Unimec RA 250 Bevel Gearbox
Unimec RA 250 Bevel Gearbox
Código: RA 250
Marca: Unimec
Materials
| Material | Normative | Specification | Indications | |
|---|---|---|---|---|
| Hub shaft | C45 | EN 10083-2:2006 | Carbon steel | |
| Carter | GJL 250 | EN 1561:2011 | Grey cast iron | Completely machined on 6 faces |
| Bevel gears | 17NiCrMo 6-4 | EN 10084:2008 | Casehardening alloy steel | Ground bores and planes. Gleason gears run by pair. |
| Hollow shaft / Solid shaft | C45 | EN 10083-2:2006 | Carbon steel | |
| Lubricant | Unimec Atir SH150 | Synthetic oil | 3,1 lt |
General features
| Gear backlash | 15' - 20' |
|---|---|
| Forced lubrication speed | 800 rpm |
| Grease lubrication speed | 100 rpm |
| Operating temperature [°C] | -10 °C / 80 °C |
| Hollow shaft maximum moment | 3900 Nm |
| Maximum input speed | 1000 rpm |
| Main gearbox weight | 105 kg |
Specific features
| Nominal ratios | |||||
|---|---|---|---|---|---|
| 1/1 | 1/1,5 | 1/2 | 1/3 | 1/4 | |
| Phase between keys | +/- 6° | +/- 5,5° | +/- 6° | +/- 5° | +/- 4,5° |
| Inertia moment | 91500 kg-mm2 | 32800 kg-mm2 | 17700 kg-mm2 | 8670 kg-mm2 | 5830 kg-mm2 |
Power curves
The magenta zone indicates a potential heating risk. Working cycles must be carefully analized.
S = Rotational speed of the fast/slow shaft [rpm]
CL = Slow shaft torque [Nm]
P = requested input power [kW]
Max admissible loads
Admissible loads
S = Fast shaft rotational speed [rpm]
RL = Admissible radial load [kN]
AL = Admissible axial load [kN]
HS = Hub shaft
RHS = reinforced hub shaft
PS = Solid protruding shaft
Unimec Datasheets
| País e idioma | Nome do arquivo | Link de download |
 United States (English) |
Unimec-EN_59050.pdf | Download |
 Deutschland (Deutsch) |
Unimec-DE_13807.pdf | Download |
 Italy (Italiano) |
Unimec-IT_75906.pdf | Download |
 中国（简体 |
Unimec-CN_95426.pdf | Download |
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