1. www.sincroll.com +44 (0) 781 666 7711 sincroll@sincroll.compage 1 Roller Gearing and Transmission Technology sincroll - drive technologies ltd Energy efficiency close to 100% –rollers make pure rolling motion –lower costs, less heat, less abrasion Contact factor up to 20 or more –smaller size, higher power density –higher reliability, better safety Back-lash eliminated –smooth and precise movement –lower noise, longer lifetime - right click on picture or press PageDn to play movie

2. www.sincroll.com +44 (0) 781 666 7711 sincroll@sincroll.compage 2 Rollers roll along the grooves on both wheels simultaneously –rigid coupling between the wheels Forces transmit via “single” contact points between rollers and grooves –lines of contact points determine the lines of the grooves and the shape of the wheels –cross-sectional shape of the grooves is irrelevant –lines of grooves are key to ensure proper forces for pure rolling motion Hertzian stress is well contained as curvatures of rollers and grooves are similar near the contact point - right click on picture to play movie The Fundamental Idea Rollers connect the wheels –wheels do not connect directly –there are no “teeth”

3. www.sincroll.com +44 (0) 781 666 7711 sincroll@sincroll.compage 3 The technology is … universally applicable to any gearing problem –any shaft angles –crossing or non-crossing axes –internal or external coupling –planetary systems and worm gears –linear drives and gear racks highly flexible and rich in design –for any given gearing problem, provides a variety of solutions –highly optimisable and customisable very different from conventional –it is more like a generalised ball screw or roller bearing Design Examples

4. www.sincroll.com +44 (0) 781 666 7711 sincroll@sincroll.compage 4 High-power drives –due to low operating costs, small size and good reliability All vehicles –due especially to high efficiency, high power density, special shape and long lifetime Material handling machines –due especially to smaller actuating torque and reliability Machine tools –due to eliminated back-lash –alternative to ball-screw drives Wind power generators –due to high energy efficiency, high gear-up ratio, no back-lash Standard gear families –especially worm gears and bevel gears due to high efficiency and compact size, respectively Expected Applications  Applicable in all areas of mechanical gearing and power transmission  Including any / high or low: o torque o ratio o precision o rpm o size For example:

5. www.sincroll.com +44 (0) 781 666 7711 sincroll@sincroll.compage 5 Who we are: We are an R&D company with –patented technology –engineering skills and experience –high-quality machinery suitable for prototype making Our business is –to develop further the technology –to commercialise the technology –not focused on mass production Who our ideal partners are: Companies with –product development expertise, R&D resources and facilities –market knowledge, market share, customer relationships Who want to work with us to –expand their product spectrum –increase their market share –lower their costs –stay at the cutting edge of technological developments Our Company and Our Partners  We are looking for collaboration partners to  identify and develop applications for the technology  develop, produce and market products for customers