Ibyuma by'umupira bya Metric Single Row Deep Groove Radial Ball Bearings biza mu buryo butandukanye. Kuva ku byuma bibiri by'ibumba n'uburinzi, imiterere ya snap ring, ndetse no mu nganda n'iby'igiciro kinini. Ibyuma by'umupira bya Single Row Deep Groove (SRDG) bikunze gukoreshwa mu bikorwa byihuta cyane aho bisaba igihe kirekire n'imikorere ikomeye, ndetse no kwihanganira imigozi mito.
