Bevel Gearboxes

Size 250

Model RS

Materials

	Material	Normative	Specification	Indications
Hub shaft	C45	EN 10083-2:2006	Carbon steel
Carter	GJL 250	EN 1561:2011	Grey cast iron	Completely machined on 6 faces
Bevel gears	17NiCrMo 6-4	EN 10084:2008	Casehardening alloy steel	Ground bores and planes. Gleason gears run by pair.
Protruding shaft	C45	EN 10083-2:2006	Carbon steel
Lubricant	Unimec Atir SH150		Synthetic oil	3,1 lt

General features

Gear backlash	15' - 20'
Forced lubrication speed	800 rpm
Grease lubrication speed	100 rpm
Operating temperature [°C]	-10 °C / 80 °C
Solid protruding shaft maximum moment	8000 Nm
Maximum input speed	1000 rpm
Main gearbox weight	105 kg

Specific features

	Nominal ratios
	1/1	1/1,5	1/2	1/3	1/4
Phase between keys	+/- 6°	+/- 5,5°	+/- 6°	+/- 5°	+/- 4,5°
Inertia moment	91500 kg-mm²	32800 kg-mm²	17700 kg-mm²	8670 kg-mm²	5830 kg-mm²

Power curves

The magenta zone indicates a potential heating risk. Working cycles must be carefully analized.
S = Rotational speed of the fast/slow shaft [rpm]
CL = Slow shaft torque [Nm]
P = requested input power [kW]

Max admissible loads

Admissible loads
S = Fast shaft rotational speed [rpm]
RL = Admissible radial load [kN]
AL = Admissible axial load [kN]
HS = Hub shaft
RHS = reinforced hub shaft
PS = Solid protruding shaft

Motor Models

IEC	Worm screw bore diameter	Centering diameter	Nominal power (4 poles motor)
IEC 180 B5	48 mm	250 mm	22 kW
IEC 225 B5	55 mm	350 mm	45 kW
IEC 250 B5	60 mm	450 mm	55 kW
IEC 200 B5	55 mm	400 mm	30 kW
IEC 160 B5 / B14	42 mm	250 mm / 180 mm	15 kW