Скачать презентацию Put on your thinking caps Which bearing Скачать презентацию Put on your thinking caps Which bearing

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Put on your thinking caps! • Which bearing would you use on your FIRST Put on your thinking caps! • Which bearing would you use on your FIRST robot? : plastic, metal or bronze • Why did you choose that particular bearing? • Which type of bearing would you choose to use on a lawn mower or farming equipment? • Which type of bearing would you choose to use on an outboard, high-speed boat motor? Remember your answers … you might be surprised!

Working Together: FIRST® Robotics and igus® Inc. Working Together: FIRST® Robotics and igus® Inc.

Overview • Who is igus? • What is the Y. E. S. Program? • Overview • Who is igus? • What is the Y. E. S. Program? • Put your thinking cap back on! – Plastic vs. the other guys – Our products – Real-world application examples – Benefits of plastic components

Who is igus Inc. ? • Forty years of experience in industrial machinery components Who is igus Inc. ? • Forty years of experience in industrial machinery components for the motion control industry • Large R&D effort to test wear behavior of plastics • Current product focus: cable carrier, flexible cables, plain bearings, spherical bearings, linear bearings and slides Catalog items from stock.

What is the Y. E. S. Program? • Y. E. S. stands for the What is the Y. E. S. Program? • Y. E. S. stands for the Young Engineers Support Program • Designed to foster the mechanical design ideas and inventions of students who have a passion for engineering • FREE product donations provided to all teams participating in FIRST Robotics

Remember your answers? • Which bearing would you use on your FIRST robot? : Remember your answers? • Which bearing would you use on your FIRST robot? : plastic, metal or bronze • Why did you choose that particular bearing? • Which type of bearing would you choose to use on a lawn mower or farming equipment? • Which type of bearing would you choose to use on an outboard, high-speed boat motor?

Tidbits about bronze bearings • Disadvantages • Advantages – Very sensitive to dirt – Tidbits about bronze bearings • Disadvantages • Advantages – Very sensitive to dirt – Sensitive to edge pressure – High temps breaks down oil – Low chemical resistance – Not suitable for linear movements – Sensitive to impacts and oscillations – Very low coefficient of friction possible – High precision – High rotational speeds possible (1, 200 SFM) – High Px. V value possible (50, 000 PV)

Tidbits about plastic bearings • Advantages – Lightweight – No lubrication needed – Maintenance-free Tidbits about plastic bearings • Advantages – Lightweight – No lubrication needed – Maintenance-free – Dry-running – Vibration-dampening – Dirt- and dust-resistant – Corrision-resistant • Disadvantages – Sensitive to extreme temperature – Sensitive to extremely high loads – Sensitive to extremely high, constant speeds

Plastic vs. Bronze Iglide® • • • Max PSI: Motion: Shafting: Grades available: Dirty Plastic vs. Bronze Iglide® • • • Max PSI: Motion: Shafting: Grades available: Dirty environments: Resists squeaking: Edge loading: Underwater: Suitable for clean rooms: Plastic Contact Service life predictors: Technical data available: Oilite Bronze up to 21, 750 PSI Any (including dual) Any (soft/SS/HR/steel) Over 20 Yes Yes 8, 000 PSI HS rotating Carbon steel, hard 1 No Only if it’s oiled No No ? ?

F Edge pressure metal bearings The bearing material has a low flexibility: the contact F Edge pressure metal bearings The bearing material has a low flexibility: the contact surface between shaft and bearing is only a point. • High specific pressure (load per mm²) • High wear of the bearing • Shaft could be consumed plastic bearings The bearing material has a high flexibility: the contact surface between shaft and bearing is a bigger surface • Lower specific pressure (load per mm²) • Lower wear of the bearing • Shaft will be not consumed!

A closer look at iglide plastic bearings • Features: – – Long-lasting Self-lubricating Maintenance-free A closer look at iglide plastic bearings • Features: – – Long-lasting Self-lubricating Maintenance-free Dust- and dirt-resistant • More than 7, 000 metric and inch bearing sizes and styles from stock

In the real world • Iglide J on lawn mower deck – Enables pivoting In the real world • Iglide J on lawn mower deck – Enables pivoting and linear movement in caster wheel – Plastic bearings outperformed bronze in every test • Benefits of iglide J – – – Withstands high edge pressure Withstands high impact/shock loads Compensates for edge loads Great wear resistance with high loads No grease, no maintenance Corrosion-resistant

In the real world Mercury Marine • Iglide G 300/D on outdoor, high-speed boat In the real world Mercury Marine • Iglide G 300/D on outdoor, high-speed boat motor – Iglide D enables tilt and trim of the motor in the steering mechanism and transform assembly – Iglide G 300 is used in oscillating pivot joints • Benefits of iglide J – Eliminates the need for grease, which contaminates water and potentially harms wildlife – Eliminates maintenance – Low water absorption – Low coefficient of friction – Corrosion-free – In depth test data and predictability methods

