Technical specifications
| Standard | ISO 1206:2023 / ISO 3245:2023 |
|---|---|
| Standard edition | 2023 |
| Product family | 滚针轴承 NA-050 系列 |
| Product family ID | FAM-BRG-NRB-NA-050 |
| Bearing category | 滚针轴承 |
| Boundary designation | NA4911 |
| Bore d | 55 mm |
| Outside diameter D | 80 mm |
| Width / height B/T/H | 25 mm |
| Radial section | 12.5 mm |
| Rolling element | needle-roller |
| Rows | 1 |
| Ring design | with-inner-ring |
| Configuration options | ringDesign: drawn-cup, with-inner-ring, without-inner-ring; seal: open, RS, 2RS; clearance: CN, C3 |
| Boundary source | SKF Bearings and Mounted Products catalog (2024), PDF page 214 |
| Catalog version | 2026.08 |
| Selection status | Boundary dimensions verified; application approval required |
| 标准 | ISO 1206:2023 / ISO 3245:2023 |
| 轴承类型 | 滚针轴承 |
| 边界型号 | NA4911 |
| 内径 d | 55 mm |
| 外径 D | 80 mm |
| 宽度 B/T/H | 25 mm |
| 滚动体 | needle-roller |
| 列数 | 1 |
| 可派生配置 | ringDesign: drawn-cup, with-inner-ring, without-inner-ring; seal: open, RS, 2RS; clearance: CN, C3 |
| Lifecycle | Active |
| RoHS | Compliant |
| REACH | Compliant |
| Country of origin | Multiple |