2.4 Unit Names and Symbols
The following table lists the symbols, descriptions, and standard units for all physical quantities used in this catalog.
| Symbol | Description | Unit |
|---|---|---|
| a | Event probability | Factor |
| C | Dynamic load capacity (≙ C100) | N |
| C0 | Static load capacity | N |
| C100 | Dynamic load capacity at travel distance of 100,000 m | N |
| C50 | Dynamic load capacity at travel distance of 50,000 m | N |
| Ceff | Effective load capacity per rolling element | N |
| fK | Contact factor | Factor |
| H | Stroke | mm |
| K | Spacing between two carriages | mm |
| L | Length | mm |
| L | Nominal service life | m |
| L1 ... L2 ... | Partial lengths | mm |
| Lb | Carriage spacing | mm |
| Lh | Nominal service life (hours) | h |
| M | Longitudinal and transverse moment loads | Nm |
| Mds | Tightening torque | Ncm |
| ML | Permissible longitudinal and transverse moment loads | Nm |
| M0L | Permissible static longitudinal torque | Nm |
| M0Q | Permissible static transverse torque | Nm |
| MQ | Permissible transverse moment load | Nm |
| n | Stroke frequency | min-1 |
| P | Dynamic equivalent load | N |
| Q | Guide rail spacing | mm |
| vm | Average travel speed | m/min |
| Vvsp | Preload factor | Factor |