Transcription
PTFE Sliding BearingsProduct brochureThe Avenues - KuwaitTechnical solutions for the safe, reliable and durable transfer ofloads and displacements.BT Bautechnik GmbHLemsahler Weg 2322851 NorderstedtPhone: 49 40 – 52 98 33 90Fax: 49 40 – 52 98 33 94
Lemsahler Weg 2322851 NorderstedtPhone: 49 40 - 52 98 33 90Fax: 49 40 - 52 98 33 94Short introductionPTFE Sliding bearingsOur PTFE sliding bearings are available in a wide range of designs which provide optimal andreliable solutions depending on the area of application. In the following document we willdescribe these types of bearings and in addition we will present some standard designs forindividual bearing types.Does your load case deviate from the standard design? Please refer to the contact form on page24 or contact us directly. We will be pleased to advise you and to offer you the appropriatespecial technical design for your load case.The single-part production, the corrosion protection and the assembly are carried out in our ownproduction plant. BT Bautechnik GmbH as well as our production of load-carrying building partsand kits for steel structures up to EXC3 in accordance with EN 1090-2 are certified and we areregularly monitored by the independent institutes MPA Stuttgart and DVS ZERT. BT BautechnikGmbH is thus enabled to offer you services and PTFE sliding bearings with the followingproperties:Product properties High quality Durability Low friction coefficient Loads up to 30.000 kN Connection temperatures of -60 C to 550 C Maintenance free Ready for installation Corrosion resistantDiagram 1: Tribological bearing PTFE-TILLQ3071 with stainless steel sheet1.4301/1.4404 Low installation heightServices Advice Technical processing Production InstallationPage 2Diagram 2: Special construction of a multidirectionally movable flat sliding bearing withan anti-derail -gmbh.de
Lemsahler Weg 2322851 NorderstedtPhone: 49 40 - 52 98 33 90Fax: 49 40 - 52 98 33 94ContentsDefinitions . 4Construction advice . 5Flat sliding bearingWeldingBT100 Multi-directionally movable . 6BT110 Unilaterally guided . 6Screw fasteningBT120 Multi-directionally movable . 7BT130 Unilaterally guided . 7Support bearingsBT200 Welding. 8BT210 Screw fastening (longitudinally) . 9BT220 Screw fastening (frontal) . 10Round, welding and screw fasteningBT230 Multi-directionally movable . 11BT240 Unilaterally guided . 11BT300 Counter bearing. 12Spherical bearingWelding, one PTFE plateBT400 Multi-directionally movable . 13BT410 Unilaterally guided . 13Welding, two PTFE platesBT420 Multi-directionally movable . 14BT430 Unilaterally guided . 14Screw fasteningBT440 Multi-directionally movable . 15BT450 Unilaterally guided . 15Point rocker bearingWeldingBT500 Multi-directionally movable . 16BT510 Unilaterally guided . 16Screw fasteningBT520 Multi-directionally movable . 17BT530 Unilaterally guided . 17Pipe bearingBT600 Large diameters with anti-derail device . 18BT610Large nominal diameters . 19BT620U-shaped profile . 20BT630T-shaped profile / L-shaped profile . 21Special sliding bearings . 22Slide-friction coefficient . 23Check list . 24www. e 3
Lemsahler Weg 2322851 NorderstedtPhone: 49 40 - 52 98 33 90Fax: 49 40 - 52 98 33 94DefinitionsFlat sliding bearingsThey are used if no angular displacements are to be expected. Standard designs are bearingswhich are multi-directionally movable and bearings which are guided on one side. However, it isalso possible to design fixed bearings or as special versions for the absorption of tensile loads.Support bearingsThese consist of support plates with chambered PTFE plates. They have no counter bearing withsliding plate. In order to ensure a low friction coefficient of the material pairings our supportbearings with stainless steel plates (1.4301/1.4404) must be equipped with a surface quality inaccordance with DIN 17440, a thickness of at least 1.5mm and a surface roughness of Rz. max.1µm. We can provide such stainless-steel plates pre-cut to size or as complete counter bearings.When support bearings are equipped with stainless steel plates or with counter bearings, theybecome fully functional sliding bearings.Counter