1-3/8" inch Bicycle Headset Bearing- 37x49x7mm - 45/45 Sealed
UPC: 00193019146743
1-3/8" Bicycle Headset Bearing - 45/45 Angle
✔️ 37x49x7mm - Double Sealed Angular Contact
This 1-3/8" headset bearing is an angular contact type with a 45/45-degree contact angle, ideal for bicycle steering systems that require precise alignment and smooth response. Made from durable chrome steel and sealed on both sides, it keeps out dirt and moisture for long-lasting, low-maintenance performance.
✅ Size: 37mm ID x 49mm OD x 7mm width
✅ Contact angle: 45°/45° for angular load support
✅ Material: Chrome steel for durability
✅ Closures: Double rubber seals (color may vary)
✅ Style: Angular contact ball bearing
✅ Quantity: One bearing
Dimension Table (mm):
| Inner Diameter | Outer Diameter | Width | Contact Angle |
|---|---|---|---|
| 37mm | 49mm | 7mm | 45°/45° |
💡 Why use a 45/45 headset bearing in bike steering systems?
It delivers tight cornering control and smooth headset action.
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Angular contact supports combined radial and axial loads
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Seals block out water, road grime, and grease loss
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Great fit for high-performance or replacement headsets
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Chrome steel ensures strength under pressure and movement
Ready to smooth out your steering? Toss one of these in and ride like you're on rails.