Spherical roller bearing SNR

SNR has conducted joint research plans with its steel suppliers, focusing on steel quality evolution; now, the company uses special alloys featuring the utmost cleanliness level. This new steel quality, generalised on our spherical roller bearings, provides higher performance and endurance than the other steel grades used so far.

Furthermore, the heat treatment which is especially applied to the SNR spherical roller bearings guarantees dimensional stability up to 200 °C. The quality of this treatment results in higher endurance and higher ultimate strength and wear resistance of the bearings, allowing them to sustain the most aggressive operating conditions.

Therefore, the combined evolution of the materials and technologies gave rise to an 18 % increase in the dynamic load capacity of the SNR spherical roller bearings, as well as a 75 % service life extension, making our bearings the best performers on the market, while remaining within the same ISO standardisation envelope and in compliance with the ISO standard for basic dynamic load calculation.

Application examples: Rolling mill cages, large reduction gears, large industrial fans, printing press cylinders, quarry machines…

More specifications...