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April 2017 Bearings • Maintenance • Composite Materials • Raceway Damage

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April 2017 Bearings • Maintenance • Composite Materials • Raceway Damage ® APRIL 2017 BEARINGS • MAINTENANCE • COMPOSITE MATERIALS • RACEWAY DAMAGE BRAKES BACKLASH IN MAMMOGRAPHY SYSTEMS AUTOMOTIVE MEET OUR BEARINGS BLOGGER www.powertransmission.com Think Heading 1 Body copy text .Harum fugit aut aspellit omnihil simuste mporrume volumquam fugit harumqui insideipsam, ipsanditis doles earum resed eatithe sae dita dolorate box. rest eos ipsam, se maxim auten- explitate lam, quidesti officia dolor sam, volup- delest volum doloremquis mo tem. It rest tatis expliti onsecatio. Itat exero to beat hitio Sam et doluptat rercienet, optatat urissunt vendi nulpa et veri omnim nihillaccus, offictibus volupta tasped quassi cone rere perferf erecea- eatet lab idi tessint volore in reptinvellit quamus, quod minimet ut quid ut preribusdam ut opta volorem et am verum unt. simuste mporrume volumquam fugit harumqui Heading 2 Optimizedita dolorate restdriveline eos ipsam, se performancemaxim auten- with a Sam et doluptat rercienet, optatat urissunt rangedelest volumof proven doloremquis moSKF tem. Itgearbox rest solutions. volupta tasped quassi cone rere perferf erecea- quod minimet ut quid ut preribusdam ut opta With expertise in bearings, seals, – up to 20% more load for a given life of lubrication and condition monitoring, a gear unit. SKF can add value to the complete gear And when needed, complete gearbox unit by enhancing reliability and remanufacturing services from SKF can performance, while improving the cost- return gearboxes to like-new or even effectiveness of the complete solution. better-than-new condition. For example, upgraded SKF Explorer For more information, visit skf.com spherical roller bearings have enhanced wear and contamination resistance, and are better able to sustain external loads + .0 0 10 +.005 +.0020 +.0010 +.0050 +.0020 -.0000 -.000 -.0000 -.0000 -.0000 -.0000 CONTENTS ® APRIL 2017 26 [ ] FEATURE ARTICLES [32] [20] Meet Norm Parker — Bearings Blogger TECHNICAL ARTICLES Our bearings blogger goes hardcopy. [40] Ask the Expert: Gear Materials [26] The Science of Radial Shaft Seals [42] Performance Testing of Troubleshooting critical rotating equipment Composite Bearing Materials applications. for Large Hydraulic CylindersSB - 26 - 24 B - E04 - L (LHCs) [32] Controlling Backlash in UNIT TYPE HUB Getting it right when choosing materials L (LONG) Mammography Systems FRAME SIZE S (SHORT) Express delivery program saves the day for for heavy duty bearings. mammography system designer. VOLTAGE ∅ F BORE [48] Baldor Motor Series:24 VDC OR E (ENGLISH) Understanding Torque90 VDC M (METRIC) [36] The Hidden Cost of Incomplete Torque’s relationship to horsepower; Hydrodynamic Bearing BURNISHED types of loads most frequently Maintenance encountered. Diagnosing and correcting bearing vibration issues. Vol. 11, No. 3. POWER TRANSMISSION ENGINEERING (ISSN 2331-2483) is published monthly except in January, May, July and November by Randall Publications LLC, 1840 Jarvis Ave., Elk Grove Village, IL 60007, (847) 437-6604. Cover price $7.00. U.S. Periodicals Postage Paid at Elk Grove Village IL and at additional mailing offices. Send address changes to POWER TRANSMISSION ENGINEERING, 1840 Jarvis Ave., Elk Grove Village, IL 60007. Randall Publications LLC makes every effort to ensure that the processes described in POWER TRANSMISSION ENGINEERING conform to sound engineering practice. Neither the authors nor the publisher can be held responsible for injuries sustained while following the procedures described. Postmaster: Send address changes to POWER TRANSMISSION ENGINEERING, 1840 Jarvis Avenue, Elk Grove Village, IL, 60007. ©2017 Contents copyrighted by RANDALL PUBLICATIONS, LLC. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system, without permission in writing from the publisher. Contents of ads are subject to Publisher’s approval. APRIL 2017 Power Transmission Engineering 1 CONTENTS VOL. 11, NO. 3 [04] PTExtras Check us out — www.powertransmission. com — for latest videos, blog postings, social media and events [06] Publisher’s Page Bearing Good News [08] Product News New hardware from ART Technologies, Bosch Rexroth, Parker and more. Flexible shafts for [34] Engineering sMart special machinery Products and services marketplace Effi cient automation starts [54] Industry News with effi cient shafts. Trends, comings-and-goings, updates [58] Events SUHNER MANUFACTURING, INC. AWEA Wind Power Show Rome, GA 