The inner and outer rings are made of bearing steel GCR15.
Steel balls are made of G10 bearing steel GCR15.
Special grease for headset bearing is added inside.
Bearing steel color is silver Black is surface oxidation treatment.
Description
Bearings
Details:
Item: ACB39469H7/ACB39469H7-BO
Structure: Ball Bearing
Inside And Outerside Bevel: 45°/45°
Dimensions: 39x46.9x7mm
ID (inner diameter): 39.00 mm
OD (outer diameter): 46.90 mm
Width: 7.00 mm