Codice: TPR 14014
Marchio: 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 |
Nut |
CuAl10Fe2-GZ |
EN 1982:2008 |
Alluminium bronze |
Centrifuged |
Threaded spindle |
C45 |
EN 10083-2:2006 |
Carbon steel |
Tr 140x14 (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) |
1200 kN |
Dynamic load (traction or compression) |
800 kN |
Maximum input speed |
1800 rpm |
Main gearbox weight |
550 kg |
Trapezoidal screw weight |
110 kg/m |
Anti-rotation torque at maximum load |
8100 Nm |
Maximum admissible static lateral loads |
20 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 |
1,16 mm |
0,38 mm |
Efficiency |
16 % |
10 % |
Start-up efficiency |
10 % |
6 % |
Maximum linear speed |
1200 |
600 |
Torque at maximum load |
930 Nm |
500 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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