High Pressure Gear Motors KM 1

Transcription

1 High Pressure Gear Motors KM 1

2 2 KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web

3 Construction Housing 2 Gearing 3 Drive shaft end 4 lange mounting cover 5 nd cover 6 Double gland bearing with special plane bearing bushes 7 Rotary shaft lip-type seals 8 Pressure field sealing for axial clearance compensation 9 Sealing of the housing 1 unction Accordingly to its configuration the Design principle is illustrated by the Sectional figure above the KRACHT xternal Gear-Type Motor Series KM 1 is classified in the category of the so-called Gland-Type Bearing Motors. All essential functional parts as the gearing and the gland bearings are located in an aluminium housing manufactured of a high strength extrusion alloy which is closed on each side by an end cover or by a flange mounting cover respectively. The gearing of case hardening steel in surface hardened condition consists of the pinion shaft and the pinion. Highest manufacturing quality is assured by grinding and honing of the tooth flanks. The surfaces of the journals are super finished. An important reduction of the type dependent deviation of the volumetric flow and of the pressure pulsation was achieved on the basis of the great teeth number (z = ) and the specially shaped teeth. The gland bearings located on both sides of the gearing carry the journals in heavy duty multicomponent plane bearing bushes and contain additionally those sealing elements which serve for the pressure field sealing to compensate the axial clearance. If requested the engines with built up special valve can be delivered. Multiple engine combinations are possible. The optimal design of the pressure fields guarantees very good efficiencies over a wide pressure/speed range on the one hand at the nominal working point for instance a total efficiency of 9 % and above is reached and ensures a smooth starting behaviour of the motor on the other hand and that already at a low rate of the input flow. As the pressure fields are symmetrically arranged the motors can be used as well for clockwise as for anticlockwise rotation (reversible working modes). The pressure relief of the shaft seal is effected by the drain port to be found in the end cover, (note the max. permissible drain pressure) so that the motors may be pressurized at the outlet side, hence follows that it is possible to connect together several motors in series. or high speed Operation the shaft seal must be of KM-material, refer to page 5. The combination of 2 motors for instance coupled together and provided with a common supply line makes a low Divider with a high dividing accuracy. Note: xternal loads Radial or Axial loads acting on the shaft end impair the functions of the gland bearings. Radial loads can possibly be absorbed in dependence on the extent and the direction of the loads. Axial loads are NOT permissible. To absorb external loads the motor type with outboard bearing must be used. New (on request): These engines are also available with reduced flank clearance. This results in lower pulsation and considerably improved start-up behaviour. KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web 3

4 General Characteristics Materials Mounting flange and foot-type Housing aluminium Pipe connection Direction of rotation Weight itting position flange-type clockwise and anticlockwise refer to dimensional sheet optional Permissible ambient temperature range ϑ u min = -- 2 C ϑ u max = + 6 C Working Characteristics Working pressures Input side p 1 max = refer to technical data Outlet side p 2 max = 12 bar Drain pressure p T max = 2 bar Short time p T max = 5 bar luid temperature range ϑ m max = 9 C for NBR rotary shaft lip-type seal 1 C for KM rotary shaft lip-type seal Viscosity range ν min = 1 mm 2 /s ν max = 6 mm 2 /s iltration ISO 446 : 1999 code 21/19/16 (NAS 1638 class 1) Grade of filtration β for 3 bar β 4 75 for 1 bar Bearing Journals and gears Seals double gland bearing with multicomponent plane bearing bushes ase hardening steel acc. to DIN 1721 surface hardened and ground 1 NBR rotary shaft lip-type seal ϑ 9 C (PU sealing for pressure field) 2 KM rotary shaft lip-type seal ϑ 1 C (PU sealing for pressure field) Options Hydraulic an Drive Solutions KM 1 with pressure relief valve (standard and space optimized) KM 1 with proportional valve (standard and space optimized) KM 1 with proportional valve and reversible unit (standard and space optimized) KM 1 with ON-O function KM 1 with pressure relief valve and reversible unit KM 1 with thermostatic valve and pressure relief valve KM 1 with thermostatic valve and pressure relief valve with reversible unit Recommended Viscosity range ν = 3 45 mm 2 /s Characteristic curves refer to pages 6--1 Hydraulic fluids Mineral oil acc. DIN 524/25 Mineral oil acc. DIN 511 bio-oils of type HS, can be used up to 7 C, max. pressure must be reduced minus 2% (use only on request) 4 KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web

