Shell Type Needle Roller Bearings. Needle Roller Cages. Machined Type Needle Roller Bearings. Roller Bearings. Needle Thrust Bearings. Combined Type Needle Roller Bearings. Inner Rings. ... SBM/SBML, SBMW * Most dimensions on SBG corresponds with THK, and we also can support the other brands such as PMI, TBI, STAF, etc. Dimensions. Ball Screw.