RA7DD

This Reinforced 3 beam zinc plated steel telescopic slide, offers a full extension. It extend both sides of the fixed beam Strong, it encloses reinforced ball bearings that restricts twisting of the beams. It is intended for heavy loads in applications requiring high strength slides.

  • Extension : 315 mm
  • Load on minor axis : 180 kg
  • Load on major axis : 197 kg

Option

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Description

This Reinforced 3 beam zinc plated steel telescopic slide, offers a full extension.

It extend both sides of the fixed beam

Strong, it encloses reinforced ball bearings that restricts twisting of the beams.

It is intended for heavy loads in applications requiring high strength slides.

Applications

The guide rail is very strong, both in terms of its cold drawn hardened profiles and its end stops. It is intended for applications of heavy loads drawers or to withstand hard use. Being equipped with reinforcing ball bearings, it may also be flat mounted. Remember that a flat mounting induce significant deflection.

we do not recommend vertical mounting (guillotine) for this model.

Recommended operating temperatures from -20 to 80°C. After modifications during manufacturing, we can go from -50 to 250°C.

This product can be used as average load drawer slides, machine guard guides, telescopic rod, bar or arm, generator slide, furniture slide, extendable table slide rail, horizontal suspended guidance or in some cases as in vertical guides.

Manufacture

Chambrelan produces this telescopic slide using cold drawn profiles.

Anti-corrosion standard coating is a silver zinc, of a 12 microns average thickness, which offers excellent resistance to the salt spray test.

It has straight stops when opening and closing.

It has ball cages made of galvanized steel.

Its ball bearings are made of 100C6 chrome steel. It is greased with a high pressure grease.

Chambrelan is specialized in the design and manufacturing of telescopic slides and rails for industrial applications: reinforced slides, linear slide bearings rail, bearings guide, steel, aluminum or stainless steel sliders, partial, full or over extension, heavy duty industrial drawers...

Greasings

  • Standard slides are delivered slightly greased. We use a high pressure bearing grease for steel slides and a white grease for aluminum and stainless slides. Upon request, we can use food grease (compatible clean room) a high temperature grease a teflon free grease (for spray booths...) grease free mounting (although we do not advise this option)

A food safe grease, combined with stainless steel ball bearings, offers a cheap alternative to stainless steel slides.

Options

Manual lock

It has no lock option so far.

To lock the drawer in the center position, we have developed a slam lock. Each face of the drawer receives a handle that controls a central lockout feature. For more details: DHFDD DHFDD

Surface treatment

Other treatments ensuring better corrosion resistance are also available. Do not hesitate to contact us.

A nitruration coating can be supplied, which offers, in addition to corrosion resistance, an increased resistance to hammering of ball bearings and a longer lifespan. This option can be usefull in the case of intensive use or applications subject to vibrations.

Stainless stell ball bearings mounting

It can be mounted with stainless steel balls to get a very good corrosion resistance, which in some cases can provide an economical alternative to stainless steel slides.

high temp use
  • Use in high temperature (furnace): This model can be used in high temperatures environments: up to 250°C. However, adjustments are necessary: - Additionnal play in the assembly to allow the expansion elements without blocking the slide - Use of high temperature grease - Removing of all plastic parts. These adjustments on the slides should be performed in the factory, it is important to warn us with price request or order and to allow a delay for manufacturig.

the zinc coating deteriorates above 120°C, we can offer other solutions.

Development changes

increased development reduces the maximum permissible load.

Vertical mounting

This slide can not be mounted vertically (guillotine).

Drilling scheme

Product drilling schem - RA7DD
Download

Standard closed lengths

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.

MeasuresLoadsClosed lengthExtensionLoad per pair
on major axis
Load on minor axisStockPlease select
Longueur replié
300
Extension
315
Load on minor axis
197
Load per pair on major axis
180
3003151801970
Longueur replié
350
Extension
375
Load on minor axis
182
Load per pair on major axis
228
3503752281820
Longueur replié
400
Extension
415
Load on minor axis
168
Load per pair on major axis
276
4004152761680
Longueur replié
450
Extension
475
Load on minor axis
156
Load per pair on major axis
320
4504753201560
Longueur replié
500
Extension
515
Load on minor axis
144
Load per pair on major axis
350
5005153501440
Longueur replié
550
Extension
575
Load on minor axis
132
Load per pair on major axis
355
5505753551320
Longueur replié
600
Extension
615
Load on minor axis
124
Load per pair on major axis
350
60061535012418
Longueur replié
650
Extension
675
Load on minor axis
115
Load per pair on major axis
340
65067534011510
Longueur replié
700
Extension
715
Load on minor axis
106
Load per pair on major axis
330
7007153301064
Longueur replié
750
Extension
775
Load on minor axis
98
Load per pair on major axis
319
7507753199810
Longueur replié
800
Extension
815
Load on minor axis
91
Load per pair on major axis
305
800815305910
Longueur replié
850
Extension
875
Load on minor axis
85
Load per pair on major axis
292
850875292856
Longueur replié
900
Extension
915
Load on minor axis
79
Load per pair on major axis
277
900915277798
Longueur replié
1000
Extension
1015
Load on minor axis
68
Load per pair on major axis
250
100010152506810
Longueur replié
1100
Extension
1115
Load on minor axis
60
Load per pair on major axis
225
11001115225608
Longueur replié
1200
Extension
1215
Load on minor axis
53
Load per pair on major axis
202
12001215202531

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