Schaeffler Group Industrial and the INA and FAG brands are among the exhibitors at the ZELLCHEMING-Expo in the Rhein-Main-Hallen in Wiesbaden. From June 29 to July 1, they are presenting products and solutions for paper production machinery and equipment in Hall 9, Booth 932.

The focus of the Schaeffler booth is on the Smart Performance Program of Schaeffler Industrial Aftermarket that offers a comprehensive range of products and services for rolling bearings. The program is used to develop rolling bearing and service solutions based on the principle of Total Cost of Ownership (TCO). These solutions take account of the entire life cycle of machines and equipment and thus lead to noticeably longer operating times and shorter downtimes.

Additional highlights at the booth are the extremely high-performance axial spherical roller bearings, coatings for rolling bearings for the paper industry as well as the Self Aligning Cylindrical Roller bearings for the drying section of paper machines. Schaeffler Group Industrial is also presenting solutions for condition-based maintenance (condition monitoring) including a monitoring concept for suction press rolls and pick-up rolls based on the new online monitoring system FAG DTECT X1 s. The FAG Detector III is an offline monitoring system for monitoring rolling bearings and balancing rotating parts. Another focus is placed on the reconditioning of rolling bearings.

X-life quality for high performance
Axial spherical roller bearings are used in applications where very high axial loads occur and where shaft deflections and/or misalignments of bearing seats must be compensated. E1 axial spherical roller bearings in X-life quality can also be used where high demands are placed on the combination of load and high speed, e.g. in high-speed refiners. They ensure higher machine availability, improved cost-effectiveness and lower operating costs due to reduced energy consumption. This opens up new opportunities for design engineers for increasing performance in an identical design envelope or increasing cost-effectiveness by downsizing.

The ideal non-locating bearing concept
Self Aligning Cylindrical Roller bearings (SACR) are used in drying/glazing cylinders and guiding rolls in paper machines. The prevailing extreme operating conditions require rolling bearings with special characteristics. The SACR bearing compensates large axial displacements in the drying cylinder’s length between inner ring raceway and rolling element without constraining forces. The spherical outer ring and the self-aligning plain bearing ring provide the angular adjustment facility. The bearing is optimally lubricated directly at the rolling contacts via the central oil feed. In conjunction with a plummer block housing that is firmly screw mounted on the machine frame, Self Aligning Cylindrical Roller bearings have a favorable vibration behavior, which is a prerequisite for use in high-speed applications. Other bearing types, e.g. spherical roller bearings, can be replaced by Self Aligning Cylindrical Roller bearings without significant modifications on the housings.

Online monitoring
High plant availability is one of the most important objectives of the paper industry. With the new FAG DTECT X1 s, Schaeffler Industrial Aftermarket is presenting an extremely compact and robust online system for reliable monitoring of complex equipment. This system detects bearing damage, teeth damage or misalignments early and prevents unplanned downtimes.

Based on the FAG DTECT X1 s, the Schaeffler Group has developed a special online monitoring concept, which is used, for example, on suction press rollers and pick-up rolls in the press section of paper machines. This solution focuses on the vibration behavior of the rolls as well as on the bearing positions.

The monitoring system is easy to install and implement in existing units and operates nearly independently. The machine operator does not need specific know-how. The monitoring system also has an integrated GSM modem that facilitates direct communication between the user and the device. It can therefore automatically send alarms and provide measurement data for further analysis. The machine operator can use additional services depending on his requirements and knowledge. For example, he can decide whether he would like Schaeffler Industrial Aftermarket to completely monitor his equipment or whether his employees should receive special training that qualifies them to carry out the monitoring independently. Irrespective of the type of service selected, the customer can always contact Schaeffler Industrial Aftermarket's experts for support.

Reconditioning of rolling bearings
Another important aspect in the paper industry is the reconditioning of rolling bearings. Correct reconditioning contributes to maintaining and extending the performance and operating life of rolling bearings that are already in use. The costs and delivery times for reconditioning are lower than those required for purchasing a comparable, new bearing. The intelligent reuse of expensive raw materials also has a positive effect on the environmental and energy balance.

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