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

Nut

CuAl10Fe2-GM

EN 1982:2008

Alluminium bronze

Chill molded

Threaded spindle

C45

EN 10083-2:2006

Carbon steel

Tr 70x10 (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

Operating temperature [°C]

-10 °C / 80 °C

Static load (traction or compression)

280 kN

Dynamic load (traction or compression)

200 kN

Maximum input speed

1800 rpm

Main gearbox weight

56 kg

Trapezoidal screw weight

28 kg/m

Anti-rotation torque at maximum load

1100 Nm

Maximum admissible static lateral loads

3 kN

Center-to-center diameter

90 mm

Maximum radial load on worm

900 N

Standard working conditions

25 °C - servizio 10%

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

23 %

21 %

14 %

Start-up efficiency

15 %

14 %

9 %

Maximum linear speed

3600

1800

600

Torque at maximum load

280 Nm

150 Nm

75 Nm

Worm screw maximum torque

850 Nm

850 Nm

490 Nm

Idle torque

3,5 Nm

2,7 Nm

1,95 Nm