This Fox spherical bearing with a 0.625-inch (5/8") bore, MPN 001-00-006-A, is a pivoting eyelet bearing for the mounting end of a Fox shock. Forum discussions credit this ball-in-race design with decoupling the shock from frame flex, which reduces friction on the internal seals. Owners on user forums also note that eyelet bearings mainly reduce rotational friction and do little against side loads, so buy one for a smoother stroke rather than to solve chassis-geometry problems. Shock eyelets vary in size, so the fit depends on the specific shock. Confirm your application with the manufacturer before ordering.
Searchers looking for a Fox 5/8 bore eyelet bearing, a -10 size spherical for a Fox shock rebuild, or a Fox eyelet bearing replacement for clicking or play in the shock mount will find this part under its manufacturer number. Forum riders say that a removal and re-grease of the eyelet seems to cure clicking on some Fox bearing setups, so inspect the eyelet before replacing hardware. Use this bearing on a rebuild where the old joint has play, and check the bore and outer race against the eyelet before pressing it in.
User forums report that a bearing can be pressed tight into the eyelet, and one owner noted that pressing old bushings out without a fixture to hold the shock can be very difficult.
Owners on user forums describe clicking that comes from the bearing cup shifting inside the eyelet. Checking the eyelet fit and re-greasing it is the usual first step.
Plan on a moderate, shop-style job. User forum posts describe removing the wire C-clip retainer on one side of the bearing first, which can be hard to pull; one owner filed a small groove in the outer edge of the eyelet to pry the clip up. Expect the press fit to be tight, and use a fixture to hold the shock steady while pressing the bearing in or out. Check the eyelet for damage, and confirm the bore before you start.