5 Technical Data Nominal Geom. motor max. Rated Working max. Moment of inertia motor displacement pressure pressure pressure working speed x 1-6 displacement V g p max p N p D n max J cm 3 /r bar bar bar 1/min kg m 2 4 NL 4 NM NBR KM Note: Allowed torque for the shaft end follow! Time / Pressure chart Calculation ormulas for Hydraulic Pumps and Motors Pressure P [bar] P max P N P D t(s) Maximum pressure pressure peak Rated pressure p N < 6s 5 % D see time / pressure chart max. perm. working cycles: 3/min Pressures as specified are applicable to ν 3 mm 2 /s Time Characteristic data, formula signs, units 1. Discharge flow / input flow Q l/min 2. Pump / motor displacement V g cm 3 /r 3. Pressure p bar 4. Speed n 1/min 5. Torque M Nm 6. Power P kw 7. Total efficiency η tot 8. Volumetric efficiency η vol 9. Hydr./mech. efficiency η hm 1. low velocity v m/s 11. Piping diameter d mm General 1 input, driven 2 output, driving Q th = V g n, η tot = η vol η hm M= 9549 P, v = Q n d 2 Approximate values for KRACHT products in the nominal working point η tot η vol KP KM Q 2 Q 1 n 1 M 1 p Pump n 2 M 2 p Motor P 1 P 2 Characteristic data for: Volumetric flow Torque Power Discharge flow Drive torque M 1 = Input power P 1 = Q 2 = V g n 1 η vol 1 3 l min p V g 2 π η hm [Nm] p Q 2 6 η tot [kw] Input flow Q 1 = Output torque Output power V g n η vol M 2 = Δp V g η hm 2 π P 2 = Δp Q 1 η tot 6 l min [Nm] [kw] KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web 5

6 Guidance for use of the Characteristic Curves Required: Torqe output M at speed n Unknown: Pressure difference Δp and the required Input flow Q 6 xample: M = 45 Nm ➀ n = 14 1/min ➁ The Intersection of ➀ and ➁ is the motor working point with: Δp = 142 bar ➂ Q = 32.2 l/min ➃ Torque output M Nm % 85% tot 3 = 8% 75% 7% Pressure difference Δp bar 1 6% Speed n 1/min Input flow Q l/min 32, Characteristic Curves for Type KM 1/5.5 Characteristic values applicable to viscosity ν = 34 mm 2 /s Dispersion of the speed values n = ± 75 1/min Dispersion of the torque output M = ± 1.1 Nm at Δp = constant and Q = constant % Torque output M Nm tot = 8% 75% 7% 6% Pressure difference Δp bar Speed n 1/min Input flow Q l/min KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web

7 Characteristic Curves for Type KM 1/8 Characteristic values applicable to viscosity ν = 34 mm 2 /s Dispersion of the speed values n = ± 75 1/min Dispersion of the torque output M = ± 1.6 Nm at Δp = constant and Q = constant % Torque output M Nm Drehzahl n 1/min Input flow Q l/min tot 85% = 8% 75% 7% 6% Pressure difference Δp bar Characteristic Curves for Type KM 1/11 Characteristic values applicable to viscosity ν = 34 mm 2 /s Dispersion of the speed values n = ± 75 1/min Dispersion of the torque output M = ± 2.2 Nm at Δp = constant and Q = constant % Torque output M Nm tot 85% = 8% 75% 7% 6% Pressure difference Δp bar Drehzahl n 1/min Input flow Q l/min KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web 7

8 Characteristic Curves for Type KM 1/14 Characteristic values applicable to viscosity ν = 34 mm 2 /s Dispersion of the speed values n = ± 75 1/min Dispersion of the torque output M = ± 2.8 Nm at Δp = constant and Q = constant % 24 Torque output M Nm Speed n 1/min Input flow Q l/min tot 85% = 8% 75% 7% 6% Pressure difference Δp bar Characteristic Curves for Type KM 1/16 Characteristic values applicable to viscosity ν = 34 mm 2 /s Dispersion of the speed values n = ± 75 1/min Dispersion of the torque output M = ± 2.8 Nm at Δp = constant and Q = constant % 45 2 Torque output M Nm = 8% Speed n 1/min Input flow Q l/min tot 85% 75% 7% 6% Pressure difference Δp bar 8 KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web

