Double Sealed Bicycle Headset Bearing 37x46.9x7mm, 45/45 DegreeD MP137 Double Sealed Bicycle Headset Bearing 45 45 Degree 37mm x 46. 9mmx 7mm VXB Bearing Double Sealed Bicycle Headset Bearing 37x46. 9x7mm, 45 45 Degree MP137 Angular Contact Ball Bearing Material: Chrome Steel Closures: Rubber Seals (Seals color maybe different than the picture) Angle: 45 45 Degree Dimensions: 37mm x 46. 9mm x 7mm ID (inner diameter) Bore: 37mm OD (outer diameter): 46. 9mm Width: 7mm Brand: VXB Bearing Quantity: 1 Bearing