Product Overview：
Bearing steel pipe is a type of seamless steel pipe used for manufacturing ordinary rolling bearing rings. The outer diameter of the steel pipe is 25-180mm, and the wall thickness is 3.5-20mm, divided into two types: ordinary precision and higher precision. Bearing steel is the steel used to manufacture ball bearings, rollers, and bearing rings. Bearings are subjected to tremendous pressure and friction during operation, requiring bearing steel to have high and uniform hardness, wear resistance, and high elastic limit. The requirements for the uniformity of the chemical composition of bearing steel, the content and distribution of non-metallic inclusions, and the distribution of carbides are very strict, making it one of the most demanding steel grades in steel production.
| Product List |
| Product Name: | Gcr15 seamless steel pipe for bearings | Bearing steel pipe |
| Product Name: | Precision bearing steel pipe | Seamless steel pip |
| Product Name: | Cold rolled annealed bearing steel pipe | Seamless steel pipe |
| Product Name: | Cold drawn bearing steel pipe | Seamless steel pipe |
| Product Name: | National standard bearing steel pipe | seamless steel pipe |
| Product Name: | Non standard bearing steel pipe | Seamless steel pipe |
| Parameter range |
| Outer diameter | Φ6mm‑Φ219mm |
| Wall thickness | 0.5mm‑20mm |
| Standard length | 1‑12m， Customizable short and extended non ruler |
| Outer diameter accuracy | Maximum ± 0.03mm |
| Executive Standards | ASTM A295, DIN 17230, JIS G 4805, YB/T 4146 |
| Non-standard customization | Special wall thickness, precision grinding of inner holes, precise tolerances, and specialized deep processing for bearings can all be customized |
| Common spot specification table |
| Outer diameter (mm) | 25
| 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 |
| Common wall thickness (mm) | 4、5、6 | 4、5、6、7 | 4、5、6、7、8 | 4、5、6、7、8、10 | 5、6、7、8、10、12 | 5、6、7、8、10、12 | 5、6、8、10、12、14 | 6、7、8、10、12、14 | 6、8、10、12、14、16 |
| Outer diameter (mm) | 70
| 75 | 80 | 85 | 90 | 95 | 100 | 110 | 120 |
| Common wall thickness (mm) | 6、8、10、12、14、16 | 7、8、10、12、15、18 | 8、10、12、14、16、20 | 8、10、12、14、16、20 | 8、10、12、15、18、22 | 10、12、14、16、20、25 | 10、12、15、18、20、25 | 10、12、15、18、22、28 | 12、15、18、20、25、30 |
Optional tolerance range |
| Tolerance control | Optional manufacturing process |
| Tolerance ≤ 0.05 mm | Cold rolling |
| Tolerance ≤ 0.10 mm | Cold rolling |
| Tolerance ≤ 0.30 mm | Cold drawing | Cold rolling |
| Tolerance ≤ 0.50 mm | Cold drawing | Hot rolling |
| Tolerance ≤ 1.00 mm | Hot rolling | Hot expanding |
| Hot rolled bearing tube tolerance (ring blank) |
| Outer Diameter (mm) | Outer diameter deviation (mm) | Wall thickness deviation |
| ≤80 | ±0.35 | +12%S /‑10%S |
| 80‑100 | ±0.50 | +12%S /‑10%S |
| ＞100 | ±0.5%×D | +12%S /‑10%S |
| Cold drawn/cold-rolled precision bearing tube tolerance |
| Outer Diameter (mm) | Outer diameter deviation (mm) | Wall thickness deviation |
| ≤63 | ±0.10 | +10%S /‑8%S |
| 63‑120 | ±0.20 | +10%S /‑8%S |
| Geometric tolerance |
| Project | Indicators |
| Ellipticity | ≤ 50% of outer diameter tolerance |
| Straightness | ≤ 1.0 mm/m |
Optional delivery status
|
| Oil removal from oil pipes | Annealing and straightening | Steel pipe corrosion prevention |
| Steel pipe threading | Length cut-to-length | Steel pipe coating |
| Steel pipe cap | Exquisite bundling | Beveling |
Now ready to place an order:
You can view Ordering Matters | Payment Matters, or enter Submit Purchase | Contact Us
Jia hui
Jia hui