Abstract
The application of greases NLGI 1 and 2 with different thickener types in gearboxes was studied. The efficiency and load- carrying capacity were determined using FZG back-to- back gear test rigs. Compared to the base oil, greases showed lower load-carrying capacity, less heat removal due to limited cooling of the gear by the grease compared to the base oil, and thus a limited range of operating conditions and a higher risk of wear and scuffing due to a lack of lubrication and heat removal. Conversely, less effort was expended for the housing sealing for greases. Grease lubrication showed greatly reduced no-load losses of the gearbox compared to oil lubrication, especially at high fillings and speeds.
| Original language | English |
|---|---|
| Pages | 18-22 |
| Number of pages | 5 |
| Volume | 78 |
| No | 1 |
| Specialist publication | NLGI Spokesman |
| State | Published - 2014 |