6806 Open Bore Adapter For Half Inch RodOur 6806 open bore adapter is used to press 42x30 sealed bearings. The adapter is machined with one step at 30mm OD, which fits into the center of the sealed bearing. Common bearing size for BB30 frames and bottom brackets. Installs: 6806 bearing Inner Step Outer Diameter: 29. 9mm Outer Diameter: 41. 8mm Thickness: 7mm Thru Hole Diameter: 0. 387" (9. 8mm) Inner hole sized to fit 1 2" threaded rod Compatible BP0006, BP0007 Machined, red anodized
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