TP-00559 BScrew Jack

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 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%

	Nominal ratios
	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