bearingsAny kind of steel profile equipped with a stainless-steel plate (with the qualities mentionedabove) or a pre-cut stainless-steel plate can be used as counter bearing. Together with supportbearings they form fully functional sliding bearings.Spherical bearingsSpherical bearings are able to absorb high angular distortions. In addition, spherical bearings arecharacterised by their low installation height. Standard designs are multi-directionally movableand unilaterally guided bearings. However, it is also possible to design fixed bearings or as specialversions for the absorption of tensile loadsPoint rocker bearingsPoint rocker bearings can absorb high angular distortions in the same way as spherical bearings.Standard designs are multi-directionally movable and unilaterally guided bearings. They can alsobe designed as fixed bearing or as special versions for the absorption of tensile loadsPipe bearingsOur pipe bearings belong to the group of counter bearings and can be developed into fullyfunctional sliding bearings if equipped with stainless steel plates and support bearings. They areavailable as multi-directionally movable bearings, guided bearings and equipped with an antiderail device.Special sliding bearingsThese are all sliding bearings which cannot all be depicted in our standard designs. We arespecialised in offering suitable technical solutions for nearly all requirements. In this brochureyou can find some possible special designs. Do our standard designs not meet yourrequirements? Please send us the completed checklist or send us your enquiry by e-mail; we willbe pleased to advise you on a suitable technical solution.Page de
Lemsahler Weg 2322851 NorderstedtPhone: 49 40 - 52 98 33 90Fax: 49 40 - 52 98 33 94Construction adviceSliding bearingsIn all our sliding bearings, PTFE plates are chambered in a carrier plate. To achieve the optimalfriction coefficient of PTFE, the PTFE plates are equipped with a high-gloss polished stainlesssteel plate (1.4301/1.4404) with a surface quality in accordance with DIN 17440, a thickness of atleast 1.5mm and a surface roughness of Rz. max. 1µm to serve as counter bearings.Corrosion protectionAs standard, we use a 1-component zinc phosphate coating. Other corrosion protection systemsare possible in accordance with customer specifications.Carrier plateAs standard, construction steel S355J2 N is used for the carrier plate and the other platematerials. If required they can also be made of stainless steel.DeflectionIn the connection area of the sliding bearing (bearing upper plate and lower plate) any deflectionof the on-site connecting plates cannot be tolerated. Should this be the case, then the steelplates on the upper and lower bearings must be executed in accordance with the structuralstatic.LoadsUpper and lower bearings must be installed plane-parallel in order to avoid edge pressure. Ifvertical angular distortions are to be expected due to the installation or due to the generalconstruction (steel construction tolerances), then spherical bearings or point rocker bearingsmust be installed.CoverageIn any position the PTFE plate must be completely covered by the stainless-steel plate.Operating temperature up to80 C sliding plate of PTFE-TLLQ 3071150 C sliding plate of PTFE-TLFG 3124180 C sliding plate of PTFE-TLFG 3124 (with a reduced surface pressure)550 C sliding plate of PTFE-TLFG 3124 (high-temperature bearing with integrated insulation)InstallationUpon request the installation is carried out by our installation team. Should you wish to carry outthe installation yourself we will be pleased to supply you with installation instructionsMaintenancePTFE sliding bearings are mainly maintenance free. Should you have any special requirements,e.g. high sliding velocity, high sliding displacements, we will be pleased to advise you accordingly.Standard bearingThe check list on page 24 will help you and us to choose the correct bearing.www. e 5
