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Feature Seals & bearings Slim bearings minimise telescope weight


Reali-Slim bearings from R.A. Rodriguez have been chosen to help minimise telescope size and weight at the Esrange Space Centre in Sweden where the polarised, gamma-ray observer (PoGOLite) will be relaunced later this year to study high energy light (x-rays) emitted by heavenly bodies such as neutron stars, pulsars and black hole systems


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he telescope will be lifted into space by a helium balloon so it can travel on stratospheric winds across Sweden, Norway, Iceland, Greenland, Canada and Russia, return- ing to Sweden 20 days later. Keeping the payload to a minimum without compromising performance has been a key issue in the design of the PoGOLite altitude control system (ACS). The Swedish company DST, responsible for this, sought compo- nents whose design would contribute to weight and space savings. These design criteria are key selling points for Kaydon thin section bear- ings, making them a standard choice in the aerospace sector. As well as supply- ing these products in the UK and


Ireland, the UK engineering component specialist R. A. Rodriguez is responsi- ble for the Scandinavian market. The weight of the overall payload is critical because PoGOLite needs to be able to reach the greatest possible alti- tude. This is because x-rays are absorbed by the Earth’s atmosphere so, by increasing the ascent potential of PoGOLite, more accurate findings can be assured. It is hoped the study will show a clear polarisation of x-rays, revealing a new observational window through which scientists can study the universe.


Although the altitude control system is just one part of the vessel payload it needed to be as compact and lightweight as possible. As a result


R.A. Rodriguez T: 01462 670044 rarodriguez.co.uk Enter 332


DST specified 50 and 70mm Kaydon angular contact bearings to allow for accurate control of the elevation angle of the telescope. The elevation bear- ings therefore carry the full mass (700kg) of the telescope and are able to survive the 10g shock resulting from the launch of the parachute during landing. Furthermore DST specified 90 and 180mm Kaydon angular con- tact bearings for the critical azimuthal motion of the gondola. Hence these bearings carry the entire mass of the gondola (2,000kg) and can survive the 10g shock during landing. The main reasons for choosing these bearings are the high requirements on small mass and size, low friction for accurate posi- tioning and high axial capacity. The benefits of the Kaydon angular contact bearing its ability to support radial and uni-directional thrust loads but there is a Kaydon bearing to suit every load requirement and for special applications too. There are bearings that are resistant to corrosion, high tem- peratures and chemicals and those for nuclear and clean room applications.


Key Industrial Website Addresses • Website Locator •


ACCESS PLATFORMS Easi-Dec - www.easi-dec.co.uk


ADVERTISING PROMOTIONAL GIFTS EMC advertising gifts - www.emcadgifts.co.uk


ANTI SLIP SAFETY PRODUCTS Fibre Grid - www.fibregrid.com


Sui Generis Internation Ltd - www.suigeneris.co.uk


BEARINGS igus UK- www.igus.co.uk Schaeffler UK Ltd - www.schaeffler.co.uk


CABLES igus UK - www.igus.co.uk


CABLE CHAINS igus UK - www.igus.co.uk


DATA ACQUISITION National Instruments - www.ni.com


DATA LOGIN Tempcon Instrumentation - www.tempcon.co.uk


DRUMS & IBC HEATING Holroyd Components Ltd - www.holroydcomponents.com


ELECTRIC ACTUATORS DRIVES INTERNATIONAL LTD - www.dil-actuators.co.uk


ENERGY LOGGING Tempcon Instrumentation - www.tempcon.co.uk


GEARS AND GEARBOXES


SPIROFLOW - info@spiroflow.com Stock Gears - www.davall.co.uk


HUMIDITY AND MOISTURE MEASUREMENT IMA Ltd - www.ima.co.uk


INDUSTRIAL CLEANING EQUIPMENT Crofton associates - www.croften-house.co.uk


MOISTURE MEASUREMENT NDC Infrared Engineering - www.ndcinfrared.com


NOISE AND VIBRATION Castle Group - www.castlegroup.co.uk


OVERHEAD CRANES AND HOISTS Abus Crane - www.abuscranes.co.uk


INDUSTRIAL FLOORING Fibre Glass Grating - www.fibreglassgrating.co.uk


Sui Generis - www.suigeneris.co.uk


INFRARED GAUGES NDC Infrared Engineering - www.ndcinfrared.com


INFRARED TEMPERATURE MEASUREMENT Raytek - www.raytek.com Thermoteknix - www.thermoteknix.com KIOSK PRINTERS & PRINT MECHANISMS DED Ltd - www.ded.co.uk / www.kiosk-printers.com LINEAR MOTION igus UK - www.drylin-w.com


LOADING BAY EQUIPMENT Thorworld Industries Ltd - www.thorworld.co.uk


LUBRICATION SYSTEMS Interlube - www.interlubesystems.com


MEASUREMENT INFRARED/TEMPERATURE NDC Infrared Engineering - www.ndcinfrared.com


Tempcon Instrumentation - www.tempcon.co.uk


PACKAGING EQUIPMENT Automated Packaging Systems - www.autobag.co.uk


PALLET DISPENSERS Premier Pallet Systems Ltd - www.premierpalletinverter.co.uk


PALLET & EQUIPMENT MANAGEMENT B&M Associates Ltd - www.bmpallets.com


PERSONAL PROTECTIVE EQUIPMENT Allibert Buckhorn UK Ltd - www.allibert-equipment.com Ansell - www.ansell.com


PROCESS MEASUREMENT NDC Infrared Engineering - www.ndcinfrared.com


RUGGED HANDHELD DEVICES Renovotec UK LLP - www.onlyrugged.com


SAWING MACHINES Kasto - www.kasto.uk.com


SENSORS Sensor Technology - www.sensors.co.uk


SPILL CONTAINMENT Sui Generis - www.suigeneris.co.uk


STORAGE


Couzens Storage Solutions Ltd - www.verticalcarousel.co.uk Safety Unlimited - www.safetyunlimited.co.uk


TEMPERATURE MEASUREMENT Norbar Torque Tools Ltd - www.norbar.com


Tempcon Instrumentation - www.tempcon.co.uk


TORQUE MEASUREMENT Sensor Technology - www.sensors.co.uk


TORQUE TOOLS MHH - www.torqueleader.com Norbar Torque Tools Ltd - www.norbar.com


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