Headset Bearing
Bearing Steel bicycle Headset Bearing - Bearings
Bearing Steel Headset Bearing. Built for OEM bicycle assembly with traceable material and consistent quality.
01 Dimensions & Tolerances
Core dimensions are controlled for repeatable bicycle frame assembly. Custom dimensions, tolerances, and surface finish can be supplied from drawing.
| Parameter | Specification |
|---|---|
| Tolerance Grade | ABEC-5 (ISO 492) |
02 Material & Performance
Material selection is optimized for the target bicycle application with verified mechanical properties and corrosion resistance.
| Parameter | Specification |
|---|---|
| Primary Material | GCr15 bearing steel (AISI 52100) |
| Material Grade / Class | - (bearing-grade steel) |
| Applicable Standards | ISO 6288 / ASTM A295 |
| Tensile Strength | 1900 MPa (after heat treatment) |
| Yield Strength | 1600 MPa |
| Hardness | HRC 61-65 |
| Density | 7.81 g/cm³ |
| Process | bearing-specific process |
| Surface Finish | natural finish |
03 Application & Compatibility
Designed for bicycle OEMs, assembly factories, and component brands that need repeatable supply with documented QC.
| Parameter | Specification |
|---|---|
| Frame Type | road bike, project-specific frame, folding bike |
| Typical Position | head-tube headset (upper and lower bearings) |
| Accessory / Mating Part | front fork steerer and headset interface |
| Environment | indoor and outdoor use |
| Compatible Standards | ISO 6288 |
| Load Rating | drawing-specific requirement |
| Recommended Torque | - (press-fit installation) |
| Installation Method | press-fit type (headset press tool) |
| Recommended Tool | headset press tool |
| Installation Position | upper and lower headset positions on head tube |
Installation Steps
04 Quality Assurance
Each production batch can be supplied with traceability records, inspection data, and packaging labels for OEM receiving control. SGS/TUV third-party test reports available on request.
| Test / Inspection | Standard & Criteria |
|---|---|
| Salt Spray Test | 24 hours, bearing steel requires anti-rust oil |
| Torque Verification | none |
| Hardness Testing | ASTM E18 Rockwell HRC |
| Thread Inspection | not applicable |
| Dimensional Inspection | 100% inspection |
05 Packaging & Ordering
Standard bulk packaging is available for assembly lines. Custom labels, kitting, and retail packaging can be prepared for brand programs.
| Parameter | Specification |
|---|---|
| Standard Pack | 500 pcs/bag |
| Packaging Material | PE resealable bag + corrugated carton |
| Industry Batch Reference | 1,000 pcs/specification for standard parts / 500 pcs/specification for other items |
| Batch Pricing Model | tiered volume pricing with no mandatory MOQ |
| Required Quote Data | Size, material, finish, quantity, drawing if custom |
Send your drawing, sample, or BOM and our team will confirm material, thread fit, finish, packaging, and lead time.
Technical Inquiry
Send drawings or STEP files. Engineering response within 24 hours.
Send DrawingRequest Quotation
Specify quantity, material, finish, and packaging. Quotes in 24 hours.
Get QuoteTrial Order
Start with a small batch to validate fit, finish, and assembly workflow.
Order Samples