Unimec RK 250 Bevel Gearbox

Code: RK 250

Marque: Unimec

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.
Hollow shaft / Solid 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
Hollow shaft maximum moment	3900 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

Unimec Fiches techniques

Pays et langue	Nom du fichier	Lien de téléchargement
United States (English)	Unimec-EN_59050.pdf	Télécharger
Deutschland (Deutsch)	Unimec-DE_13807.pdf	Télécharger
Italy (Italiano)	Unimec-IT_75906.pdf	Télécharger
中国（简体	Unimec-CN_95426.pdf	Télécharger