The VumaQuad Italian BB Std Bearing Cups Pair is a set of aluminum cups designed to thread into a 70 mm Italian-standard bottom bracket shell, providing housing for sealed cartridge bearings. These cups enable the adaptation of BB30 or similar cranksets to Italian-threaded frames, offering precise fitment and durable performance. Machined from anodized alloy, they ensure smooth bearing alignment and easy installation or service.
Compatibility: 70 mm Italian-threaded bottom bracket shells (36 × 24 TPI)
Includes: one left-side and one right-side bearing cup
Material: anodized aluminum alloy for corrosion resistance and strength
Bearing interface: accommodates standard 6805 (25 × 37 × 7 mm) sealed cartridge bearings
Installation: thread-in design with integrated seal flange to protect bearings from contaminants
Recommended use: BB30 crank adaptation or bearing replacement in Italian BB frames
Finish: hard-anodized black
Weight: approximately 50 g per cup