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Advanced Engineering 2019

NEC, Birmingham(B40 1NT)

30/10/2019 - 31/10/2019

The UK's largest annual advanced manufacturing trade show, Advanced Engineering is your opportunity to (more)

Smart Factory Expo

Exhibition Centre Liverpool (L3 4FP)

13/11/2019 - 14/11/2019

Europe's best digital manufacturing show: bigger and better for 2019 Built around eight tech-focused (more)

The right bearing makes a big difference

The right bearing makes a big difference Virtually every rotating element in industrial machinery currently relies on one or more bearings for its effective operation. However, far from all of these machines using a 'one size fits all' commodity product, which bearings are commonly perceived to be, a wide variety of specially designed bearing units are available, offering a number of benefits to engineers, not only increasing the performance of machinery but also its service life, while reducing downtime and maintenance costs. To specify a bearing arrangement correctly for any application, it is necessary not only to select a suitable bearing type and size, but also to consider a number of other factors. These include the design and suitability of associated components such as the shaft and housing, the value of applied load to the bearing whether radial, axial or a combination of both, which holding devices are to be used, and whether the seals to be incorporated are adequate for resisting ingress of contamination from the bearing's operating environment. It is also important to take into consideration the type and quality of lubricant, the precision and speed requirements of the bearing, and how easy it will be to install and remove if maintenance becomes necessary. Each individual decision affects the performance, reliability and economy of the bearing arrangement, and ultimately the machine in which it is to be used. Each bearing type displays characteristic properties, based on its design, which make it more appropriate for certain applications. It should also be noted that specifying the correct type of seal is crucial, with bearings and seals being considered as constituting a system, with different seals available in many designs and in different materials to complement various bearing designs. Many factors influence the choice of an appropriate seal such as the type of lubrication used, the sliding velocity at the counterface, whether the seal will be mounted vertically or horizontally, shaft misalignment, and operating temperature.
 

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