1-1/2" Double Sealed Bicycle Headset Bearing- 40x52x7mm, 45/45

1-1/2 inch bicycle headset bearing 40mm x 52mm x 7mm with 45/45 angle
✔️ Angular contact headset bearing with double rubber seals

This single-pack 1-1/2 inch headset bearing is a handy angular contact unit built for modern bicycle steering systems, giving smooth rotation and solid stability under cornering loads. It fits many integrated and semi-integrated headsets that use a 45/45 contact angle.

✅ Metric size: 40mm ID x 52mm OD x 7mm width
✅ 45/45 angular contact design for smooth steering
✅ Double rubber seals to keep out dirt and moisture
✅ Chrome steel GCR15 construction for durability
✅ Used in bicycle headsets and steering assemblies
✅ Pack size: 1 bearing

Dimensions Table
ID: 40mm
OD: 52mm
Width: 7mm
Angle: 45/45

💡 How does a 45/45 angular contact headset bearing improve steering stability?
The matching 45-degree contact angles help manage both radial and axial forces in bicycle steering systems.
- Keeps steering smooth under braking and corner loads
- Reduces play by distributing force evenly across the raceways
- Helps maintain tight alignment in integrated headsets
- Supports long-term durability in rough riding conditions

A solid pick when you want your front end to feel tight, smooth, and ready for the next ride.