The operating factor fb is determined via the application case, operating time and starts per hour. Three application cases are distinguished. The operating factor is determined for 8 h/d, 16 h/d or 24 h/d operating time. The switching frequency per hour is specified via the starts per hour.
Which application cases are distinguished when designing a ZIMM bevel gearbox of the ZK Series?
| Application case | Characteristic value | Operating characteristic | Examples |
| Application case I | ka ≤ 0,25 | Smooth, shock-free operation; low accelerations | Filling machines, elevators, light-duty, screw conveyors, light-duty, fans, lifting platforms, mixers, light-duty, roller grilles, conveyor belts, light-duty, packaging machines, workpiece drives, centrifuges |
| Application case II | ka ≤ 3,0 | Irregular, shock-loaded operation; medium accelerations | Rotary table drives, elevators, heavy-duty, reels, kneading machines, mixers, heavy-duty, mills, agitators, light-duty, gate drives, conveyor belts, heavy-duty, packaging machines, winches |
| Application case III | ka ≤ 10,0 | Highly irregular operation, heavy shocks, high accelerations, alternating load | Crushers, calenders, press brakes, piston pumps, presses, agitators, heavy-duty, vibrators, shears, punching machines, rolling mills, cement mills |
How is the operating factor for a ZIMM bevel gearbox of the ZK Series derived from application case, operating time and starts per hour?
The operating factor fb is determined via application case, operating time and switching frequency.
- Select the appropriate application case.
- Select the diagram according to the duty factor.
- Enter the switching frequency per hour on the x-axis.
- Read off the operating factor fb.
For determining the operating factor, the operating time is set at 8 h/d, 16 h/d or 24 h/d.
