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BRUSH DC motoRS Brush DC 8mm Motor Coil Cross Section Brush DC 16mm Brush DC 35mm Your miniature motion challenges are unique and your ideas for meeting those challenges are equally unique. From medical to aerospace or security and access, Portescap’s brush DC motion solutions are moving life forward worldwide in critical applications. The following Brush DC section features our high efficiency and high power density with low inertia coreless brush DC motor technology. Why a Brush DC motor
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  BRUSH DC motoRS Why a Brush DC motor 50Brush DC Spotlight on Innovation 51Brush DC Motor Basics 52Brush DC Working Principles 55How to select yourBrush DC motor 57 Brush DC Specifcations 58 Where to apply Brush DC motors 59Brush DC motors at Work 60 Your miniature motion challenges are unique and yourideas or meeting those challenges are equally unique.From medical to aerospace or security and access,Portescap’s brush DC motion solutions are movinglie orward worldwide in critical applications. Theollowing Brush DC section eatures our high efciencyand high power density with low inertia coreless brushDC motor technology. Brush DC 8mmBrush DC 16mmBrush DC 35mmMotor Coil Cross Section  Why a Brush DC r ã   Brush DC commutation design  Longer commutator lie because o the design. ã   REE system  Stands or Reduction o Electro Erosion. The electro erosion,caused by arcing during commutation, is greatly reduced in lowinertia coreless DC motors because o the low inductivity o theirrotors. ã   NEO magnet  The powerul Neodymium magnets along with enhanced air gapdesign thus giving higher electro-magnetic fux and a lower motorregulation actor. ã   Coreless rotor design  Optimized coil and rotor reduces the weight and makes it compact. Portescap’s brush DC coreless motors incorporate salient eatureslike low moment o inertia, no cogging, low riction, very compactcommutation which in turn results in high acceleration, highefciency, very low joule losses and higher continuous torque.Ideal or portable and small devices, Portescap’s coreless motortechnologies reduce size, weight, and heat in such applications.This results in improved motor perormance in smaller physicalenvelopes thus oering greater comort and convenience or end-users. In addition, the coreless design enables long-lie and higherenergy efciency in battery-powered applications.Portescap continues innovating coreless technology by seekingdesign optimizations in magnetic circuit, sel supporting corelesscoil along with commutator and collector confgurations.Get your products to market aster through Portescap’s rapidprototyping and collaborative engineering. Our R&D andapplication engineering teams can adapt brush DC coreless motorswith encoders and gearboxes to perorm in dierent confguration,environment, or envelope. Innovation & Performance Yur Cus mr ã   Shat extension and double shat options ã   Custom coil design (dierent voltages) ã   Mounting plates ã   Gear pulleys and pinion ã   Shock absorbing damper and laser welding ã   Special lubrication or Civil aviation and medical applications ã   EMI fltering ã   Cables and connectors ã   Gearboxes Sandard Feaures ã Max continuous torque ranging rom 0.66 to 158.6 mNm ã   Speed ranging rom 11,000 RPM (8mm) to 5,500 RPM (35mm) ã   Motor regulation actor(R/K 2 ) ranging rom 1,900 to .3 10 3 /Nms Selec Eiher Sleever Ball Bearingsmdels Available fr8  35 DiaeerLng life PaenedCuain SysyeVirually EliinaesBrush mainenanceopinal Gearbxes andmagneic r opicalEncders Are Easily Added High Efciency Design -Ideal for Battery-Fed Applications Irnless Rr CilEnables High Accelerain  Looking or a lighter motor with more torque?35GLT brush dc coreless motor rom Portescap might be the solution or your needs.The 35GLT provides a 40% increase in torque-to-volume ratio over most average ironcore motors. A eatured multi-layer coil improves perormance and oers insulatingreinorcement, resulting in improved heat dissipation. Weighing in at only 360 gramsand providing an energy eiciency o 85%, the 35GLT oers less power draw andexcellent space savings. Innovation is a passion at Portescap. It defnes your success, and defnes our uture. We help you get theright products to market aster, through rapid prototyping and collaborative engineering. With experiencedR&D and application engineering teams in North America, Europe, and Asia, Portescap is prepared to createhigh-quality precision motors, in a variety o confgurations and rame sizes or use in diverse environments. SPOTLIGHT ON INNOVATION Demanding application? Portescap is up or the challenge. Take our latest innovation Athlonix in high power density motors. Ultra-compact, anddesigned or lower joule heating or sustainable perormance over the lie o your product, Portescap’s Athlonix motors deliverunparalleled speed-to-torque perormance. And better energy eiciency brings you savings while helping you achieve yourgreen goals. Athlonix motors are available in 12, 16, and 22mm.More Endurance. Higher Power Density. Smaller Package The quest or high-resolution eedback with accuracy in speed is the essenceo Portescap’s innovative MR2 magneto resistive encoder . These miniatureencoders accommodate motors rom rame sizes o 8mm to 35mm with superiorintegration schemes to acilitate a compact assembly with motors. And, with aresolution o 2 to 1024 lines, Portescap’s MR2 encoders meet your applicationrequirements today - while lexibly adapting to your evolving needs.  Brush DC mr Basics All DC motors, including the ironless rotor motors, are composed o three principle sub assemblies: 1. Stator2. Brush Holder Endcap3. Rotor1. The stator The stator consists o the central, cylindrical permanent magnet, the core which supports the bearings, and the steel tubewhich completes the magnetic circuit. All three o these parts are held together by the motor ront plate, or the mountingplate. The magnetic core is magnetized diametrically ater it has been mounted in the magnetic system 2. The Brush Holder Endcap The Brush Holder Endcap is made o a plastic material. Depending on the intended use o the motor, the brush could beo two dierent types: ã   Carbon type, using copper grahite or silver graphite, such as those ound in conventional motors with iron rotors. ã   Multiwire type, using precious metals. 3. The Rotor O the three sub-assemblies, the one that is most characteristic o this type o motor is the ironless, bell-shaped rotor.There are primarily our dierent methods o abricating these ironless armatures utilized in present-day technology. A — In the conventional way, the various sections o the armature are wound separately, then shaped and assembledto orm a cylindrical shell which is glass yarn reinorced, epoxy resin coated, and cured. It is o interest to note therelatively large coil heads which do not participate in the creation o any torque. Cnsrucin f Prescap rs wihirn less rr DC rs CableClapSar tubeSleeve r BallBearingmeallic Ally BrushCuain SyseCllecrSelf Suppring High PackingDensiy Rr Cil High Efciency High Strength Rare Earh magne
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