414 Telescopic Slides Steel, with Full Extension and Dampened Self-Retracting Mechanism, Load Capacity up to 80 lbf

For the listed loading forces F_S to be absorbed reliably in the surrounding structure, all available through holes of the outer and inner slide having a Ø of 4.5 mm must be used. Alternatively, the outer slide has holes with a Ø of 6.3 mm for metric screws. The slotted holes, Ø 4.5 x 4.8 mm, are also used for mounting and facilitate adjustment. Failure to use mounting screws reduces the specified load capacity accordingly. The following screws can be used for mounting:

Designation - Standard
Socket button head screw ISO 7380
Phillips pan head screw ISO 7045
Phillips pan head self-tapping screw ISO 7049

Outer Slide
M 4
M 4
ST 3.9 / 4.2

Inner Slide
M 4
M 4
ST 3.9 / 4.2

GN 1414 telescopic slides have a dampened self-retracting mechanism, which is also called “soft-close”. The dampened self-retracting mechanism is divided into two main functions and provides the best possible ease of use when closing an extension.

On the one hand, the self-retracting mechanism automatically retracts the slides on the last 47 mm of stroke to the retracted end position, where they are held in place accordingly. The retraction force is about 40 newtons per slide pair. On the other hand, the closing movement on the mentioned stroke is slowed down by the damping mechanism and thus reduces the speed considerably. An extremely smooth and gentle closing movement is achieved. This retraction force has to be overcome accordingly when opening the extension.

The dampened self-retracting mechanism is designed for load values up to 36 kg based on 60,000 cycles (LGA standard). Proper use, such as reducing the travel speed to max 0.15 m/s when the retraction mechanism is reached, as well as compliance with the load values are required.

With this slide version, the available retraction force can be regarded as a locking device, which is noticeable through a slight restriction on opening the extension.

The detach function allows the extension to be completely separated from one another in the area of the middle and inner slide. This feature not only facilitates mounting, it also allows the extension to be quickly removed, for example when frequent maintenance work is performed on the components located behind.

The telescopic slide can be quickly and easily detached in the extended position through activation of the release lever, allowing the inner slide to be removed from the front.

For re-attaching the slides, the ball cages need to be moved to the extended end position. Then the inner slide is inserted to the retracted end position where it locks into place automatically.

The protected arrangement of the release mechanism prevents accidental detachment of the slide.

The maximum load capacity of telescopic slides depends on the slide cross-section and the nominal length l₁ as well as the resulting stroke l₂. Furthermore, the extension width, the slide materials used and the components of the equipment options, such as the dampened self-retracting mechanism, have a corresponding influence.
The information on the maximum load capacity of the telescopic slides was determined in endurance tests under the following conditions:

• Slide arrangement in pairs, side mount
• Observance of all mounting information
• Warp-resistant test setup
• Equal distribution of the maximum load F_S over the entire extension area
• Standard slide spacing of 450 mm
• 10,000 or 100,000 test cycles (one extension and one retraction = one cycle)
• Gradual increase of the load

Wear, performance, and maximum bending were assessed after each test section.