sealing
TECHNOLOGY
ISSN 1350-4789 December July-December 2016 2016
SKF seal improves performance and extends maintenance intervals in high-speed rail applications
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KF, a major supplier of seals, bearings, mechatronics, lubrication systems and services that cover technical support, maintenance and reliability, engineering consulting and training, has introduced a seal that has been developed to save energy and improve performance and extend maintenance intervals in high-speed rail applications. Introduced to the market for the first time at InnoTrans 2016, which was held recently in Berlin, Germany, the SKF Centrifugal Lip Seal features an innovative design that has a unique combination of both contacting and non-
contacting sealing on wheel-set bearing units in one product. According to SKF, the seal allows for an optimised friction pattern throughout the operating cycle of high-speed trains. It incorporates a lip that is closed when the vehicle is travelling at low start and stop speeds, to effectively exclude contamination from the bearing. When the speed is increased and the centrifugal force reaches a certain limit the lip opens and it becomes an almost zero friction seal, whilst the same centrifugal force prevents the ingress of pollution. This intelligent “two-seals-in-one” design balances the trade-off between sealing function and friction torque – eliminating the need for a compromise on either. As a result, the unit can operate at a low temperature, and extended maintenance intervals can be realised to cut the cost of servicing and improve the reliability of the application through cleaner grease. The significantly enhanced efficiency and energy savings can also lead to a reduction in the environmental impact of high-speed rail. Continued on page 16...
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Contents Contents
News
SKF seal improves performance and extends maintenance intervals in high-speed rail applications
1 & 16
Bal Seal expands product range to meet demand for large tolerance sealing
2
PDGS compressor seal stands up to gruelling test
2
Strainer gaskets protect product integrity and downstream equipment
3
Integral gallery containing coolant reduces piston temperature
3
Oil and gas market offered XploR V9T82 fluoroelastomer
4
Flexitallic highlights its offshore sealing technology at ADIPEC
4
Tool enables safer bolting with reduced risk of pinch points
16
Company News Arkema acquires sealant maker and supplier Den Braven
5
Hydratight secures new contract with Statoil
5
Trelleborg buys US-based seal distributor
6
Academy establishes permanent training centre in Teesside, UK
6
Publications of Interest Aerospace adhesives and sealants market worth $2.41 billion by 2021
6
Features Conference report: 19th International Sealing Conference
7
Frictional surface performance enhancement using carbon nano-species derived from carbides
9
Regulars In Brief
3 & 5
Patents 14
SKF’s Centrifugal Lip Seal’s design has a unique combination of both contacting and non-contacting sealing on wheel-set bearing units in one product (top). Its design saves energy, improves performance and extends maintenance intervals in high-speed rail applications (bottom).
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Events Calendar
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ISSN 1350-4789/16 1350-4789/10 © 2016 2011 Elsevier Ltd. All rights reserved. This journal and the individual contributions contained in it are protected under copyright by Elsevier Ltd, and the following terms and conditions apply to their use: Photocopying Single photocopies of single articles may be made for personal use as allowed by national copyright laws. Permission of the publisher and payment of a fee is required for all other photocopying, including multiple or systematic copying, copying for advertising or promotional purposes, resale, and all forms of document delivery. Special rates are available for educational institutions that wish to make photocopies for non-profit educational classroom use.