Lemsahler Weg 2322851 NorderstedtPhone: 49 40 - 52 98 33 90Fax: 49 40 - 52 98 33 94Flat sliding bearingWeldingBT100Multi-directionally movableBT110Unilaterally guided1 All around tightly welded stainless-steel plate2 Chambered PTFE sliding 0200200230250250555565656585859090 20mm120140190190240240270290290CLwith strokewith stroke 40mm160180230230280280310330330 80mm240260310310360360390410410 20mm140190190240240290290290340 40mm180230230280280330330330380 e pay attention to the construction adviceDeviating load conditions and constructive requirements upon requestPage de
Lemsahler Weg 2322851 NorderstedtPhone: 49 40 - 52 98 33 90Fax: 49 40 - 52 98 33 94Flat sliding bearingsScrew fasteningBT120Multi-directionally movableBT130Unilaterally guided1 All around tightly welded stainless-steel plate2 Chambered PTFE sliding plate1Load 2kN1100250 A500 u750 fl11000a1250g15001750 e2000 30306060657575858595952CLwith stroke 20mm 40mm 80mmwith stroke 20mm 40mm 4903075125200200300300400400Please pay attention to the construction adviceDeviating load conditions and constructive requirements (as shown in the drilling diagram) upon request2www. age 7
Lemsahler Weg 2322851 NorderstedtPhone: 49 40 - 52 98 33 90Fax: 49 40 - 52 98 33 94Support bearingsWeldingBT200B 400B 4001 Chambered PTFE sliding plateIn order to ensure the low friction coefficient of the PTFE, our support bearings must beequippedwith a stainless-steel plate (1.4301/1.4404) (see under Counter 121717Please pay attention to the construction adviceDeviating load conditions and constructive requirements upon requestPage de
Lemsahler Weg 2322851 NorderstedtPhone: 49 40 - 52 98 33 90Fax: 49 40 - 52 98 33 94Support bearingScrew fastening (longitudinally)BT210B 400B 4001 Chambered PTFE sliding plateIn order to ensure the low friction coefficient of the PTFE, our support bearings must beequipped with a stainless-steel plate (1.4301/1.4404) (see under Counter 1515202038384343Please pay attention to the construction adviceDeviating load conditions and constructive requirements upon requestwww. e 9
Lemsahler Weg 2322851 NorderstedtPhone: 49 40 - 52 98 33 90Fax: 49 40 - 52 98 33 94Support bearingScrew fastening (frontal)BT220In the case of B 400 installation of a two-piece PTFE plate.1 Chambered PTFE sliding plateIn order to ensure the low friction coefficient of the PTFE, our support bearings must beequipped with a stainless-steel plate (1.4301/1.4404) (see under Counter 1515202038384343Please pay attention to the construction adviceDeviating load conditions and constructive requirements upon requestPage .de
Lemsahler Weg 2322851 NorderstedtPhone: 49 40 - 52 98 33 90Fax: 49 40 - 52 98 33 94Support bearingRound, welding and screw 181810101010101515252525252535351 Chambered PTFE sliding plateIn order to ensure the low friction coefficient of the PTFE, our support bearings must beGequippedwith a stainless-steel plate (1.4301/1.4404) (see under Counter bearings).egenlagwww. lease pay attention to the construction adviceDeviating load conditions and constructive requirements upon requestPage 11
Lemsahler Weg 2322851 NorderstedtPhone: 49 40 - 52 98 33 90Fax: 49 40 - 52 98 33 94Counter bearingBT300Any kind of plates or profile material may be used as counter bearing to which a stainless-steelplate is then welded. We can provide you with complete counter bearings but also ready pre-cutstainless-steel plates for further processing.In order to ensure the low friction coefficient of the PTFE and thus to form a fully functionalsliding bearing, our support bearings must be combined with counter bearings and the stainlesssteel plate must meet the following characteristics: High-gloss polished stainless-steel plate 1.4401 2B1.4404 2B1.4301 Material thickness at least 1.5mm Surface quality in accordance with DIN 17440 Averaged roughness Rz. max. 1µm in accordance with EN ISO 4287Please pay attention to the construction adviceDeviating load conditions and constructive requirements upon requestPage .de
Lemsahler Weg 2322851 NorderstedtPhone: 49 40 - 52 98 33 90Fax: 49 40 - 52 98 33 94Spherical bearingWelding, one PTFE plateBT400Multi-directionally movableBT410Unilaterally guided1 All around tightly welded stainless-steel plate2 Chambered PTFE sliding plate12BT400LLoad AHkNmmmm 20mmbei Hub 70500520160200240270300350390430460490510540560B 1502003004005006007008009001000Please pay attention to the construction adviceDeviating load conditions and constructive requirements upon requestwww. e 13
