Universal Uniballs 12mm bore Snap Ring, Uniball and Cup 1 Pack Kit Includes: One uniball cup (machined tubular bushing), one uniball bearing (spherical plain bearing), and one snap ring Uniball Bore: 12mm bore Cup OD: 36.0mm Cup ID: 30.0mm Cup Height: 24.16mm Cup Material: 4130 Chrome Moly Other Common Names: Weldable monoball, spherical plain bearings, com bearing Applications: Spherical Plain Bearings are used as sway bar end links, linkage ends and control arms. The Uniball/spherical plain bearing housing is plated, so instead of being welded to a connecting bar or connecting tube, the spherical plain bearings are held within a control arm housing or tubular bushing with snap rings. A ball stud or mounting stud is normally assembled thru or staked into the i.d. of the ball. Steinjager also offers a full line of Spherical Rod Ends, Hex Bar Turnbuckles, Jam Nuts, Lock Nuts, Bolts, Washers, Rod End Retaining Washers, Universal Adjustable Sway Bar End Links, Control Arms, Pan hard (Panhard) Bars. Push Pull Cables and other application specific parts to suit you street, track and off-road needs.