EVENTS/NEWS
EVENTS CALENDAR 7–11 March 2017 IFPE 2017 Las Vegas, Nevada, USA Contact: Association of Equipment Manufacturers, 6737 West Washington St Suite 2400, Milwaukee, WI 53214-5647, USA Tel: +1 414 298 4167, Fax: +1 414 272 2672 Email:
[email protected] Web: www.ifpe.com 8–13 March 2017 2017 Annual Meeting & 100th Anniversary – Hydraulic Institute Orlando, Florida Contact: Hydraulic Institute, 6 Campus Drive, First Floor North Parsippany, NJ 07054-4405, USA Tel: +1 973 267 9700, Fax: +1 973 267 9055 Web: www.pumps.org/Conferences/ 2017_Annual_Conference.aspx 22–23 March 2017 Steam Turbine and Generator User Group 2017 West Midlands, UK
...Continued from front page ‘The SKF Centrifugal Lip Seal has been developed specifically to overcome the traditional sealing quandary manufacturers face with high-speed train wheel-set bearing units,’ explained Maurizio Martinetti, Senior Project Manager, SKF Product Development. ‘No lip contact at low speeds meant there was a risk of contamination, whilst contact at high speeds led to energy-consuming fric-
Contact: Event Enquiries, Institution of Mechanical Engineers, 1 Birdcage Walk, Westminster, London SW1H 9JJ, UK Tel: +44 207 973 1251 Email:
[email protected] Web: http://events.imeche.org/ ViewEvent?e=6443 4–6 April 2017 WCX17: SAE World Congress Experience Detroit, Michigan, USA Contact: SAE International, SAE World Headquarters, 400 Commonwealth Drive, Warrendale, PA 15096-0001, USA Tel: +1 724 776 4970 Email:
[email protected] Web: www.wcx17.org 6–7 June 2017 Oil & Gas Polymer Engineering Texas 2017 Houston, Texas, USA Contact: Chrissy Stelluti, Conference Manager, Applied Market Information Llc, 1210 Broadcasting Road, Suite 103,
tion and its other associated problems, such as excessive operating temperatures and the need for frequent maintenance. However, this new seal eliminates all of these issues for consistently efficient and high performance operation.’ Contacts: SKF, SE-415 50 Göteborg, Sweden. Tel: +46 31 337 1000, Fax: +46 31 337 2832, Email:
[email protected],
Wyomissing, PA 19610, USA Tel: +1 610 478 0800, Fax: +1 610 478 0900 Email:
[email protected], Web: www.amiplastics.com/events/ event?Code=C813 20–21 June 2017 Valve World Americas Expo & Conference 2017 Houston, Texas, USA Contact: Josh Gillen, KCI Publishing Corp, 36 King Street East, Suite 701, Toronto, ON M5C 1E5, Canada Tel: +1 416 361 7030 Email:
[email protected] Web: www.valveworldexpoamericas.com 26–30 June 2017 Turbomachinery Technical Conference & Exposition Charlotte, North Carolina, USA Contact: The American Society of Mechanical Engineers, Two Park Avenue, New York, NY 10016-5990, USA Tel: +1 973 882 1170 Web: www.asme.org/events/turbo-expo Web: www.skf.com/group/industry-solutions/railways/ index.html SKF (UK) Ltd, Sundon Park Road, Luton, Bedfordshire LU3 3BH, UK. Tel: +44 1582 490049, Fax: +44 1582 848091, Web: www.skf.co.uk SKF USA Inc, 890 Forty Foot Road, Lansdale, PA 19446. Tel: +1 267 436 6000, Fax: + 1 267 436 6001, Web: www.skf.com/us
Tool enables safer bolting with reduced risk of pinch points
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oint integrity specialist Hydratight has launched an accessory for its RSL torque wrench product-line to increase safety and minimise the possibility of pinching during bolting operations. Called the Safe T, it is designed to enable a single person to operate the wrench and its hydraulic pump simultaneously. The tool houses a control panel with the two main operational buttons that must be pressed at the same time, ensuring safe operation. If the
Hydratight’s Safe T accessory for its RSL torque wrench product-line has been developed to increase safety and minimise the possibility of pinching during bolting operations.
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Sealing Technology
operator’s hands are released, the torque wrench and hydraulic pump will cease to operate immediately, says the company. Typically, one technician would operate the torque wrench and another would control the hydraulic pump. With the Safe T, any chance of miscommunication in a noisy environment is eliminated – improving the safety of the operation. Chad Brooks, Product Market Leader, Hydratight, commented: ‘Our customers
identified pinch points in their work processes and we are pleased that this tool addresses these important safety concerns. We have designed versions for use with electric and air pumps, and the low-profile design option will work with hex wrenches in tight spots.’ ‘We have used a lightweight, durable aluminium housing and large diameter buttons for ease-of-use by a single technician. Both the RSL20 and RSL30 models also have built in loops for lifting straps. We have thoroughly tested the Safe T and it is ready for use.’ Contacts: Hydratight Ltd, Bentley Road South, Darlaston, West Midlands WS10 8LQ, UK. Tel: +44 121 5050600, Fax: +44 121 5050800, Web: www.hydratight.com Hydratight Inc, 1102 Hall Court, Deer Park, TX 77536, USA. Tel: +1 713 860 4200, Fax: +1 713 860 4201, Email:
[email protected], Web: www.hydratight.com
December 2016