| Surface roughness | Rtmax | Ra |
| Sliding surface | ≤ 2.5 µm | 0.1-0.5 µm |
| Groove bottom | ≤ 6.3 µm | ≤ 1.6 µm |
| Groove side | ≤ 15 µm | ≤ 3 µm |
| Bearing area: 50-95% and 0.5 Rz cutting depth (based on Cref = 0%) | ||
| Recommended Size mm | Maximum gap mm | |||||
| D/H9 | d/h10 | L/+0.2 | Rmax | C | s* | |
| ＞ | ≤ | |||||
| 40 | D - 10 | 12.0 | 0.4 | 4.0 | 0.25 | |
| 40 | 75 | D - 15 | 18.2 | 0.4 | 5.0 | 0.37 |
| 75 | 150 | D - 20 | 23.2 | 0.4 | 6.0 | 0.50 |
| 150 | 200 | D - 25 | 28.8 | 0.4 | 8.5 | 0.62 |
| 200 | 300 | D - 30 | 35.7 | 0.4 | 10.0 | 0.75 |
| 300 | D - 40 | 43.2 | 0.4 | 13.0 | 1.00 | |
| The extrusion gap values shown in the table above apply to temperatures below 70 °C. Higher temperatures require lower extrusion gaps. | ||||||
| Operating parameters | ||||||
| Material | Temperature | Speed | Pressure | |||
| Support ring | Elastomer | Pressure ring | Minimum °C | Maximum °C | Maximum m/s | Maximum bar (MPa) |
|
|
 PU |
 XHPU XSPU |
-30 | +100 | 0.5 | 600(60) |
 HPU |
-20 | |||||
 SPU |
0.7 | |||||
 TPU |
-40 | |||||
| Ordering example | |
| Introduction | Piston seal TK1315-T |
| D x d x L [mm] | 100 x 80 x 23.8 |
| Sealing material | POM/HPU/XHPU |
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