1. What do you do if the drawer is difficult to open ?
This can be caused by a mounting problem.
This can be caused by a mounting problem.
CHAMBRELAN bearing slides have been designed to operate with minimum maintenance. They are lubricated in house with a high pressure bearing grease, which guarantees them an optimum life span. However, in the event of severe operating conditions (environment, high operating rates, etc.), the slides should be regularly and systematically maintained.
They are delivered pre-greased from the factory:
When in use, the important thing is to have clean and greased ball bearings and ball tracks. As far as possible, they must be free of impurities that could damage the raceways or block the movement.
The maintenance intervals depend on the use and the environment;
During our qualification tests at 15000 cycles, we lubricate the slides every 5000 cycles.
However, an abrasive environment or high rates will require more regular maintenance.
In the case of particular use at temperatures below -20°C or above 140°C, we can adapt the choice of grease to suit these conditions. The same applies to food environments or clean rooms.
Without disassembling the slide, clean the raceways with a cloth; it is possible to use a degreasing solvent.
Then abundantly regrease the raceways with a brush or grease spray. Finally, carry out a few opening and closing cycles so that the ball bearings are greased.
We can eventually supply the grease we use.
|Low temperature||Standard||High temperature|
|Steel slides||MALUB GV2 (-50°C à +130°C)||MALUB (-20°C à +140°C)||JELT high temp (-20°C à +1200°C)|
|Aluminium slides||JELT food & clean room compatible (-20°C à +140°C)||N/A|
|Stainless steel slides||JELT high temp (-20°C à +1200°C)|
The maximum speed is 0.25m per second.
Standard load capacities are given for a pair of slides, in the opened position, mounted on the major axis, with a uniformly distributed load. Be careful: with a mounting on the minor axis, load capacity is reduced by 40%.
For extreme conditions of use, or heavy loads, we offer you a range of reinforced slides. They can absorb twisting effects. Reinforced slides are specially recommended when there is a torque load or when there is a need for mounting on a minor axis.
Our standard stock slides can withstand temperatures up to 80°C. Beyond these temperatures, adaptations can be made. Contact us.
Anti-corrosion treatment highly contributes to the quality and service life of linear guides. Industrial applications where humidity, dust and corrosive agents may be present, create difficult conditions for the telescopic slides.
It is therefore important to choose the right surface treatment according to the end application in order to guarantee the reliability of the linear guidance systems.
All our surface treatments are selected to comply with environmental regulations: for example, the zinc plating used is in compliance with RoHS and REACH directives.
To guarantee the reliability and functionality of the steel telescopic slides, the elements are tested with “Salt Spray” (S.S.). Their resistance is expressed in hours before red rust on less than 5% of the surface. A standard defines the resistance and serves as a reference for comparative evaluation between different types of anti-corrosion treatments.
Samples of slides are therefore placed in a test chamber and sprayed throughout the test with a sodium chloride solution (5%) at PH 6.5 and a temperature of 35°C. An evaluation of the surface condition is carried out at regular intervals to measure the quality of the protection.
CHAMBRELAN telescopic slides, whether partial extension, full extension or super-extension, are used in a wide range of applications, such as access doors, pull-out drawers, gap fillers, etc. All standard CHAMBRELAN slides are supplied with an anti-corrosion treatment suitable for the majority of applications:
In some applications, the corrosion protection treatment requires special attention as the telescopic slides remain closed most of the time. Dirt and moisture are therefore trapped inside, making it difficult to evacuate them. Maintenance intervals, which can be long or even irregular, must also be taken into account. For this reason, we offer suitable surface treatments as an option:
These different options can be combined with each other…
The pro’s advice:
Combining an improved surface treatment with stainless steel ball bearings mounting offers an economical alternative to all-stainless steel slides with optimised corrosion resistance at a fraction of the price of an all-stainless steel slide.
Lubrication is also a key element for the life of the slides.
Simplified synoptic table of surface treatments according to the materials or use:
Treatment \ Material
Stainless steel (304L or 316L)
|ZNJ : White Zinc
450 h S.S.
|OAI : Colourless Anodic Oxidation
250 h S.S.
|Scouring & passivation|
|ZNN : Black Zinc
250 h S.S.
|OAN : Black Anodic Oxidation||Electrolytic Polishing|
|ZNA : High strength zinc
600 h S.S.
|ZNK : Nickel Zinc
1000 h S.S.
|NIT : Carbo-Nitriding
hardness of 35 HRC
|OAD : Hard anodic oxidation
hardness of 48 HRC
The Chambrelan range is composed of 2, 3 and 4 beam slides with any extension up to 150% of the closed length. The extension can be increased or decreased by adapting the length of the ball Cages.
Rules for a good mounting are simple :
By following these mounting rules, you will get a smooth and even movement of the slides.
A resistance to opening or closing indicates an incorrect mounting .
If the slides are incorrectly mounted the life span of the slides will be reduced.
NB : over 150°C, zinc starts blistering and coming off. Other solutions must be considered. Please ask for advice.