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TechTalk Design Advice: How-to-increase-speeds-and-accelerations-using-plastic-bearings

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A few years ago, we replaced ball bearings on the welding jaw of a vertical-form-fill-seal machine, translating into an impressive 20% increase in throughput.

A few years ago, we replaced ball bearings on the welding jaw of a vertical-form-fill-seal machine, translating into an impressive 20% increase in throughput.

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    TechTalk Design Advice: How-to-increase-speeds-and-accelerations-using-plastic-bearings TechTalk Design Advice: How-to-increase-speeds-and-accelerations-using-plastic-bearings Document Transcript

    • TECHTALK DESIGNADVICE SERIES YOUR CONTACTHOW TO INCREASE SPEEDS ANDACCELERATIONS USING PLASTICBEARINGS A few years ago, we replaced ball Matt Mowry bearings on the welding jaw of a vertical-form-fill-seal machine, which Product manager, DryLin® enabled it to pack more bags of linear bearings and guides product per hour, translating into an Mmowry@igus.com impressive 20% increase in throughput for the end users. Ball bearings dont deliver the same >> Subscribe to e-newsletter performance when reacting to high >> Contacts in your location accelerations / decelerations because (on-site within 24-48 hours)the balls can slide instead of roll due to inertia. This causes damage to >> Request catalogs / freethe shaft, which had forced the engineers working on this particular samplesproject to lower cycle times to prevent failure. >> myigus ®Since our DryLin liner is composed of a sliding film, it’s capable of >> myCatalogunlimited accelerations without any negative affects.The largest consideration when designing a plain bearing into a highacceleration application is that it may require increasing the necessarydrive force (particularly if the payloads center of gravity is not directly igus Inc.on top of the bearings). PO Box 14349If you have accelerations greater than 1G, contact us for design East Providence, RI 02914assistance at sales@igus.com. P. 1-800-527-2747 ®DryLin linear bearings also eliminated lubrication for the company F. (401) 438-7270discussed above, which is crucial in the food industry. DryLin® tested tomore than 8-million cycles - pretty impressive - without measurable sales@igus.comwear and reduced the overall mass and inertia of the sliding systemsince it’s comprised of plastic and aluminum. www.igus.com
    • Here’s another great fact you may not be aware of:plastic bearings can achieve speeds up to 65 feet-per-second (20 m/s) as long as you watch your loads.You may have noticed that all our linear products areoffered primarily with aluminum shafting. This isbecause aluminum has excellent thermal conductivitywhen compared to ferrous materials and is the perfectpartner for plastic bearings. High speeds in conjunctionwith high loads, however, do cause frictional heat buildup and are generally not recommended for anysliding bearings, including plastics. One of the best and most unique tools we offer at igus is our online Expert System - a complimentary database that accurately predicts the life expectancy of our plastic bearings - which can tell you the max average velocity for your application, as well as other valuable information.Useful Links and ToolsDetermine which DryLin® bearing is right for your applicationNeed help specifying a system? Let igus® do the work for you! igus Inc. | 1-800-521-2747 | sales@igus.com | www.igus.com