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 mounting 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.
Load capacity
When the slides are mounted on the minor axis, it is advisable
to reduce the safe load by 40% for steel slides.
The load is the maximum effort which an extended
pair of slides, mounted on the major axis can bear.
The working loads given in this website include a high safety
margin enabling the slides to operate in most applications.
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. When the slides are
mounted on the minor axis, it
is advisable to reduce the safe load by 40% for steel slides.
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.
Deflection
Deflection is the bend
measured at the end of a pair of slides in the open
position when the later are subjected to a load on the mobile
beams.
This deflection is about 1% of the closed length for a pair
of steel slides at their maximum extension, when they are subjected
to the basic load, mounted on the minor
axis, in standard conditions.
This deflection is directly in proportion to the load applied.
Nitruration
The
materials that we use to produce slides are carbon steels
from types XC10 to XC 38. They suit most industrial
applications.
However, in the case of high use such as on a car production
line, or, in case of fast movement (more than 0.3 meters per
second), we advise this surface treatment.
This treatment gives the material a surface hardness
of about 35 HRC, a hardness equivalent to that of the
ball bearings'. Resistance to wear is, thus, greatly improved.
Obtained under vacuum, it penetrates the material better than
salt bath treatments. In this way increased hardness is effective
to a depth of almost 3 tenths of a millimeter ..
Material
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 steels used through the strainhardening resulting from
it. 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
strainhardened. The balls are made of chromium (100C6) steel.
Reinforced slides
We
concentrate particulary on heavy duty slides.
Among our products, we have developed a range of slides called
"reinforced", which are progressively going
to replace the standard slides.
This characteristic consists in enclosing reinforced ball bearings
in the thickness of the slides.This process cancells out the
twisting of the beams undergoing the 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. This type
of product is highly recommended for mountings where the slide
undergoes a torque or for mountings on the
minor axis.
Lock
An
optional locking device enables the slidetobe held in the extreme position, either extended
and/or closed. Simply activate the mobile part of the pawl to
allow the drawer to fold back.
Three locking types are possible, i.e. :
1. lock in the open position
2. lock in the closed position
3. lock in the open and closed positions
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.
End stop
Chambrelan
slides are fitted with stops which limit the extension,
both for opening and closing and which prevent the disconnecting
of the drawer. There are metal stops or rubber stops.
On heavy load types (E1700 and over), Chambrelan uses shock
absorber spring end stops (see drawings).
The stop shock during opening and closing is then considerably
deadened.
Extension
The extension of
a slide corresponds to the extension of the mobile part
in comparison with the fixed part.
The extension depends on the number of slide parts. It is measured
in relation to the closed length. There are three categories
of extension :
1. Partial extension : 2/3 of the closed length
2. Total extension : totality of the closed length
3. Over extension : 150% of the closed length
The extension length can be adjusted to the conditions of use.
This adjustment is made in relation to the length of the ball
cage. The extension can thus be increased or reduced up to 10%
of the catalogue extension. The extension length influences
the carrying capacity. The
larger the extension is, the more reduced the safe load is.
The extension usually operates on one side of the slide. Nonetheless,
for some applications, it may be necessary to reach each side
of the box. In this case, you will use double
extension slides
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 part slides it needs a taking up apparatus on
the 3 part slides. This makes the setting up of an internal
locking system impossible.
Manufacturing
Manufacturing tolerances
/ Thickness tolerances :
The general manufacturing tolerances of slides and guidance
rails conform to the JS13 standard. The slide is an assembly
of profiles, each of them presenting tolerances of 1 mm per
metre in straightness and of 1° per metre in twisting.
We take up these tolerances by fitting different diameters
of ball bearings. This leads to a thickness tolerance of -
+ 0.3 mm.
Length
For standard slides, the lengths in stock range from 150
mm to 2000 mm per 50 mm thread, depending on the
references. The lengths kept in stock correspond to the most
frequent orders. Other lengths are possible on request.
Ask us for advice .
Modularity
Our
position as a manufacturer enables us to offer you
numerous adaptations of our products.
In addition, these products can also be mounted together to
obtain new functions or specific sizes. Slides
can thus be assembled with each other or with guidance rails,
or even sometimes with ball bearing runners in the slides.
All
Chambrelan slides come with a treatment against corrosion.
The standard treatment, i.e. bichromated yellow zinc plating
for steel slides and colourless anodisation for aluminium
versions, suits most uses. The average endurance of bichromated
zinc plating is 250 hours in salt spray.
Other or extra treatments can be carried out according to
the application or to the environmental requirements.
Steel
White, black or olive green zinc plating
Organo-mineral finish on zinc plating (withstands salt
spray for 500 hours)
Chambrelan SAS - BP 995, 76 061 Le Havre Cedex, France - Tel : +33 (0) 2 35 24 62 80 - Fax : +33 (0) 2 35 25 02 00
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Characteristics
The
materials that we use to produce slides are carbon steels
from types XC10 to XC 38. They suit most industrial
applications.
We
concentrate particulary on heavy duty slides.
Among our products, we have developed a range of slides called
"reinforced", which are progressively going
to replace the standard slides.
An
optional locking device enables the slide to
be held in the extreme position, either extended
and/or closed. Simply activate the mobile part of the pawl to
allow the drawer to fold back.
Chambrelan
slides are fitted with stops which limit the 
Our
position as a manufacturer enables us to offer you
numerous adaptations of our products.
The
characteristics given on this website correspond to standard
manufacture or usual requirements. 
All
Chambrelan slides come with a treatment against corrosion.
The standard treatment, i.e. bichromated yellow zinc plating
for steel slides and colourless anodisation for aluminium
versions, suits most uses. The average endurance of bichromated
zinc plating is 250 hours in salt spray.