Precision Parts PrecisionCore Precision Bearing PB-20 Model / SKU: PB-20 Bore Diameter 20 mm Outer Diameter 47 mm Width 14 mm Ultra-high precision angular contact ball bearing for machine tool spindles. Features ceramic hybrid construction for reduced friction, higher speed capability, and extended service life. Quick ViewRequest QuoteAdd to InquiryQuick ViewRequest QuoteAdd to Inquiry