71902 LLB - ABEC-5 Angular-Contact Bearing (C3 clearance) - 15mm x 28mm x 7mm -
15mm ID shock-eye and 18mm mount width
while the lighter-contact (less seal-drag) LLB seals facing inward keep the lube where it belongs
While stainless steel has approximately 20% less load capacity and is slightly softer than the 52100 chromium steel used in most standard bearings
MAX bearings provide 35-40% more load capacity than standard Angular-Contact bearings by employing a special design where the maximum number of balls (full-complement) are inserted into the bearing
BKC-0652 - TorqTite, Ceramic, XD15 Corsa, 45 degree Angular Contact, Bearing Bottom Bracket for PF30 Framesets to 30mm Cranksets (under 90mm spindle length) Blue TH-873 71902 LLB - ABEC-5 Angular-ContactBKC 0652 TorqTite, Ceramic, XD15 Corsa, 45 degree Angular Contact, Bearing Bottom Bracket for PF30 Framesets to 30mm Cranksets (for older specification spindles under 90mm 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