SKF, SNR, and Nachi are all current suppliers to OEM. It was SKF that supplied the infamous "wrong metallurgy" bearings to Stihl for the 046 during 1997 that would only last around 240 hours before both bearings would blow. That cost Stihl millions of dollars in warranty claims and labor. It was also SKF that supplied the bearings to Stihl for the first generation HT-101 pruner head that ended up having loads of problems.