October 2018 Complete Issue
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® OCTOBER 2018 LUBRICATION GEARBOX PERFORMANCE IMPROVEMENTS GEARMOTORS ADAPTING TO A 4.0 WORLD www.powertransmission.com Speed and power, in perfect sync. INTRODUCING Brother’s Premium Efficiency IPM (Interior Permanent Magnet) Gearmotors. Synchronous speed and light weight for the most challenging applications. • Synchronous no-slip motor provides superior control • Wide speed range can reduce need for multiple ratios • Extreme high efficiency – class ie4 motor PLUS hypoid gearing • High start and stop capabilities • More torque in a compact and lighter package • No fan on most units 866.523.6283 BrotherGearmotors.com Call us today for a sample gearmotor to try out! [email protected] 2054_Brother IPM_Jets ad_PTE_8x10.75_5.18.18_PUB.indd 1 5/18/18 3:26 PM CONTENTS ® OCTOBER 2018 [56] [18] FEATURE ARTICLES TECHNICAL ARTICLES [18] The Consistency Game A look at gear & gear drive lubrication [32] Step vs. Servo — Selecting the Best performance improvements. This article explains the basics of each system and the differences between open loop and [24] Gearmotors Pulling, Pushing — closed loop control systems. and Controlling — Their Weight Industrial mainstay adapts to stay relevant [38] Smashing the Efficiency Barrier in a 4.0 world. — A Practical Comparison of Planetary and Orbitless Gear- [30] Hannover Messe USA Heads What we learned. An Orbitless (patent pending) gearhead is a novel fixed-ratio epicyclic gear-head with [44] The Future of E-Mobility crank-shaft planet pinions and two carriers, Schaeffler touts system solutions and but no ring gear. electrification advances at Detroit symposium. Vol. 12, No. 7. 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. OCTOBER 2018 Power Transmission Engineering 1 CONTENTS Full Service Standard & Custom Gear Production VOL. 12, NO. 7 P ET OL™ [04] PTExtras Gear i n g Online videos and exclusive articles from www.powertransmission.com. [06] Publisher’s Page Gear Milling of external involute gear forms Show me something. including, but not limited to: • Helical – Double Helical – Spur – Herringbone [08] Product News Gearing Solutions provides yaw Metric drives for wind power; SKF presents tooth forms electromechanical actuators. ••ReverseUp to AGMA Engineering 12 Quality of StandardLevel (Standard & 2000-A88) Tooth Profile Modification for prototypes or [28] Engineering sMart production Products and services marketplace. • [47] Calendar •Custom Metrology October 31-November 1: Advanced ZEISS PRISMO® Navigator Engineering 2018, Birmingham, UK; with rotary axisq December 3-6: CTI Symposium, Germany; December 4-6: Power-Gen International, Orlando. [48] Industry News BSA Excellence Awards, plus new hires and pDMG DMC 160 FD duoBlock® other company news. 5 axis vertical mill-turn [54] Advertiser Index How and where to reach every supplier in this issue. ll Toda Ca y [55] Subscriptions 254.675.8651 Free subscriptions, anywhere in the world. For a [56] Power Play Quote Earthquake-proofing a building. Capacity ® OCTOBER 2018 •2" to 16" OD pinions up to 64" in length LUBRICATION GEARBOX PERFORMANCE IMPROVEMENTS •Up to 56" OD gears and 20" face width GEARMOTORS ADAPTING TO A 4.0 WORLD •Metrology:~ ISO 9001 (X)62" Quality (Y)118" System (Z)55" Certified ~ Manufacturing quality products since 1927 Clifton, Texas • www.gearench.com Cover photo courtesy of [email protected] • (254)675-8651 • fax (254)675-6100 Kluber Lubrication www.powertransmission.com WWW.POWERTRANSMISSION.COM 2 Power Transmission Engineering OCTOBER 2018 ]———— — ABB servo motors precise control in a compact design ABB’s AC servo motors were created for industrial, automated applications that require precise control for positioning, speed and acceleration such as packaging, labeling, wrapping, and cutting. Designed for durability, we also offer a wide choice of inertia, winding, and feedback options. More torque. Less cogging. Superior performance. 