Fluid dynamic bearing (FDB) is a unique bearing type especially designed for computers, coummunications and consumer electronics industry. It is commonly used in cooling fans for servers and PCs.
In comparison with ball bearings and sleeve bearings used in the past, FDB has the advantage of lower noise and steadier performance while operation.
Together with the grease selected by TPI, our product achieved better lifetime and vibration resistance over the years.
Oil for FDBs not only requires good performance in lubrication but also requires to provide sufficient and stable dynamic pressure under rotation. Cooperation with the best oil manufacturers in the world allows TPI to suggest and apply the best lubricating solutions for customers.
FDB's life expectation is based on the result of high temperature and high humidity test (temperature 80℃, humidity 65%). L10 life factor can then be calculated according to the test data. The environmental temperature of general product manufacturing, which is 60℃ , can then be calculated approximately 100,000hrs.
The designation indicates the form, size, precision, internal structure, etc. of the bearing, and it's shown as below:
| Direction of rotation | F | CCW |
| H | CW | |
| Bore dimension | 15 | 1.5mm |
| 20 | 2.0mm | |
| 30 | 3.0mm | |
| Outer diameter dimension | 040 | 4.0mm |
| 080 | 8.0mm | |
| Height dimension | 016 - 105 | 1.6mm - 10.5mm |
| Special requirement | N | Available to rotate in both directions |
| Oil code | LT43 | |
| LT44 |
