Drawer runner

1. 1002- Large choice of extensions

The development of a slide (also called extension, displacement or translation) corresponds to the extension of the moving part in relation to the fixed part. It depends on the number of elements in the slide and is measured in relation to the folded length. As standard, the slides offer extensions from 100 mm to 3,000 mm. There are 3 categories of extension: Partial extension ~ 0.7 L Full extension ~ L Super extension ~ 1.5 L Partial extension: approximately 2/3 of the folded length, with part of the mobile element remaining inside the fixed element. Full extension: approximately the entire folded length, with the intermediate element providing the additional extension. Super extension: approximately 150% of the folded length, thanks to the product's two intermediate elements. The development can be adapted to suit the conditions of use. This adaptation is based on the length of the ball guide. The extension can be reduced or increased by up to 10% of the standard extension. The extension influences the load capacity of the slide as well as the deflection: the greater the extension, the lower the permissible load. Development is usually carried out on one side of the slide. However, in some applications, it may be necessary to access the drawer from either side of the fixed part. In this case, double extension slides are used. Some products have no development and provide load support and translational guidance, such as linear guide rails.

2. 1001- Folded lengths

This is the length of the longest part of the guide. For standard slides, stock lengths range from 150 mm to 2000 mm, depending on the part number. It is essential to specify the part number AND the folded length to identify a slide. The lengths held in stock correspond to current requests. For standard telescopic slides, stock lengths range from 150 mm to 2,000 mm in 50 mm increments up to 900 mm, then in 100 mm increments from 1,000 mm. Other lengths are available on request. Please do not hesitate to contact us.

3. 1003-Load capacity

The load is the maximum effort which an extended pair of slides, mounted on the major axis, can bear. Load capacity varies from a few kilos to more than 1500 kg. The maximum safe load is given:
  • per a pair of edge-mounted slides,
  • fully developed slides,
  • uniformly distributed load on the small moving part of the slide.
Loads were calculated according to a predetermined protocol to ensure comfortable use. The working loads given include a high safety margin, enabling the slides to operate in most applications. They can be increased to some extent, but performances will decrease, including the deflection, the moving forces and the lifespan. In contrast, lower loads will improve performances. The safe load depends on the extension, the type of mounting and the intensity of use. So an increased extension limits the safe load, whereas a reduced extension enables it to increase its performance. A mounting of the slides on the minor axis is not recommended. It induces a substantial decrease of the load, or even, on some models, a minimal one.

4. 1004-Deflection

Deflection is the non permanent deformation when a fully extended slide is loaded. This deflection is depending on to the extension, the load, the type of mounting (major or minor axis) and the mounting conditions. It is directly proportional to the load. The figures are given on the product pages and on the technical data sheets.

5. 1005-Material

3 Types of materials:
  • Steel,
  • Aluminium,
  • Stainless Steel.

STEEL

Chambrelan makes its slide profiles by cold drawing out or machining in long lengths, generally 6 meters. This manufacturing method improves the quality of the steel used due to work hardening. So, a cold drawn XC10 used in ranges like the RA5R offers the quality of semi hard steel on its ball tracks. On heavy-duty products, Chambrelan uses semi-hard type XC35 steels, also work hardened. The balls are made of chromium (100C6) steel.

ALUMINIUM

Our profiles are mainly extruded 6060T5. The balls are made of chromium (100C6) steel.

STAINLESS STEEL

Our stainless steel profiles are available in 304L or 316L, cold-drawn or rolled. The balls are made of stainless steel.

6. 1006-Surface treatment

All slides are treated against corrosion. Our standard treatment is zinc plating (RoHS compliant) for steel slides and colourless anodization for aluminium models suits most applications. All slides come with a treatment against corrosion. The standard treatment, RoHS compliant, suits most uses.

7. 1007-Reinforced slides

Consist of enclosing reinforced ball bearings within the body of the slides. This process restricts twisting of the beams under load and enables the load capacity to be greatly increased at the same time as it reduces the pull-out & push-in forces. We mainly focus on heavy-duty slides. Among our products, we have developed a range of slides called “reinforced”, which has now replaced the standard slides. This feature consists in the inclusion of additional reinforcing ball bearings within the body of the slides. This process reduces out the twisting of the beams when under load. This modification enables the load capacity to be greatly increased at the same time as it reduces the pull-out and push-in forces. The type of product is highly recommended for applications where the slide undergoes a torque or for mountings on the minor axis.

8. 1009-Locks

Optional locking devices enable the slide to be held in various positions: extended (V), closed (F) or both (VF). By manually activating the latch, the draw and slides are able to operate normally. If considering the use of locks for vehicle applications, please contact us for further advice. Three locking types are possible, i.e. :

Lock in the opened position

Lock in the closed position

Lock in the open and closed positions

The unlocking of the intermediate beam on 3 or beams slides is automatic. NB: In most uses, out of two slides, if only one is fitted with a lock, it is enough to block the drawer or the mobile part in the required position. The handle can be a useful device and provides easier access to lock systems.

9. 1010-Double extension

An extension towards the front or the back of the fixed parts can be adapted on some slide types. Though easy to set up on 2 beams slides, it needs a synchronising system on the 3 beams slides. Double extension is an extension towards the front or the back of the fixed part NB:
  • This makes the setting up of an internal locking system impossible.
  • Flat mounting may be impossible on some slides; please refer to the product page for more information.

10. 1011-Table Slides

The outer beam includes 2 devices that extend on each side. This is suitable for example for tables with central opening.

