Material

Normative

Specification

Indications

Worm

16NiCr4

EN 10084:2008

Casehardening alloy steel

Casehardened and ground on teeth and holds

Threaded spindle

C45

EN 10083-2:2006

Carbon steel

Tr 20x4 (ISO 2901:2016) - Rolled or machined

Carter

Technopolymer

Polyarylamide

Made by 2 half-shell

Nut

Technopolymer

Polyarylamide

Glass fiber reinforced

Worn wheel

Technopolymer

Polyarylamide

Glass fiber reinforced

Operating temperature [°C]

-20 °C / 50 °C

Static load (traction or compression)

12 kN

Dynamic load (traction or compression)

7 kN

Maximum input speed

1800 rpm

Main gearbox weight

1 kg

Trapezoidal screw weight

2,22 kg/m

Anti-rotation torque at maximum load

17 Nm

Maximum admissible static lateral loads

0 N

Center-to-center diameter

30 mm

Maximum radial load on worm

220 N

Standard working conditions

25 °C - servizio 10%

1/5

1/10

1/30

Real ratio

1/4,75

1/10,5

1/30

Translation per worm revolution

0,842 mm

0,38 mm

0,13 mm

Efficiency

31 %

28 %

20 %

Start-up efficiency

22 %

19 %

14 %

Maximum linear speed

1440

720

240

Torque at maximum load

4,2 Nm

2,3 Nm

1,1 Nm

Worm screw maximum torque

54 Nm

54 Nm

42 Nm

Idle torque

0,25 Nm

0,2 Nm

0,15 Nm