Lemsahler Weg 2322851 NorderstedtPhone: 49 40 - 52 98 33 90Fax: 49 40 - 52 98 33 94Spherical bearingWelding, two PTFE platesBT420Multi-directionally movableBT430Unilaterally guided12All around tightly welded stainless-steel plateChambered PTFE sliding plate1BT420L2Load AHkNmmmm 20mmbei Hub 70500520160200240270300350390430460490510540560B 1502003004005006007008009001000Please pay attention to the construction adviceDeviating load conditions and constructive requirements upon requestPage .de
Lemsahler Weg 2322851 NorderstedtPhone: 49 40 - 52 98 33 90Fax: 49 40 - 52 98 33 94Spherical bearingScrew fasteningBT440Multi-directionally movableBT450Unilaterally guided1All around tightly welded stainless-steel plate2Chambered PTFE sliding 0e3000r35004000245005000BT440CLwith strokewith strokeABEØdNMHDVymmmmmmmmmmmmmm 20mm 40mm 80mm 20mm 40mm 0501001502003004005006007008009001000Please pay attention to the construction adviceDeviating load conditions and constructive requirements upon requestwww. e 15
Lemsahler Weg 2322851 NorderstedtPhone: 49 40 - 52 98 33 90Fax: 49 40 - 52 98 33 94Point rocker bearingWeldingBT500Multi-directionally movableBT510Unilaterally guided1All around tightly welded stainless-steel plate2Chambered PTFE sliding plate12Load 994108123136157169182190196202BT500Lwith sztroke 20mm 40mm 8009001000Please pay attention to the construction adviceDeviating load conditions and constructive requirements upon requestPage .de
Lemsahler Weg 2322851 NorderstedtPhone: 49 40 - 52 98 33 90Fax: 49 40 - 52 98 33 94Point rocker bearingScrew fasteningBT520Multi-directionally movableBT530Unilaterally guided1All around tightly welded stainless steel plate2Chambered PTFE sliding 0030003500Pi40004500p5000eBT520ACLwith strokewith strokeBEØdNMHmmmmmmmmmmmmmm 20mm 40mm 80mm 20mm 40mm 78020501001502003004005006007008009001000bearing2 eDVyPlease pay attention to the construction adviceDeviating load conditions and constructive requirements upon requestPage 17
Lemsahler Weg 2322851 NorderstedtPhone: 49 40 - 52 98 33 90Fax: 49 40 - 52 98 33 94Pipe bearingLarge diameters with anti-derail deviceBT600Our pipe bearings can be customised as fully functional sliding bearings by means of our supportbearings and stainless-steel plates, thereby enabling multi-directionally movable and guidedversions. Guided bearings are equipped with an additional anti-derail 139151016500550575600650700Lwith stroke 20mm 40mm 80mm200250300Please pay attention to the construction adviceDeviating load conditions and constructive requirements upon requestPage .de
Lemsahler Weg 2322851 NorderstedtPhone: 49 40 - 52 98 33 90Fax: 49 40 - 52 98 33 94Pipe bearingsLarge nominal diametersBT610Our pipe bearings can be customised as fully functional sliding bearings by means of our supportbearings and stainless-steel plates, thereby enabling multi-directionally movable and guidedversions. Guided bearings are equipped with an additional anti-derail 139151016500550575600650700Lwith stroke 20mm 40mm 80mm200250300Please pay attention to the construction adviceDeviating load conditions and constructive requirements upon requestwww. e 19
Lemsahler Weg 2322851 NorderstedtPhone: 49 40 - 52 98 33 90Fax: 49 40 - 52 98 33 94Pipe bearingsU-shaped profileBT620Our pipe bearings can be customised as fully functional sliding bearings by means of our supportbearings and stainless-steel plates, thereby enabling multi-directionally movable and guidedversions. Guided bearings are equipped with an additional anti-derail 5276322378Lwith stroke 70mm 150mm150230160240200280Please pay attention to the construction adviceDeviating load conditions and constructive requirements upon requestPage .de
Lemsahler Weg 2322851 NorderstedtPhone: 49 40 - 52 98 33 90Fax: 49 40 - 52 98 33 94Pipe bearingsT-shaped profile / L-shaped profileBT630DN80 - 150:DN200 - 500:Our pipe bearings can be customised as fully functional sliding bearings by means of our supportbearings and stainless-steel plates, thereby enabling multi-directionally movable and guidedversions. Guided bearings are equipped with an additional anti-derail 54284308324388440489Lwith stroke 70mm 150mm150230160240200280Please pay attention to the construction adviceDeviating load conditions and constructive requirements upon requestwww. e 21
