A301 piston seals
A301 piston seals are produced by machining technique from a special compound of bronze-filled PTFE, combined with an O-ring used as an energizing ring. A301 can be used safely at high sliding speeds due to its low friction force, which is among one of the essential properties of PTFE. By changing the O-ring material, A301 can be used for type of oils different from mineral-base hydraulic oils.
| TECHNICAL DATA | |
| Working pressure | 400 Bar |
| Working temperature | -30/+105°C |
| Sliding speed | 5 m/s |
| Material | PTFE + Bronze / NBR70 |
| Media | Mineral base hydraulic oils |
| Surface Roughness | ||
| Ra | Rmax | |
| Dynamic surface | ≤0.2 μm | ≤2.0 μm |
| Groove base | ≤1.6 μm | ≤6.3 μm |
| Groove flanks | ≤3.2 μm | ≤15.0 μm |
| Permissible Gap (max.) | |||
| Housing length(B) | Pressure (Bar) | ||
| 150 | 250 | 400 | |
| 2.2 | 0.30 | 0.20 | 0.15 |
| 3.2 | 0.40 | 0.25 | 0.15 |
| 4.2 | 0.40 | 0.25 | 0.20 |
| 6.3 | 0.50 | 0.30 | 0.20 |
| 8.1 | 0.60 | 0.35 | 0.25 |
| 9,5 | 0.70 | 0.50 | 0.30 |
