ACB518K (MR127 TH-073E) 40.0 x 51.8 x 8 36 / 45 1 1/2'' HEADSET BEARING
Also know as ACB518K, MR110, MR127, TH-073E MR110, ACB518K, TK518B. 1 x 1.5" Lower Bearing (TH073) for an FSA Orbit (No.57) Headset plus many other headsets. ZS56 BOTTOM HEADSET BEARING. Compatible with the FSA No.57 headset.