NSK’s APTSURF cylindrical roller bearings offer high precision and performance for machine tool users

Written by: Tom Austin-Morgan | Published:

NSK has released APTSURF, a range of high precision, high performance cylindrical roller bearings designed for the main spindle of machine tools. End users are claimed to benefit from enhanced spindle reliability and an improved surface finish, particularly in lathes and turning centres.

In recent years, the need for better machining quality and greater reliability has expanded in line with expectations from an increasingly competitive component manufacturing marketplace. With APTSURF, NSK set about addressing this issue in a number of ways; firstly through the precision enhancement of each bearing part. Here, the RMS (root mean square) value of vibration at 2000rpm is decreased by 55% in comparison with conventional bearings. In turn, the surface finish quality of parts produced by the lathe will also be improved.

Further enhanced features include an increase of 15% in the dynamic capacity, and 60% longer operating life in comparison with conventional bearings. The bearings are available in outside diameters of up to 360mm and with an accuracy rating of P4 or higher.


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NSK Bearings Europe Ltd
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