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Design of a testing device for a new invented D...
37,00 € *
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This thesis project is about designing and developing an already existing testing device for a new invented Doctor Blade. A doctor blade is a blade used for creping tissue paper of a rotating cylinder, Yankee Cylinder. The old testing device was incomplete in a way that a rotating cylinder was missing, hence the tested blade is not loaded properly. The old testing device already contained the doctor blade holding device and the pulling device (pulling the creping blade). These two devices are transferred to the new testing device without any redesign within them. The adding of a rotating cylinder/roller required some new redesign regarding the testing device.

Anbieter: Dodax AT
Stand: 18.01.2020
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Satin Island
12,50 € *
ggf. zzgl. Versand

U. is a 'corporate anthropologist' who, while working on a giant, epoch-defining project no one really understands, is also tasked with writing the Great Report on our society. But instead, U. spends his days procrastinating, meandering through endless buffer-zones of information and becoming obsessed by the images with which the world bombards him on a daily basis: oil spills, African traffic jams, roller-blade processions.Is there a secret logic holding all these images together? Once cracked, will it unlock the master-meaning of our era? Might it have something to do with the dead parachutists in the news? Perhaps, perhaps not.

Anbieter: Dodax
Stand: 18.01.2020
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Hoch belastete Großwälzlagerungen in Windenergi...
48,80 € *
ggf. zzgl. Versand

The industrial application of wind power plants is gaining importance in face of strongly growing energy demands and limited capacities of fossil fuels. Increasing contact loads and corrosive wear processes -especially in case of offshore use- are setting highest requirements regarding lubricant performance as well as bearing layout and manufacturing to ensure operational capability. The investigations carried out are focussing on slewing blade and main rotor bearings of large diameter for wind turbines. With special regard to blade bearings a testrig is designed allowing grease lubricant testing under permanent-pitch operating conditions for on- and offshore use. The influence of lubricant on tribocorrosive wear, frictional torque and raceway damage is experimentally investigated by use of optical interferometric and metallographical analysis of contact area. The experimental results highlight significant differences in lubricant performance preventing fretting wear under on- and offshore operating conditions. To investigate tribocorrosive wear process in grease lubricated bearings in detail, an electrochemical measurement device is applied to a test rig for annular roller bearings. Results based on simultaneous recording of corrosion potential-time curves may form a base for further research activities on tribocorrosive wear in heavily loaded slewing bearing applications. In order to study the influence of geometry, frictional shear and mechanical loading for ball as well as roller bearings, a numerical algorithm for solid body contact based on half space theory is applied. Contact stress fields at and beneath the surface are evaluated using a 3d semianalytical model. Additionally a deterministic fatigue model, which is based on critical plane approach, is linked regarding fatigue process due to cyclic loading of raceway in detail. The calculations carried out on large simulation grids show exemplarily in how far tribological stress and fatigue damage at contact surface of blade bearings are affected by shear loading due to pitching. Finally theoretical investigations are extended to tapered main bearing under slowly turning as well as nominal EHL operating conditions taking roller profiling and misalignment into account. A numerical model linking Reynolds-PDE and contact elasticity is developed in order to optimize EHL solution procedure for heavily loaded bearings. Results comparing numerical and analytical solutions are shown and reveal the necessity of detailed investigations and advanced triboengineering in order to simulate contact conditions and to assess performance and finally lifetime of tribosystem under various influences.

Anbieter: Dodax
Stand: 18.01.2020
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Satin Island
12,90 € *
ggf. zzgl. Versand

U. is a 'corporate anthropologist' who, while working on a giant, epoch-defining project no one really understands, is also tasked with writing the Great Report on our society. But instead, U. spends his days procrastinating, meandering through endless buffer-zones of information and becoming obsessed by the images with which the world bombards him on a daily basis: oil spills, African traffic jams, roller-blade processions.Is there a secret logic holding all these images together? Once cracked, will it unlock the master-meaning of our era? Might it have something to do with the dead parachutists in the news? Perhaps, perhaps not.

Anbieter: Dodax AT
Stand: 18.01.2020
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Hoch belastete Großwälzlagerungen in Windenergi...
48,80 € *
ggf. zzgl. Versand

