90% fill Kluber NBU52 grease only runs better and smoother with time and is highly resistant to being washed out
A radial bearing generally used as a hub bearing for some older quick-release hub designs but has also been used for-bike motors and and indoor trainers
Though stainless steel may have about 20% less load capacity and is slightly softer than our standard 52100 chromium steel used in most of our bearings
Inner Race Width - 19
CO 6808 VV - Enduro Zero, Black-Oxide, Ceramic Hybrid, ABEC-5, Radial Bearing (C3 Clearance) - 40mm x 52mm x 7mm sale 90% fill Kluber NBU52 greaseCO 6808 VV Enduro Zero, Black Oxide, Ceramic Hybrid, ABEC 5, radial bearing (C3 clearance) 40mm x 52mm x 7mm Enduro Zero, Ceramic Hybrid, ABEC 5, radial bearing featuring black oxide treated 52100 High Carbon chromium alloy races paired with Grade 5 Silicon Nitride Ceramic balls with 90% fill, high pressure, water proof grease. Si3N4 ceramic balls reduce bearing wear and increase bearing life by eliminating steel on steel contact within the bearing.