B.B. Fitting Swedish Type : Cups O.D. 45mm (S/o-8)
Ball Retainers 1/4" X 11 Balls - Optional

B.B. Fitting Assembly Russion Type S/o - 11

B.B. Fitting S/o - 8 with Ball Retainers (1/4" x 9 Balls)

B.B. Fitting Assembly Thompson Type S/o-9, Cups O.D. 40/45mm, Ball Retainers : 3/16" x 10 Balls, Axle Length : 150mm/158mm

B.B. Fitting American Type : Cups O.D. 52mm (S/o-7)
Ball Retainers : 5/16" x 9 Balls - Optional

B.B. Cup RL Type S/o-3 (34.80 x 26 TPI) LH/RH

B.B. Cup Russian Type S/o-3 (M-35 x 1 mm) LH/RH

B.B. Fitting Complete S/o-6 with Ball Retainers 1/4" x 9 Balls