The industrial application of wind power plants is gaining importance in face of strongly growing energy demands and limited capacities of fossil fuels. Increasing contact loads and corrosive wear processes -especially in case of offshore use- are setting highest requirements regarding lubricant performance as well as bearing layout and manufacturing to ensure operational capability. The investigations carried out are focussing on slewing blade and main rotor bearings of large diameter for wind turbines. With special regard to blade bearings a testrig is designed allowing grease lubricant testing under permanent-pitch operating conditions for on- and offshore use. The influence of lubricant on tribocorrosive wear, frictional torque and raceway damage is experimentally investigated by use of optical interferometric and metallographical analysis of contact area. The experimental results highlight significant differences in lubricant performance preventing fretting wear under on- and offshore operating conditions. To investigate tribocorrosive wear process in grease lubricated bearings in detail, an electrochemical measurement device is applied to a test rig for annular roller bearings. Results based on simultaneous recording of corrosion potential-time curves may form a base for further research activities on tribocorrosive wear in heavily loaded slewing bearing applications. In order to study the influence of geometry, frictional shear and mechanical loading for ball as well as roller bearings, a numerical algorithm for solid body contact based on half space theory is applied. Contact stress fields at and beneath the surface are evaluated using a 3d semianalytical model. Additionally a deterministic fatigue model, which is based on critical plane approach, is linked regarding fatigue process due to cyclic loading of raceway in detail. The calculations carried out on large simulation grids show exemplarily in how far tribological stress and fatigue damage at contact surface of blade bearings are affected by shear loading due to pitching. Finally theoretical investigations are extended to tapered main bearing under slowly turning as well as nominal EHL operating conditions taking roller profiling and misalignment into account. A numerical model linking Reynolds-PDE and contact elasticity is developed in order to optimize EHL solution procedure for heavily loaded bearings. Results comparing numerical and analytical solutions are shown and reveal the necessity of detailed investigations and advanced triboengineering in order to simulate contact conditions and to assess performance and finally lifetime of tribosystem under various influences.

Anbieter: Dodax AT
Stand: 18.01.2020
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Boogies für Jung und Alt 3 | 12 mittelschwere B...
12,80 € *
ggf. zzgl. Versand

BREZN'S MOUNTAIN BIKER BOOGIE|STREET BALL FIGHTER BOOGIE|HOT DRAGSTER STUMPER|BUNGEE JUMPER BLUES|TOM'S AEROBIC DANCER|HAPPY HIPPIE HOPSER|SKATEBOARD SKIFFLE|W A M 'S BOOGIE JOKE|EPI'S DOWN HILL BOOGIE|CHINA JOE'S CROSS CAR CRUSHER BOOGIE|ALI'S RACE CAR BOOGIE|BLUE ROLLER BLADE BLUES

Anbieter: Notenbuch
Stand: 18.01.2020
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Look Keo Blade Carbon TDF Pedale (grün) 2018 - ...
135,99 € *
ggf. zzgl. Versand

Look Keo Blade Carbon TDF Pedals - GreenThe Look Keo Blade Carbon TDF (Tour de France) Pedals have been designed and developed  with input from some of the World's greatest cycling champions for optimal  efficiency and performance; the Keo Blade Carbon Pedals are built to get you on  top of the podium. This TDF special edition model celebrates green colour of the sprinter's jersey.Features:  Material: Body: Carbon; Spindle: CrMo  Bearings: 1 roller bearing, 1 needle bearing  Pedal Stack Height: 14.8mm  Platform Width: 67mm  Contact Surface Area: 700 square millimetres  Tension: Supplied with 12Nm carbon blades installed and additional 16Nm carbon blades (20Nm carbon blades sold separately)Technologies:  Carbon Body and Blade Technology: Carbon lightens the weight of the pedal and provides an additional gain in stiffness for improved power transfer. Using a blade instead of a conventional metal spring has many advantages such as safer cleat entry & release, a more aerodynamic shape and a lighter weight.  Optimised Spindle Profile: The Keo Blade pedal spindle was designed to obtain a very low stack height. It uses a needle bearing cartridge installed in a central position for better stress resistance while pedalling and two spaced out ball bearings, which distribute the load, providing increased rigidity between the body and the length of the spindle guaranteeing excellent rotational speed. Spindle play (related to internal bearing movement and part wear) is eliminated by a wave spring that constantly applies a pre-load that does not deteriorate over time. When pushing hard on the pedals, this system can completely eliminate the annoyances caused by any play (noise and sensation of friction). Look spindles are only approved after a rotational test of 2 million cycles at 100rpm with a load of 90kg on the centre of the pedal and an eccentric rotation, which creates stress on each revolution. This is equivalent to a sprint by André Greipel of 1700 watts at 100rpm for 333 hours! This test is much more demanding than the current standard, the ISO 4210.  Ultra-Powerful Platform: To meet the demands of the most demanding cyclists, especially competitors, the pedal/cleat system must allow efficient power transfer thanks to a broad and rigid platform. Because of this, the Keo Blade Carbon platform is fitted with a 67mm wide, stainless steel plate that optimises the cleat/pedal contact area regardless of pedalling angle. With 700 mm² of surface area, the Keo Blade Carbon offers an optimised contact platform for an efficiency and power transfer that is unmatched on today's market.Buy Look Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

