BKC-0649 - TorqTite, Ceramic, XD15 Corsa, 45 degree Angular Contact, Bearing Bottom Bracket for PF30 Framesets to 30mm Cranksets (over 104mm wide) TH-873 but is more often used

but is more often used as a pivot bearing

so you never have to guess if there is grease inside

61803 LLU/LLB CN- ABEC-5 Radial Bearing (CN clearance) - 17mm x 26mm x 5mm -

6703 2RS - ABEC-3 Radial Bearing (C3 clearance) - 17mm x 23mm x 4mm -

This bearing has been used as a suspension pivot bearing by a number of bicycle brands including Orbea and Santa Cruz

BKC-0649 - TorqTite, Ceramic, XD15 Corsa, 45 degree Angular Contact, Bearing Bottom Bracket for PF30 Framesets to 30mm Cranksets (over 104mm wide) TH-873 but is more often usedBKC 0649 TorqTite, Ceramic, XD15 Corsa, 45 degree Angular Contact, Bearing Bottom Bracket for PF30 Framesets to 30mm Cranksets (for current specification spindles over 104mm wide) You may find the following tools useful for installation and servicing: For bottom bracket installation: BRT 060 MH Bearing press rod and handle set BRT 040 30MM Bottom bracket bearing removal and installation toolkit for 30mm bearings; for use with BRT 060 bearing press BBT