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SKF Launches New Cylindrical Roller Bearing Units To Extend

Writer: Eric Bearing Limited

SKF launched a new SKF passenger car bearing 1.7 Mkm cylindrical roller bearing unit (CRU) to extend the maintenance interval of passenger train wheels.


Gothenburg, Sweden, September 18, 2018: The SKF passenger car bearing 1.7 Mkm CRU was launched at this year's InnoTrans 2018. The product is a sealing and lubrication unit with a train mileage of 1.7 Mkm during the maintenance interval. The introduction of the CRU model complements the 1.7 Mkm range of SKF passenger car bearings and brings longer maintenance operation intervals for railway operators.

Using SKF bus bearing 1.7 Mkm (which also includes the earlier tapered bearing unit (TBU) model), by aligning axlebox bearing maintenance with wheel maintenance, operators can obtain considerable efficiency improvements. In the case of reducing the number of bearing replacements, achieving two maintenance operations with one shutdown also means that the overall maintenance cost will be greatly reduced . 

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Thanks to the improved labyrinth sealing system, coating outer and inner diameters, and bainite heat treatment technology, the new CRU provides operators with a powerful solution that can achieve maintenance intervals of 1.7 Mkm. The labyrinth sealing system is combined with the polymer gasket on the backing ring. This combination can not only reduce the fretting corrosion between the contact area of ??the backing ring and the inner ring, but also ensure the high-quality lubrication of the bearing unit and maintain performance.

SKF Commercial Engineer Ondrej Novotny said: “In order to cope with increasing competition, railway operators need to continuously increase the life cycle costs of their trains without affecting service levels. In the past, wheels were the most common bottleneck in extending maintenance intervals. However, due to recent technological developments, their performance has now surpassed that of bearings. However, through the use of SKF passenger bearings 1.7 Mkm CRU wheel maintenance intervals to match, can help operators to combine the two, saving time and money. Through the application With SKF's industry insight, technology and professional services, we are helping railway operators achieve smarter and more efficient practices throughout the maintenance life cycle . 


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