Ma type spherical roller bearing guided by outer ring , for example 22311-e1a-k-ma-t41a , detailed suffix meaning , e1 stands for enhanced design , a means improved internal structure, k means taper, ma means solid brass cage , guided by outer ring , t41a means this type bearing suitable for vibration loading, narrow diameter tolerance zone , internal radial clearance is c4. Ma type spherical roller bearing mainly used in mining machine and vibration pressure equipment , such as vibrating screen, road roller, sawtooth cutting machinery. Wsbc 22311-e1a-k-ma-t41a can replace to skf , fag , timken brand . High quality bearing with competitive price will help you save much factory production cost . We can guarantee promptly delivery and after sale service , if you have demand for wsbc 22311-e1a-k-ma-t41a bearing or want know more about bearings , pls do free to contact us .