black-oxide treated chromium steel and 440C stainless steel
angle differences from your original equipment will not affect functionality as long as all included components are used together as a set
Bearing Bottom Bracket for T47 Framesets and Shimano 24mm Cranksets
Radial Bearing (CN Clearance) - 15mm x 26mm x 7mm
Double Row Suspension Bearing - 10mm x 17mm x 6/7mm -
CH 71903 LLB - Ceramic-Hybrid, ABEC-5, Angular-Contact Bearing (C3 Clearance) - 17mm x 30mm x 7mm sale black-oxide treated chromium steel andCH 71903 LLB Ceramic Hybrid, ABEC 5, Angular Contact Bearing (C3 clearance) 17mm x 30mm x 7mm This ABEC 5, Ceramic hybrid bearing features deep groove design 52100 High Carbon Chromium alloy races, with Grade 5 Silicon Nitride Ceramic balls, dual lip labyrinth (LLB) seals to withstand the outside elements, and to contain the 90% fill Mobilux NGLI 2 high pressure water proof synthetic grease. Si3N4 Ceramic balls reduce bearing wear and increase bearing