Anbieter: Chain Reaction Cy...
Stand: 18.01.2020
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Look Keo Blade Carbon Rennrad Pedale (Titanachs...
209,99 € *
ggf. zzgl. Versand

Look Keo Blade Carbon TI Axle Road PedalsDrawing upon years of experience and with input from some of the most highly regarded champions of the sport, the revised Look Keo Blade Carbon pedals with titanium axles are super lightweight and designed to perform at the highest level to help you win.Featuring all the benefits of a blade pedal, the Keo Blade Carbon TI pedals have an aerodynamically optimised shape with an increased platform size for superior performance and optimal efficiency. Supplied with 12Nm and 16Nm blades, they can be customised to suit your preferred feel.Features: Body Material: Carbon Spindle Material: Titanium Intended Use: Race Bearings: 1 roller bearing, 1 needle bearing Pedal Stack Height: 14.8mm Platform Width: 67mm Contact Surface Area: 700mm² Tension: Supplied with 16Nm carbon blades installed and additional 12Nm carbon blades (20Nm carbon blades sold separately) Cleats: Supplied with grey Look Keo Grip Cleats Float: Black Cleat: 0°; Grey Cleat: 4.5°; Red Cleat: 9° (grey 4.5° cleats supplied) Weight: Pedal: 95g; Pair with Cleats: 248gTechnologies:Carbon Body and Blade Technology: Carbon lightens the weight of the pedal and provides an additional gain in stiffness for improved power transfer. Using a blade instead of a conventional metal spring has many advantages such as safer cleat entry & release, a more aerodynamic shape and a lighter weight.Optimised Spindle Profile: The Keo Blade pedal spindle was designed to obtain a very low stack height. It uses a needle bearing cartridge installed in a central position for better stress resistance while pedalling and two spaced out ball bearings, which distribute the load, providing increased rigidity between the body and the length of the spindle guaranteeing excellent rotational speed. Spindle play (related to internal bearing movement and part wear) is eliminated by a wave spring that constantly applies a pre-load that does not deteriorate over time. When pushing hard on the pedals, this system can completely eliminate the annoyances caused by any play (noise and sensation of friction). Look spindles are only approved after a rotational test of 2 million cycles at 100rpm with a load of 90kg on the centre of the pedal and an eccentric rotation, which creates stress on each revolution. This is equivalent to a sprint by André Greipel of 1700 watts at 100rpm for 333 hours! This test is much more demanding than the current standard, the ISO 4210.Ultra-Powerful Platform: To meet the demands of the most demanding cyclists, especially competitors, the pedal/cleat system must allow efficient power transfer thanks to a broad and rigid platform. Because of this, the Keo Blade Carbon platform is fitted with a 67mm wide, stainless steel plate that optimises the cleat/pedal contact area regardless of pedalling angle. With 700 mm² of surface area, the Keo Blade Carbon offers an optimised contact platform for an efficiency and power transfer that is unmatched on today’s market.Buy Look Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

Anbieter: Chain Reaction Cy...
Stand: 18.01.2020
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Givi Monolock® Topcase B360N matt schwarz unlac...
132,99 € *
zzgl. 3,49 € Versand

Givi Monolock® Topcase B360 Blade Dank der Universaladapterplatte ist das Topcase auf nahezu jedem Gepäckträger verwendbar, egal ob Motorrad, Roller, Quad oder Trike. Details: kompaktes Topcase mit genügend Stauraum für Einkäufe oder den Helm und mehr ohne zu sehr in die Breite zu bauen B360N mit roten, B360NT (Tech) mit getönten Reflektoren inklusive Universaladapterplatte = nur diese Adapterplatte wird fest verschraubt, das Topcase ist immer einfach abnehmbar auch ohne diese Universaladapterplatte auf die dafür vorgesehenen Gepäckträger (Givi, Quick Lock) passend bewährtes Schließsystem mit einem gemeinsamen Schloss zum Öffnen und zur Abnahme von der Platte sehr haltbares Material Ersatzteile auf Anfrage auch einzeln zu bekommen Maße (ca.):36 Liter Stauraum - für einen Helm und mehr Länge x Breite x Höhe 495 x 440 x 340 mm Optionen:Fast alle Einzelteile sind auch langfristig als Ersatzteile erhältlich. Die Universaladapterplatte ist unter der Bestellnummer 70150000070, z.B. zur Verwendung auf mehreren Fahrzeugen, auch einzeln zu bekommen. Eine passende Rückenlehne ist unter der Bestelln-Nr. 70150001153 erhältlich). Zulassung:Topcase, Koffer und deren Träger müssen nicht zugelassen werden, benötigen deshalb auch keine Prüfzeichen, Gutachten oder ABE´s. Preis pro Stück inklusive einer Universaladapterplatte

Anbieter: Polo-motorrad
Stand: 18.01.2020
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