Kinetic ACB 518K Headset Bearing

From Kinetic:

• Inner x Outer x Depth (mm): 40 x 51.8 x 8
• Inch Dia: 1-1/2”
• Angle / Chamfer (Deg): 36 / 45
• Bearing ID: 40.00mm
• Bearing OD: 51.8mm
• Bearing Thickness: 8.0mm
• Internal Angle: 36 Degrees
• External Angle: 45 Degrees
• Material: Bearing Steel
• Grease: Mobil XHP-222 or SINOPEC HTHS Bearing Grease
• Seal: Double-sealed 2RS
• Material: Chrome Steel 100Cr6 (Race & Balls)
• Cage Material: Nylon PA66
• Equivalent Part Ref: MR110, MR127, TH-073 & TK518B