Filtration & Air Quality
Filtration and air quality is extremely important with externally pressurized gas bearings require clean and dry air to maximize the load bearing capacity. Here you will see some typical filter and dryer assemblies that are used to provide this clean and dry air to the bearings. Below is a chart showing filter classes and recommended specifications for different particles.
| Quality Class | DIRT (Particle Size in Micron) |
WATER Pressure Dew Point ° F @ 100 PSIG |
OIL (including vapor mg/m³) |
|
|---|---|---|---|---|
| 1 | 0.1 | – 94 | 0.01 | |
| 2 | 1 | – 40 | 0.1 | |
| Recommended | 3 | 5 | – 4 | 1.0 |
| Minimum Specs | 4 | 15 | + 37 | 5 |
| 5 | 40 | + 45 | 25 | |
| 6 | – | + 50 | – |