11. 1012-Disconnect Option

Disconnection is an option on some types which allows you to remove the mobile part from the slide and then to insert it again in the same slide. This option is necessary when installation is carried out in cramped premises where it would be hard to mount standard slides or for materials requiring maintenance. This system is very technical and, therefore, very sensitive to mishandling. That is why Chambrelan prefers that fast hitching systems, such as studs, are used as often as possible.

12. 1013-Temperature

Standard operating temperatures are between -20°C and +80°C. Some slides can be used within temperatures from - 50°C to +250°C. Specific greasing can be applied. Please warn us before production. Learn more...

13. 1014-Speed of use

Telescopic Slides

The maximum speed of use for telescopic slides is 0.3m/s.

Linear rails

The maximum speed of use for linear rails is 0,5m/s.

14. 1017-Mounting rules

Our slides are designed to be mounted on the major axis, per pair, with a uniformly distributed load on the smaller moving beam. Some rules on good mounting: Used by pair, Mounted on the major axis, Evenly distributed load, Mounting surfaces are flat and even, Use all fixings provided, Slides are parallel on every axis, Align slides fronts, Use complete travel, Distance between slides less than 2 metres, Room temperature, Fully extend slides before assembly.

15. 1018-Mounting on a minor axis / Mounting with torque

Only some slides can be used for these types of stress. A mounting on the minor axis reduces the load capacity of the slides. Moreover, deflection and moving forces will increase. Please refer to the product pages for more information. Some slides need an increased space between the beams (ref C ) through spacers not supplied, in order to avoid the scraping due to the deflection.

16. 1020-Intensive use

In more demanding applications where shock and vibrations and excessive dirt are expected, we suggest nitruration of the beams. Learn more...

17. 1021-Polluted environment

In harsher environments, where a build up of excessive dirt particles can lead to seizure, we recommend users regularly clean and maintain the slides. You might also have to consider additional means of protection at the design stage.

18. 1022-Maintenance

To maximize worklife duration, slides are lubricated with a high pressure grease, which reduces the need for maintenance. In more extreme working environments, slides need to be regularly and systematically cleaned. Rails have to be regularly lubricated. Learn more...

19. 1023-Options

The characteristics given on this website correspond to standard manufacture or usual requirements. Our position as a manufacturer enables us to offer great flexibility in order to meet the most specific requirements. So Chambrelan can easily adapt : ExtensionsPart lengthsDrillings, diameters and hole centresSurface treatmentsOptions and fittings for fixingLubrication Do not hesitate to contact us.

20. 1025-Fitting

The various parts of the slides have manufacturing tolerances. The tolerances are offset by fitting different ball bearing diameters to ensure an easier movement. The standard fitting is suitable for most applications. According to your needs, the slides can then be assembled very tightly, or, conversely, very loosely,if the application requires it, as is the case for mountings in hot enclosed spaces.

21. 1043-Synchronization of full extension or super extension slides

1- Purpose of this sequential device 2- Concept 3- Advantages of this mechanism 4- Limitations and contradictions 5- More information?

1- Purpose of this sequential device:

In a normal telescopic slide, the opening of the beams can be done in a nonsequential way. The moving beam extends first. The other elements of the slide are then subjected to a torque which increases the force required to move them out. Sans système de synchronisation sur glissières télescopiques à billes On some slide references, a sequential opening of the beams is possible.

2- Concept:

Synchronization (or sequential opening) solves this phenomenon: 1- the moving beam is kept closed until the intermediate is completely opened. It is therefore subjected to a reduced torque, whilst extended. système de synchronisation sur glissières télescopiques à billes étape 1 2- then the moving element can expand: système de synchronisation sur glissières télescopiques à billes - étape 2 This system, which is possible on some heavy duty 3 or 4 beams slides, considerably reduces the opening forces by controlling the opening order of the telescopic slide beams. It is achieved :
  • either by magnetic end stop,
  • or by mechanical levers.

3- Advantages of sequential opening:

  • The opening force is reduced;
  • The lifetime is increased;
  • Ball cages migration due to insufficient parallelism is reduced.

4- Limitations and contradictions:

This system is not recommended in case of vertical use (guillotine). It also does not work in the case of high temperature installation (in an furnace).

5- More information?

For additional information, do not hesitate to contact us... Few examples of sequential telescopic slides: RA7R E1020  

22. 1044-Lubricating

Standard slides are delivered lightly greased. We use a high pressure bearing grease for steel slides and a white grease for aluminum and stainless slides. Learn more Upon request, we can use: food grease (compatible clean room)a high temperature greasea teflon free grease (for spray booths...)grease free mounting (although we do not advise this option) The slides are delivered lightly greased. We recommend greasing abundantly raceways after installation, especially in case of intensive use. NB: Regular lubrication extends the life of slides.

23. 1045-Wiper

The slides do not have a device to protect against particles. As with any ball bearings devices, telescopic slides and linear guides are very sensitive to projections of particles in the raceways. The balls bearing will be stopped by the obstable and sliding will be stopped. We don't provide standard protection device against projections.Each case must be studied specifically. This should be considered at the design stage. On some rails, we can provide an optional wiper. E53 ST53 SNT
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A question ?

1.Technical specifications?

  • Assembly plan
  • Availability
  • Load capacity…

2.Application fields of our industrial products?

  • design of a custom-made telescopic slide
  • selection of a model according to its load capacity…

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