479-646-4711 new.abb.com/motors-generators BAL ABB PTE Servo Motors Ad_0718.indd 1 9/14/18 3:13 PM PTExtras www.powertransmission.com Editor’s Choice: Cooling Tower Components: Pros and Cons Randall Publications LLC 1840 Jarvis Avenue Cooling towers can use several power transmission Elk Grove Village, IL 60007 technologies, including a gear drive, belt drive, direct drive, Phone: (847) 437-6604 and electronically commutated Fax: (847) 437-6618 (EC) drive. Each has advantages and disadvantages. The proper EDITORIAL Publisher & Editor-in-Chief selection strikes an appropriate Michael Goldstein balance of initial cost versus [email protected] operating costs. Learn more at Managing Editor & Associate Publisher www.powertransmission.com/ Randy Stott [email protected] blog/cooling-tower-components- pros-and-cons/ Senior Editor Jack McGuinn [email protected] Senior Editor Matthew Jaster [email protected] Associate Editor Alex Cannella [email protected] PTE Videos Editorial Consultant Ogura Permanent Magnet Brakes Paul R. Goldstein Ogura has created a new animation showing how ART Art Director permanent magnet brakes work. The animation David Ropinski shows an exploded view of the component parts [email protected] and how they interact with each other. Learn ADVERTISING more at: Advertising Sales Manager & Associate Publisher www.powertransmission.com/videos/Ogura- Dave Friedman Permanent-Magnet-Brakes-/ [email protected] eMarketing Specialist Matthew Stott [email protected] China Sales Agent Eric Wu Eastco Industry Co., Ltd. Tel: (86)(21) 52305107 Event Spotlight: Power- Fax: (86)(21) 52305106 Cell: (86) 13817160576 Gen International 2018 Check out the latest reports [email protected] Power-Gen International provides from IMTS 2018 with our PTE-TV Materials Coordinator Revolutions video series here: Dorothy Fiandaca comprehensive coverage of the [email protected] trends, technologies and issues www.powertransmission.com/tv/ CIRCULATION facing the generation sector. Circulation Manager Displaying a wide variety of Carol Tratar products and services, Power- [email protected] Gen International represents a Stay Connected Circulation Coordinator horizontal look at the industry with Follow us on Twitter Barbara Novak key emphasis on new solutions and twitter.com/#!/PowerTransMag [email protected] innovations for the future. Learn RANDALL PUBLICATIONS STAFF more at: President Michael Goldstein www.powertransmission. Connect with us on LinkedIn Accounting com/news/9025/Power-Gen- www.linkedin.com/groups/ Luann Harrold International-2018/ Power-Transmission-Engineering- PTE-2950055 Subscribe Online www.powertransmission.com/ subscribe.htm WWW.POWERTRANSMISSION.COM 4 Power Transmission Engineering OCTOBER 2018 ]———— 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 and see the right CD® Coupling solution for your coupling application with Zero-Max 3D CAD files. Check our FAST deliveries. www.zero-max.com 800.533.1731 Zero-Max_CD Coupling A1C r4 Power Transmission Eng.indd 1 1/26/16 9:19 AM EDITORIAL Randy Stott, Managing Editor Show Me Something Fall is the season of change. But in industrial Ameri- ca, it’s also the season of trade shows. Either way, the season is in full swing. We’ve just come back from a very successful exhibit at AGMA says that Motion + Power Technology Expo will IMTS, which included, for the first time, the Hannover Messe encompass everything that Gear Expo did, plus a whole USA show. We met with hundreds of suppliers in our indus- lot more. “For the first time, we will bring together manu- try, including a great many manufacturers of motion con- facturers, suppliers, buyers and experts in the mechanical trol and mechanical power transmission components and power transmission, fluid power and electrical drive indus- systems. tries,” said Matthew Croson, AGMA President, and Jim Bregi, In fact, we were able to sit down with a number of those AGMA Chairman, in the association’s official press release. suppliers to conduct video interviews as part of our new AGMA has partnered with the National Fluid Power