Want to know what is the difference between cylindrical roller bearings RN312EM and RN312M? Where is it produced?
Both for copper cage, the same size, E on behalf of the internal structure design, and some manufacturers do not mark! Domestic Pegasus bearing is the best.
Is not the outer roller is not the same size?......
Ew (excircle diameter)RN312EM Ew=115RN312M Ew=113RN312EM is reinforced type, it is new structure, the roller is lengthened and lengthened. RN312M is the old structure.Products are generally required to order.
