61900 LLB C3 - ABEC-5 Radial Bearing (C3 Clearance) - 10mm x 22mm x 6mm 428420 and can be used as

and can be used as a pivot bearing

Grade 5 balls meet or exceed 5/1

and 45° crown race

CO 699 VV - Enduro Zero

This pulley wheel set fits the following derailleurs:

61900 LLB C3 - ABEC-5 Radial Bearing (C3 Clearance) - 10mm x 22mm x 6mm 428420 and can be used as61900 LLB C3 ABEC 5 Radial Bearing (C3 Clearance) 10mm x 22mm x 6mm A radial bearing generally used as a hub bearing for some quick release hub designs and can be used as a pivot bearing though the MAX type version of this bearing is better suited for suspension use. This ABEC 5 bearing features deep groove design races, with Grade 10 balls, LLB seals and 90% fill with high pressure water proof grease to withstand daily abuse of use and the elements.