Key features
- High-precision 1 1/8" headset bearing
- 45/45° angle for standard fit
- Compact 39 mm outer diameter design
- 2RS seals for water and dust protection
- Smooth rotation and long lifespan
Description
The CCY-1004 (HB-B4) bearing is designed for 1 1/8" headset systems and is ideal for applications requiring a 39 mm outer diameter.
Its precise dimensions (30.15 x 39 x 6.5 mm) and 45/45° contact angle ensure proper fit and stable steering performance.
Made from high-quality steel with precision-ground raceways and premium lubrication, it delivers smooth operation and long-lasting durability.
Specifications
- Type: headset bearing
- Standard: 1 1/8"
- Dimensions: 30.15 x 39 x 6.5 mm
- Angle: 45° / 45°
- Seals: 2RS (double sealed)
- Material: high-strength steel
- Bearing grade: ABEC 5
- Lubrication: premium grease
Compatibility
- Compatible with 1 1/8" headset systems
- For frames with 39 mm bearing seat
- Suitable for integrated and semi-integrated headsets
- Cross references: MH-P04, TH-870G
- Ideal replacement bearing
