Codice: TP 8010
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-GM |
EN 1982:2008 |
Alluminium bronze |
Chill molded |
Threaded spindle |
C45 |
EN 10083-2:2006 |
Carbon steel |
Tr 80x10 (ISO 2901:2016) - Rolled or machined |
Carter |
GJL 250 |
EN 1561:2011 |
Grey cast iron |
Completely machined on 6 faces |
Lubricant |
Unimec Mark CA |
|
Calcium based grease |
2 kg |
General features
Static load (traction or compression) |
350 kN |
Dynamic load (traction or compression) |
250 kN |
Maximum input speed |
1800 rpm |
Main gearbox weight |
62 kg |
Trapezoidal screw weight |
37 kg/m |
Anti-rotation torque at maximum load |
1530 Nm |
Maximum admissible static lateral loads |
4 kN |
Center-to-center diameter |
90 mm |
Maximum radial load on worm |
900 N |
Standard working conditions |
25 °C - servizio 10% |
Specific features
|
Nominal ratios |
|
1/5 |
1/10 |
1/30 |
Real ratio |
1/5,2 |
1/9,67 |
1/30 |
Translation per worm revolution |
1,92 mm |
1,03 mm |
0,33 mm |
Efficiency |
22 % |
20 % |
14 % |
Start-up efficiency |
14 % |
13 % |
9 % |
Maximum linear speed |
2000 |
1500 |
600 |
Torque at maximum load |
360 Nm |
200 Nm |
95 Nm |
Worm screw maximum torque |
850 Nm |
850 Nm |
490 Nm |
Idle torque |
3,5 Nm |
2,7 Nm |
1,95 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]
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