HS has manufactured complete sets of SLEEVE BEARING and SHAFTs, which are main components of Electrical Motor and Generator; we are providing 6,000 sets annually, over 70,000 sets are produced as of now.There are 4 types of BRG. first, Finned Side Flange-Mounted type called HF type.second, Finned centrally Flange-Mounted called HM type.third, Finned Foot-Mounted type called HR type.last, siemens type. this is an exclusive contract with HHI so can't seal.