... and sphere of our production: 1) Single row, paired face-to-face 2) Single row, paired bac. Sizes and sphere of ... our production: 1) Single row, paired face-to-face ... ring spacer assembly4) Double-row, with heavy wall cup5) Double-row, TDO configuration 6) Double-row, TDI configuration 7) Double-row, with flange cup8) Double-row, with extended ...