GN 1424 Telescopic slides with full extension and dampened self-retracting mechanism, load capacity up to 750 N

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Product description

Information

Telescopic slides with dampened self-retracting mechanism GN 1424 are installed vertically and in pairs. The stroke reaches ≈ 100 % of the nominal length l1 (full extension).

The telescopic slides are delivered in pairs. They can be installed on the extension on either the left or right side due to the mechanics. All mounting holes are easy to reach through auxiliary holes. Only the mounting holes are shown, but other production-related holes may be present.

Specification

Slide profile
Steel, zinc plated, blue passivatedZB

Bearings
Roller bearing steel, hardened

Ball cage
Steel, zinc plated

Rubber stop
Plastic / Elastomer

Self-retracting mechanism, dampened
Stainless Steel / Plastic

Operating temperature -20 °C to 100 °C




RoHS

On request

other lengths and hole spacing
other attachment options
with locking device (front)
other surfaces
variant with support bracket

Technical drawing

3D
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GN 1424 Telescopic slides with full extension and dampened self-retracting mechanism, load capacity up to 750 N sketch

Article options / Table

Type

Bwith rubber stop

Identification no.

2Fastening using countersunk holes
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l1l2 +4/-4
Stroke
l3Fs per pair in N
at 10,000 cycles

at 100,000 cycles
350335685650570
400400800750680
450451901750750
5005061006750750
5505551105750750
6006121212750750
7007001400750750

Build & Price

Length l1
Type

Identification no.

Finish

Mounting holes - outer slide

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l1a3a4
350192224
400224256
450288320
500320352
550352384
600416448
700448480

Mounting holes - inner slide

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l1i2i3i4
350173301-
400173333-
450205397-
500237461-
550269493-
600173301562
700173333653

Fastening screws

For the said loading forces FS to be absorbed reliably in the surrounding structure, all available countersunk holes of the outer and inner slide must be used. Failure to use fastening screws reduces the specified load capacity accordingly. The following screws can be used for mounting:

Designation - standard
Hexagon socket countersunk head screw DIN 7991
Countersunk screw, Phillips DIN 965
Countersunk screw, Phillips DIN 7997

Outer slide
M 5
M 5
Size 5

Inner slide
M 4
M 4
Size 4 / 4,5

Rubber stop

The rubber stops of type B dampen the impact of the slide in the respective end position. This feature minimizes noise development and increases the lifespan. Attached to the slides in a partially concealed, partially visible manner, the stops meet each of the requirements in regard to shape, material, and hardness.
If larger static or dynamic loads occur in the direction of extension, they should be absorbed by external stop elements.

Self-retracting mechanism, dampened

Telescopic slides GN 1424 have a dampened self-retracting mechanism, which is also called “soft-close”. The dampened self-retracting mechanism is divided into two main functions and offers the best possible ease of use on closing the extension.

The self-retracting mechanism takes over the automatic retraction of the slides on the last 40 mm of stroke in the back stop position, where the slides are held in place accordingly. The retraction force is about 35 newtons per slide pair. Also, the dampening mechanism slows down to a considerably reduced speed the closing movement on the said stroke. An extremely smooth and gentle closing movement is achieved. This retraction force has to be overcome accordingly on opening the extension.

The dampened self-retracting mechanism is designed for loads weighing up to 75 kg based on 60,000 cycles (LGA standard). Proper use, including the reduction of the stroke speed to no more than 0.15 m/s on reaching the retraction mechanism, as well as compliance with the load values are required.

Information on load capacity

The maximum load capacity of telescopic slides depends on the slide profile, the nominal length l1, and the resulting stroke l2. Furthermore, the extension width, the slide materials used, and the parts of the component options, such as the dampened self-retracting mechanism, have a considerable influence.
The information on the maximum load capacity of the telescopic slides was determined in fatigue tests under the following conditions:

- Slide arrangement vertical in pairs
- Observance of all mounting information
- Warp-resistant test set-up
- Equal distribution of the load FS throughout the extension finish
- Standard slide spacing of 450 mm
- 10,000 or 100,000 test cycles
(one extraction and retraction = one cycle)
- Gradual increasing of load

Wear, performance, and maximum bending were assessed after every test segment.

Selected Part (How to order)

Weight: 1,840 kg
If this article is new in our product range, it may happen that details concerning weight are as yet not listed.
If you do need weight details, please contact our Sales Department!
Phone+49 7723 6507 - 0
RoHS: Yes
This article is RoHS-compliant in application of Annex III., which means it complies with EU Directive 2011/65/EU, including extension (2015/863/EU), for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances)).
Please note our quantity discounts.
With a total value (net) per order:
from 175,00 Euro -> 10 % discount
from 275,00 Euro -> 20 % discount
from 375,00 Euro -> 30 % discount
With a total value (net) per order:
All prices in accordance with our price list No. 52, valid from 1 May 2019, plus VAT only valid for Germany.

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