ACB518K Double Sealed Bicycle Headset Bearing 40x51.8x8mm, 36/45 Degree

ACB518K Sealed Bicycle Headset Bearing
✔️ Angular Contact - 36/45 Degree - 40mm x 51.8mm x 8mm

The ACB518K is a double-sealed angular contact bearing designed specifically for integrated bicycle headsets. With a 36/45 degree contact angle and precision-machined chrome steel construction, it provides smooth steering, long-lasting support, and protection from water, dirt, and grime. Sold as one bearing.

✅ Size: 40mm ID x 51.8mm OD x 8mm width
✅ Type: Angular contact headset bearing
✅ Contact angle: 36°/45° for proper headset alignment
✅ Closures: Rubber sealed on both sides (seal color may vary)
✅ Material: High-quality chrome steel
✅ Ideal for integrated and semi-integrated headsets
✅ Quantity: 1 bearing

💡 Why use 36/45 degree angular contact bearings in bike headsets?
Because they offer precise alignment, smooth steering, and durable sealing for outdoor riding

Supports both axial and radial forces from handlebars
Seals keep grease in and grit out
Fits many integrated headset designs
Reduces play and improves handling responsiveness

Ride smoother and steer sharper - upgrade to the ACB518K and keep your headset dialed in!