BAA1131 Bearing Specification:
BAA1131 bearing is headset bearing for bicycle.
For this bearing,
Inner Diameter (d): 30mm
Outer Diameter (D): 41.8mm
Width (B): 6.5mm
Contact Angle: 36º/45º
Weight: 0.04kg
Seal Type: rubber seal on 2 sides
Material: chrome steel with galvanization