CH 71903 LLB - Ceramic-Hybrid, ABEC-5, Angular-Contact Bearing (C3 Clearance) - 17mm x 30mm x 7mm sale black-oxide treated chromium steel and

black-oxide treated chromium steel and 440C stainless steel

5mm upper and 11

Machined Delrin Derailleur Pulleys for 11 speed SRAM Derailleurs (4mm bolt upper/5mm bolt lower)

Radial Bearing (CN Clearance) - 15mm x 26mm x 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