| Symbol | ZL*Zv*ZR |
|---|---|
| Unit | - |
| Attribute-ID | din3991 product Z_L Z_v Z_R |
| Numeric ID | 395 |
| Value Type | PMDouble |
The product describes the influence of the lubricant viscosity, sliding speed, and the flank roughness on the formation of the lubricating film and its effect on the flank load carrying capacity.
| ZL | Lubricant factor |
| Zv | Velocity factor: Considers the influence of the circumferential speed on the flank load carrying capacity |
| ZR | Roughness factor: Considers the influence of the quality of the flank surface on the pitting resistance |
If no value is specified, the product is calculated within the program.