SF-2Y product description
SF-2Y Carbon steel-based boundary lead-free self-lubricating bearings, this product has the same structure and performance as SF-2, can be used for a long time without oiling under boundary lubrication conditions, and there is an oil storage pit on the surface of the wear-resistant layer.
| code |
SF-2Y |
|
| Material | Carbon Steel+Copper Powder+(POM+Pb) | |
| maximum bearing pressure | static load N/mm2 | 140 |
| dynamic load N/mm2 | 70 | |
| Maximum linear speed m/s | Grease lubrication | 2.5 |
| Maximum PV value N/mm2 · m/s | 2.8 | |
| friction coefficient u | 0.06~0.12 | |
| Matching shaft diameter | Hardness HB | >270 |
| Roughness Ra | 0.4~1.25 | |
| Max temperature °C | -60~+120 | |
| Thermal Conductivity W/mk | 52 | |
| Linear expansion coefficient (axial) | 11✕10-6 /k | |
Main application areas
At present, the product has been used in metallurgical machinery, mining machinery, water conservancy machinery, automobiles, construction machinery, agricultural machinery, steel rolling industries, etc.
Tolerance dimension table
SF-2碳钢基边界自润滑轴承