In the FIRST arena Carmel High School, Team 868 • Products used – Iglide In the FIRST arena Carmel High School, Team 868 • Products used – Iglide bearings – Igubal® spherical bearings • Used on: – Shooting system – Roller system • Benefits: – Lightweight – Reduced weight of the robot by 20 pounds! Iglide (inside wheel mechanism)

A closer look at igubal spherical bearings • Features – Self-aligning – Oil-free • A closer look at igubal spherical bearings • Features – Self-aligning – Oil-free • Includes spherical, clip, pillow block and rod end bearings

In the real world Big Cat Human Powered Vehicles • Igubal spherical bearings on In the real world Big Cat Human Powered Vehicles • Igubal spherical bearings on a recumbent tricycle – Enables lighter, cleaner and more reliable steering for the rider • Benefits of iglide J – Self-aligning, which diverts the need for exact placement of shafts/housing – Lubrication-free – Corrosion- and wear-resistant – 80% lighter than steel – Excellent vibration-dampening igubal rod end

“The igubal bearings do a better job of absorbing vibration from wheel to arms. “The igubal bearings do a better job of absorbing vibration from wheel to arms. We also can use a really large rod end without increasing the weight too much. This in turn enables us to use a stiffer rod which produces better wheel alignment. ” ~Paulo Camasmie, president of Big Cat Human Powered Vehicles

In the FIRST arena Upper Darby High School, Team #357 • Products used – In the FIRST arena Upper Darby High School, Team #357 • Products used – 34 igubal spherical bearings – 253 iglide Z bearings – Dry. Lin S aluminum shafting • Used on: – Shooting system – Roller system • Benefits: – Lightweight – Self-aligning – Maintenance-free, which saved the team a lot of time!

igubal igubal

A closer look at Dry. Lin R linear bearings • Features: – Corrosion-resistant – A closer look at Dry. Lin R linear bearings • Features: – Corrosion-resistant – Dirt-resistant – Vibration dampening • Ideal alternative to recirculating ball bearings

In the real world International Climbing Machines • Dry. Lin R on a climbing In the real world International Climbing Machines • Dry. Lin R on a climbing machine – Aids machine in scaling walls to eliminate hazardous chemicals from various locations such as bridges, ships and towers • Benefits of Dry. Lin R – Durable – Lightweight, which makes it much easier for the machine to easily adhere to surfaces

The climbing machine is remotely operated by humans safe on the ground. Dry. Lin The climbing machine is remotely operated by humans safe on the ground. Dry. Lin R “The quality of the igus products has been exceptional. ” ~Sam Maggio, ICM president

In the FIRST arena Parkview/North Little Rock High School • Products used – Dry. In the FIRST arena Parkview/North Little Rock High School • Products used – Dry. Lin R – Energy Chain • Used on: – Scissor-lift module – Body of robot to protect wiring • Benefits: – Increased the efficiency of the module by 50% – Lightweight

A closer look at Dry. Lin linear guide systems • Features: – Corrosion-resistant – A closer look at Dry. Lin linear guide systems • Features: – Corrosion-resistant – Lightweight – Lubrication-free • Perfect for diverse, extreme environments

In the real word Schneider Packaging • Dry. Lin W on a bottle-packaging machine In the real word Schneider Packaging • Dry. Lin W on a bottle-packaging machine – Acts as a vertical guide for a grabbing device • Benefits of Dry. Lin W – Able to maintain 24 -hour/four cases per minute operation schedule – Lightweight – Maintenance-free – Corrosion-resistant

In the FIRST arena Gross Pointe North Public Schools, Team #1189 • Products used In the FIRST arena Gross Pointe North Public Schools, Team #1189 • Products used – Dry. Lin N • Used on: – Slide/plunger system, which enabled the robot to shoot game balls into goals • Benefits: – Lightweight – Maintenance-free – Easy to install

A closer look at Energy Chain • All-plastic cable carriers • Guides, protects and A closer look at Energy Chain • All-plastic cable carriers • Guides, protects and extends the service life of cables and hoses on automated machinery • Used in industries such as: – – Robotics Aerospace Automotive Machine tools

In the real world Case IH • Energy Chain on a seed planter – In the real world Case IH • Energy Chain on a seed planter – Guides and protects hydraulic hoses – Eliminates debris build-up – Aids in the retraction process of the planter • Benefits of Energy Chain – Lightweight – Reliable – projected to last for the life of machine, which is 10 years – Corrosion-resistant

In the FIRST arena Poudre High School, Team #159 • Products used – Energy In the FIRST arena Poudre High School, Team #159 • Products used – Energy Chain • Used to: – House and protect cables and wires on robot • Benefits: – Lightweight – Strong enough to endure all bumps, scrapes and shoving that the robot endured Energy Chain

Good luck to all FIRST teams! Visit http: //www. igus. com/yesprogram to request additional Good luck to all FIRST teams! Visit http: //www. igus. com/yesprogram to request additional igus products!