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 55x9 (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

1 kg

Operating temperature [°C]

-10 °C / 80 °C

Static load (traction or compression)

150 kN

Dynamic load (traction or compression)

100 kN

Maximum input speed

1800 rpm

Main gearbox weight

34 kg

Trapezoidal screw weight

18 kg/m

Anti-rotation torque at maximum load

446 Nm

Maximum admissible static lateral loads

1 kN

Center-to-center diameter

70 mm

Maximum radial load on worm

600 N

Standard working conditions

25 °C - servizio 10%

1/5

1/10

1/30

Real ratio

1/5

1/10

1/30

Translation per worm revolution

1,8 mm

0,9 mm

0,3 mm

Efficiency

25 %

22 %

17 %

Start-up efficiency

18 %

15 %

12 %

Maximum linear speed

2700

1620

540

Torque at maximum load

115 Nm

65 Nm

28 Nm

Worm screw maximum torque

490 Nm

128 Nm

154 Nm

Idle torque

2,2 Nm

1,7 Nm

1 Nm