1. Product Overview B20-141 non-standard single-row open deep groove ball bearing, dimension 20mm inner × 62mm outer × 16mm widthAlibaba. Fully interchangeable with NSK B20-141, alternative part 6206R-4C3, matched for Asian passenger car manual transmission input shafts. Open design without rubber seals, stamped low-carbon steel cage, standard C0 clearance, C3 clearance customizable. It bears medium radial load and slight bidirectional axial load, stable low-noise operation