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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

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• 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

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The Fundamental Idea

• Rollers connect the wheels – wheels do not connect directly– there are no “teeth”

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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

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• 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:

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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