High-Pressure Gear Motors KM 2 High Pressure Gear Motors KM 2 1 Housing 2 Gearing 3 Drive shaft end 4 Flange cover 5 Pressure field sealing for axial clearance compensation 6 Sliding plates 7 Rotary shaft lip-type seal 8 Plain bearing 9 Sealing of the housing 10 Drain port Function The construction (design principle) and materials of the KRACHT KM 2 series external gear motors make them perfect for use under the most extreme operating conditions. The main components form the housing and flange cover (see sectional drawing). They can be dynamically highly loaded, making them insensitive to pressure...

High-Pressure Gear Motors KM 2 High Pressure Gear Motors KM 2 Materials Housing cast iron / spheroidal cast iron multi-compound plain bearing bushes case hardening steel acc. to DIN 17210 surface hardened and ground NBR rotary shaft lip-type seal and PU-pressure field sealing ϑ 90 °C FKM rotary shaft lip-type seal and PU-pressure field sealing ϑ 100 °C Characteristics Mounting Pipe connection right, left, right + left refer to dimensional sheet Fitting position Ambient temperature Working pressure input = 350 bar (refer to technical data) Drain pressure Working pressure output Fluid temperature...

High-Pressure Gear Motors KM 2 High Pressure Gear Motors KM 2 Calculation Formulas for Hydraulic Pumps and Motors Time / Pressure chart Characteristic data, formula signs, units Maximum pressure ‫ ־‬pressure peak Rated pressure pN < 6s ‫ % 05 ־‬ED see time / pressure chart max. perm. working cycles: 30/ min Pressures as specified are applicable to ν м 30 mm2/s Discharge flow / input flow Pump / motor displacement Pressure Speed Torque Power Total efficiency Volumetric efficiency Hydr. / mech. efficiency Flow velocity Piping diameter General 1 ‫ ־‬input, driven 2 ‫ ־‬output, driving Qth = Vg ·...

High-Pressure Gear Motors KM 2 High Pressure Gear Motors KM 2 Technical Data KM 2 ... 4DL Nominal Geom. motor motor displacement displacement Vg cm3/r Working pressure Rated pressure Peak pressure max. Moment of inertia working speed x 10-5 Working pressure Rated pressure Peak pressure KM 2 … 4VL Nominal Geom. motor motor displacement displacement Vg cm3/r max. Moment of inertia working speed x 10-5 KRACHT GmbH · Gewerbestr. 20 · 58791 Werdohl, Germany · Phone +49 23 92.935-0 · Fax +49 23 92.935 209 · Email [email protected] · Web www.kracht.eu

High-Pressure Gear Motors KM 2 High Pressure Gear Motors KM 2 Guidance for use of the Characteristic Curves Required: Torqe output M at speed n Unknown: Pressure difference Δp and the required Input flow Q The Intersection of and is the motor working point with: Δp = 142 bar © Q = 32.2 l/min Input flow Q l/min Characteristic Curves for KM 2/20 … 4.L. Characteristic values applicable to viscosity ν = 34 mm2/s · Dispersion of the speed values n = ± 75 1/min Dispersion of the torque output M = ± 3.0 Nm at Δp = constant and Q = constant Zahnradmotor KM2/20 ... 4.L. Torque output M Nm Drehmoment M...

High-Pressure Gear Motors KM 2 High Pressure Gear Motors KM 2 Characteristic Curves for KM 2/25 … 4.L. Characteristic values applicable to viscosity ν = 34 mm2/s · Dispersion of the speed values n = ± 75 1/min Dispersion of the torque output M = ± 4.5 Nm at Δp = constant and Q = constant Zahnradmotor KM2/25 ... 4.L. Pressure difference Δp bar Druckdifferenz Δ p bar Input flow Q l/min Schluckstrom Q l/min Characteristic Curves for KM 2/28 … 4.L. Characteristic values applicable to viscosity ν = 34 mm2/s · Dispersion of the speed values n = ± 75 1/min Dispersion of the torque output M = ± 5.0 Nm...

High-Pressure Gear Motors KM 2 High Pressure Gear Motors KM 2 Characteristic Curves for KM 2/32 … 4.L. Characteristic values applicable to viscosity ν = 34 mm2/s · Dispersion of the speed values n = ± 75 1/min Dispersion of the torque output M = ± 5.5 Nm at Δp = constant and Q = constant Zahnradmotor KM 2/32 ... 4.L. 50 60 Schluckstroml/min Input flow Q Q l/min Characteristic Curves for KM 2/40 … 4.L. Characteristic values applicable to viscosity ν = 34 mm2/s · Dispersion of the speed values n = ± 75 1/min Dispersion of the torque output M = ± 6.0 Nm at Δp = constant and Q = constant Zahnradmotor...

High-Pressure Gear Motors KM 2 High Pressure Gear Motors KM 2 Characteristic Curves for KM 2/50 … 4.L. Characteristic values applicable to viscosity ν = 34 mm2/s · Dispersion of the speed values n = ± 75 1/min Dispersion of the torque output M = ± 7.5 Nm at Δp = constant and Q = constant Zahnradmotor KM2/50 ... 4.L. 250 Torque output M Nm Drehmoment M Nm Pressure difference Δp bar Druckdifferenz 80 60 70 90 Schluckstrom Q l/min Input flow Q l/min Characteristic Curves for KM 2/62 … 4.L. Characteristic values applicable to viscosity ν = 34 mm2/s · Dispersion of the speed values n = ± 75 1/min...

High-Pressure Gear Motors KM 2 High Pressure Gear Motors KM 2 Type Key Shaft ends K Taper 1: 5; 500 Nmmax U Involute spline SAE-B; Z = 13; DP 16/32; Second shaft end 0 without Y cylindrical shaft Ø 24; 230 Nmmax W Involute spline B 28 x 25; End cover (adaptor pieces) 0 Standard version (without) Design serial no. 4 (Specified by Kracht)) Housing ports A Ø 26 with LK 55 F to VG 50 SAE 1" Standard 4DL to VG 50 SAE 1" 6000 psi Housing and bearing version D cast iron housing with multicomponent plane bearing bush V spheroidal cast iron housing with reinforced plain bearing bush Outboard flanges or...

High-Pressure Gear Motors KM 2 High Pressure Gear Motors KM 2 Flange type 4 bolt rectangular flange G 4 bolt rectangular flange G with drain port front / Special no. /04 2 bolt flange F with drain port front / Special no. /04 2 bolt flange M with drain port front / Special no. /04 Dimensions in mm KRACHT GmbH · Gewerbestr. 20 · 58791 Werdohl, Germany · Phone +49 23 92.935-0 · Fax +49 23 92.935 209 · Email [email protected] · Web www.kracht.eu