As a member of the ERIKS Group of companies (www.eriks.com) , Revolvo manufactures solid and SRB split roller bearings in siz ... es from 25 mm bore to 1500 mm external diameter, plus imperial equivalents. In addition, the company also manufactures special custom designed and obsolete sizes of inch and metric solid ball & roller bearings. All Revolvo bearings are produced to DIN PO/ABEC 1 standards, with up to P5 available on request. read more