Code: TP 16016
Marke: Unimec
Materials
| |
Material |
Normative |
Specification |
Indications |
| Worm |
16NiCr4 |
EN 10084:2008 |
Casehardening alloy steel |
Casehardened and ground on teeth and holds |
| Worn wheel |
CuAl10Fe2-GZ |
EN 1982:2008 |
Alluminium bronze |
Centrifuged |
| Threaded spindle |
C45 |
EN 10083-2:2006 |
Carbon steel |
Tr 160x16 (ISO 2901:2016) - Rolled or machined |
| Carter |
S235 J0 |
EN 10025-2:2005 |
Welded carbon steel |
Completely machined on 6 faces |
| Lubricant |
Unimec Mark CA |
|
Calcium based grease |
14 kg |
General features
| Operating temperature [°C] |
-10 °C / 80 °C |
| Static load (traction or compression) |
1500 kN |
| Dynamic load (traction or compression) |
1000 kN |
| Maximum input speed |
1800 rpm |
| Main gearbox weight |
550 kg |
| Trapezoidal screw weight |
140 kg/m |
| Anti-rotation torque at maximum load |
11700 Nm |
| Maximum admissible static lateral loads |
25 kN |
| Center-to-center diameter |
200 mm |
| Maximum radial load on worm |
3 kN |
| Standard working conditions |
25 °C - servizio 10% |
Specific features
| |
Nominal ratios |
| |
1/12 |
1/36 |
| Real ratio |
1/12 |
1/36 |
| Translation per worm revolution |
1,33 mm |
0,44 mm |
| Efficiency |
15 % |
9 % |
| Start-up efficiency |
9 % |
5 % |
| Maximum linear speed |
1000 |
600 |
| Torque at maximum load |
1400 Nm |
790 Nm |
| Worm screw maximum torque |
8200 Nm |
9800 Nm |
| Idle torque |
7,2 Nm |
5 Nm |
Euler's law (safety factor =2; dynamic compression load)
Limit Load 1 (red) - 2 (blue) - 3 (green)
C = Load [kN]
L = Overall trapezoidal screw length [mm]
Power curves
The magenta zone indicates a potential heating risk. Working cycles must be carefully analized.
VR = Worm rotational speed [rpm]
VL = Spindle translation speed [mm/min]
P = Requested input power [kW]
Construction forms
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