30161 706-235-8046 www.suhner.com [60] Calendar [email protected] April 30-May 3: CIM 2017 Convention, Montreal, Quebec May 2-4: AGMA Gearbox System Design, Clearwater Beach, Florida May 8-10: Industrial Design and Engineering Show, Cleveland, OH [62] Advertiser Index How and where to reach every supplier in this issue. [63] Subscriptions Free subscriptions, anywhere in the world. [64] Power Play Battle Bots (Victorian Edition) ® APRIL 2017 BEARINGS • MAINTENANCE • COMPOSITE MATERIALS • RACEWAY DAMAGE BRAKES BACKLASH IN MAMMOGRAPHY SYSTEMS AUTOMOTIVE MEET OUR BEARINGS BLOGGER www.powertransmission.com WWW.POWERTRANSMISSION.COM 2 Power Transmission Engineering APRIL 2017 ]———— Stock and Custom Mechanical Components One Convenient Source Custom Design, Engineering & Manufacturing • Timing Belts and Pulleys Precision Gears & Gearboxes • Precision Machined Components Molded Components • Mechanical Assemblies ISO 9001 AS REGISTERED 9100 0 U st. 195 SA Manufacturer • E We Provide Total Motion Control Solutions Design ► Engineer ► Manufacture ► Assemble SETTING IDEAS INTO MOTION Ship Complete Subassemblies for a Wide Variety of Product Applications. Call our Engineers for a Design Consultation and Place Your Order Today. Phone: (800) 819-8900 Fax: (516) 326-8827 www.sdp-si.com Stock and Custom Mechanical Components One Convienient Source.indd 1 1/11/17 8:43 AM PTExtras www.powertransmission.com PTE Videos Regal Power Transmission Solutions offers the Sealmaster Randall Publications LLC Large Bore Performance Gold 1840 Jarvis Avenue Line Mounted Ball Bearings Elk Grove Village, IL 60007 with a patented* TIME SAVING Phone: (847) 437-6604 axial groove in the inner ring Fax: (847) 437-6618 bore to allow for easier bearing EDITORIAL removal and ability to reuse Publisher & Editor-in-Chief the shafting with minimal Michael Goldstein clean up. See the video here: [email protected] www.powertransmission.com/ Managing Editor & Associate Publisher Randy Stott videos/Regal-Power-Transmission- [email protected] SealMaster-Bearing-Removal/ Senior Editor KEB’s Tooth Clutches Jack McGuinn provide three times the [email protected] torque in a given size Senior Editor Matthew Jaster compared to friction [email protected] clutches. The clutches News Editor are electrically engaged Alex Cannella and can be used in both [email protected] wet and dry operation. Editorial Consultant Typical applications Paul R. Goldstein include medical ART machinery and test Art Director stands. Check out the David Ropinski video here: [email protected] ADVERTISING http://www.powertransmission.com/ Advertising Sales Manager videos/Tooth-Clutches-from-KEB- & Associate Publisher America-/ Dave Friedman [email protected] Event Spotlight: PowderMet 2017 China Sales Agent Eric Wu The International Conference on Powder Metallurgy and Eastco Industry Co., Ltd. Particulate Materials will present leading companies Tel: (86)(21) 52305107 featuring the latest PM equipment, powders, products, and Fax: (86)(21) 52305106 services. Over 200 worldwide industry experts will present Cell: (86) 13817160576 [email protected] the latest in powder metallurgy, particulate materials and metal additive manufacturing. For more information, Materials Coordinator Dorothy Fiandaca visit: www.powertransmission.com/news/8010/ [email protected] Motor Matters PowderMet-2017/ CIRCULATION with George Circulation Manager Holling Carol Tratar [email protected] Georg Holling (PI) is an in-demand Circulation Coordinator consultant to many major U.S. and Barbara Novak International corporations for motors [email protected] and drives as well as a contributing Stay Connected RANDALL PUBLICATIONS STAFF blogger for PTE Magazine. Recent Follow us on Twitter President topics include motors in high-temp twitter.com/#!/PowerTransMag Michael Goldstein environments, motor design tools and Accounting more. Read his latest entries at: Luann Harrold http://powertransmission.com/blog/ Connect with us on LinkedIn category/motor-matters-with-george/ www.linkedin.com/groups/ Power-Transmission-Engineering- PTE-2950055 Subscribe Online www.powertransmission.com/ subscribe.htm WWW.POWERTRANSMISSION.COM 4 Power Transmission Engineering APRIL 2017 ]———— PRECISE. ROBUST. AVAILABLE These new generation CD® Couplings feature zero backlash precision and high torsional stiffness. They answer today’s demanding needs in servo motor applications with high reverse loads and positioning requirements. New clamp style hubs handle increased torque on shafts without using keyways. Manufactured of RoHS compliant materials. Now size, select
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