| Surface roughness | TPU | PTFE | ||
| Rtmax | Ra | Rtmax | Ra | |
| Sliding surface | ≤ 2.5 µm | 0.05–0.3 µm | ≤ 2 µm | 0.05 - 0.2 µm |
| Groove bottom | ≤ 6.3 µm | ≤ 1.6 µm | ≤ 6.3 µm | ≤ 1.6 µm |
| Groove side | ≤ 15 µm | ≤ 3 µm | ≤ 15 µm | ≤ 3 µm |
| Bearing area: 50-95% and 0.5 Rz cutting depth (based on Cref = 0%) | ||||
| Recommended size mm | |||||||||
| d/f8 | D/H9 | H | L/+0.2 | L1/-0.1 | D1/H10 | Rmax | d1 | d2 | |
| ≥ | ＜ | ||||||||
| 100 | 230 | d + 22.2 | 13.5 | 6.3 | 4.2 | d + 10.7 | 1.2 | 5.33 | 3.53 |
| 230 | 300 | d + 24.2 | 13.5 | 6.3 | 4.2 | d + 10.7 | 1.2 | 5.33 | 3.53 |
| 300 | 630 | d + 33 | 18.4 | 8.1 | 6.3 | d + 15.1 | 1.2 | 6.99 | 5.33 |
| 630 | d + 36.5 | 19.8 | 9.5 | 6.3 | d + 15.1 | 2 | 8.4 | 5.33 | |
| Operating parameters | ||||
| Material | Temperature | Speed | ||
| Sealing components | Elastomer | Minimum °C | Maximum °C | Maximum m/s |
 XHPU |
NBR70 | -30 | +100 | 5 |
 XSPU |
-20 | |||
 PTFE v |
-30 | 10 | ||
 PTFE g |
||||
 PTFE b |
FPM75 | -20 | +200 | |
 PTFE c |
||||
 UHMWPE |
NBR70 | -30 | +90 | |
| MVQ70 | -55 | |||
| Ordering example | |
| Introduction | Dust Seal TA50 - F |
| d x D x L [mm] | 300 x 333 x 18.4 |
| Sealing material | PTFE b / NBR70 |
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