Lemsahler Weg 2322851 NorderstedtPhone: 49 40 - 52 98 33 90Fax: 49 40 - 52 98 33 94Special sliding bearingsWe would like to briefly introduce you here to some possible special sliding bearings that deviatefrom the standard designs. Possible tensile loadsFor all our sliding bearings we can offer technical solutions for the absorption of tension loads. Absorption of larger loadsBy using several support bearings in one sliding bearing the acceptable loads can be increased.This is also possible with the other sliding bearings by enlarging the carrier plate and extending itwith a second PTFE plate. Protection of sliding surfacesWe have various options for protecting the sliding surface from external influences by means ofadditional components. High-temperature bearingsBy using heat-resistant steel and insulating material our sliding bearings are suitable forconnection temperatures of up to 550 C. Fixed pointOur sliding bearings can be implemented as fixed points by means of restraint devices. Equipment with bearing position indicatorsIf large displacements occur we can equip our sliding bearings with a bearing position indicator. Line rocker bearingWe can provide line rocker bearings as sliding bearings. Corrosion-resistant versionShould our sliding bearings be installed in aggressive environments, e.g. a marine environment,we can provide a stainless steel version of our sliding bearings. Compensation of heights or slanted positionsWe also provide chuck plates or wedge plates.We are specialised to offer suitable technical solutions for nearly all requirements.Do our standard designs not meet your requirements? Please send us the completed check list orsend us your enquiry by e-mail, we will be pleased to advise you on a suitable technical solutionPage .de
Lemsahler Weg 2322851 NorderstedtPhone: 49 40 - 52 98 33 90Fax: 49 40 - 52 98 33 94Slide-friction coefficientBelow are shown the tribological characteristics of our PTFE-TLLQ 3071, in a version withlubricant retention.Explanation:Sliding material: maximum values according to EN 1337 - part 2 static slide friction value (starting value) dynamic sliding-friction valuePTFE-TLLQ 3071 white free sintered (bridge bearing quality) with lubricantretention.Counter bearing:stainless steel plate (1.4301/1.4404), with a surface quality in accordancewith DIN 17440, a thickness of at least 1.5mm and a roughness of Rz. max.1µm.Lubricant:Silicon grease in bridge bearing qualityThe above values are exemplary and are based on a random delivery lotThe slide-friction values are regularly monitored by independent institutes.Upon request an appropriate certificate 3.2 according to EN 10204 can be provided.www. e 23
Lemsahler Weg 2322851 NorderstedtPhone: 49 40 - 52 98 33 90Fax: 49 40 - 52 98 33 94Check listYour address:CompanyContact personStreetPostal codePlaceTelephone numberTelefaxE-mailType of bearing:Description (e.g. BT220):Multi-directional bearing Guided bearing Fix point Technical data:Load [kN]Vz,max Vz,min Horizontal load [mm]Vx Vy Max. connection temperature [ C]Displacement [mm]T vx vy Quantityn Corrosion protection:StandardRust primer 1 component zinc phosphate Optional2-component zinc phosphate Other remarks / additional equipment:All bearings can be welded and/or screw fastened to their construction. Please state the insidemicro-meters. Not every case can be covered by standard bearings. We are specialised inproviding special constructions for nearly all requirements. Please submit the completed checklist and, if applicable, your documents for preparation.Page 24www.b
In all our sliding bearings, PTFE plates are chambered in a carrier plate. To achieve the optimal friction coefficient of PTFE, the PTFE plates are equipped with a high-gloss polished stainless-steel plate (1.4301/1.4404) with a surface quality in accordance with DIN 17440, a thickness of at
