• INA Bearings India Private Limited

Cylindrical Roller Bearings, X-Life

Schaeffler has launched new generation of X-life products that includes the proven high accuracy Cylindrical Roller Bearings of series N10 and NN30, with inside diameters from 30 to 120 mm, with an 18 % increase in basic dynamic load ratings. The bearings are fitted with a window cage made from high performance polyphthalamide (PPA) plastic. In tests, these bearings, particularly the double-row bearings, have demonstrated significant improvements in their suitability for high speeds compared to bearings with brass cages. In this comparison, bearings with the new polyamide cage also feature a reduction in temperature of up to 12 K. This reduced heating also allows up to 25 % increase in speeds in limiting speed tests. A further advantage of the lower running temperature of this polyamide cage compared to the brass cage is an increase in the grease operating life. Using the plastic cage, which is lighter and has better damping characteristics, also has a positive influence on the bearing noise – the bearings run more quietly. Considerably higher performance designs can be achieved due to the increased limiting speeds in the new X-life cylindrical roller bearings. This is particularly true when combined with high speed axial bearings of series BAX. Speed parameters of almost 1 million mm/min are possible with minimal oil lubrication. The Schaeffler Group is a leading global integrated automotive and industrial supplier.