9 Characteristic Curves for Type KM 1/19 Characteristic values applicable to viscosity ν = 34 mm 2 /s Dispersion of the speed values n = ± 75 1/min Dispersion of the torque output M = ± 2.2 Nm at Δp = constant and Q = constant % 2 Torque output M Nm tot 85% = 8% 75% Pressure difference Δp bar 1 7% 6% Speed n 1/min Input flow Q l/min Characteristic Curves for Type KM 1/22 Characteristic values applicable to viscosity ν = 34 mm 2 /s Dispersion of the speed values n = ± 75 1/min Dispersion of the torque output M = ± 2.8 Nm at Δp = constant and Q = constant % 85% Torque output M Nm tot = 8% 75% 7% 12 8 Pressure difference Δp bar 1 6% Speed n 1/min Input flow Q l/min 2 KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web 9

10 Characteristic Curves for Type KM 1/25 Characteristic values applicable to viscosity ν = 34 mm 2 /s Dispersion of the speed values n = ± 75 1/min Dispersion of the torque output M = ± 2.8 Nm at Δp = constant and Q = constant % 86% 85% 18 Torque output M Nm tot = 8% 75% 7% Pressure difference Δp bar 1 6% Speed n 1/min Input flow Q l/min 2 1 KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web

11 Type Key Shaft ends with two parallel flats M max = 4 Nm K Taper 1: 5 M max = 16 Nm M Taper 1: 8 M max = 16 Nm S Involute spline SA-A, DP 16/32, α = 3, z = 9, M max = 55 Nm X Involute spline B 17 x 14, DIN 5482, M max = 7 Nm Housing ports A Ø with LK 35 C G 1 2 (on request) D M 22 x 1.5 (on request) J 7/8 14 UN (on request) Q Ø.5 with LK 3.2 ( ) Outboard flanges or bearing resp. without L Bearing series: light P Bearing series: heavy R Mounting angle Ordering example Second shaft end without X Involute spline B 17 x 14, DIN 5482 nd cover (adaptor pieces) A nd cover (standard type) B nd cover with side drain port Adaptor piece for multi-stage pump types KM1 coupled with KM1 only Design serial no. 4 (Specified by Kracht) Code for materials N Housing: Aluminium double bland bearing with multicomponent plane bearing bushes KM 1/ 5.5 G 3 A K A 4 N L 1/. Type of gearing L Driving and driven gears of case hardening steel (tooth flanks grinded and hones) M reeduced backlash of teeth Direction of rotation 3 clockwise and anticlockwise Selection: flange mounting cover A SA-A-2-bolt type, LA = 16.4; Ø Z = bolt square flange, LA = 6/6; Ø Z = 5 G 4 bolt rectangular flange, LA = 72/1; Ø Z = 8 K 4 bolt rectangular flange, LA = 71.4/96.1; Ø Z = L 2 bolt rectangular flange, LA = 6/6; Ø Z = 52 with O-ring (without shaft seal) M same as type ; but the bolting is mirror inverted Q 2 bolt square flange, LA = 6/6; Ø Z = 52 with O-ring (LA = mounting hole distance, Ø = centering diameter) Size 1 Nominal motor displacement 5,5 / 6,3 / 8 / 9,6 / 11 / 14 / 16 / 19 / 22 / 25 Seals 1 NBR rotary shaft lip type seals ϑ 9 C 2 KM rotary shaft lip type seals ϑ 1 C Product name Code no. for special construction KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web 11

12 G-lange, Tapered Shaft nd KM 1/8 G3A KA 4NL Shaft end: taper 1: 5 Hex. lock nut M 12 x 1.5 N ISO 8675 Curved spring washer B12 DIN 7 Woodruff key 3 x 6.5 DIN M 6- deep Ø Ø Ø Ø M A= 3 Nm Ø 9 G-lange, Involute Spline Shaft nd KM 1/8 G3A XA 4NL Shaft end: involute spline B 17 x 14 DIN 5482 but tooth thickness S w = 3.26 Addendum modification = M 6- deep Ø 16.5 h11 1 Ø Ø Ø Ø 9 Displacement Nominal size Weight kg KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web

13 nd Cover B nd cover B available for all types of motor. Connection of the drain piping optional on the right or left side M 6- deep 17 R 47.6 Ø Ø 17 Ø R 12 Ø 11 Ø 23 1 Ø Screw plug SA A-lange, Tapered Shaft nd KM 1/8 A3A KA 4NL1 Shaft end: taper 1: 5 Hex. lock nut M 12 x 1.5 N ISO 8675 Curved spring washer B12 DIN 7 Woodruff key 3 x 6.5 DIN Ø M A= 3 Nm KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web

14 SA A-lange, SA A-Shaft-nd KM 1/8 A3A SA 4NL Shaft end: involute spline SA-A z = 9; DP 16/32; α =3 allowed torque M max = 55 Nm 16.4 M 6- deep 16 R 47.6 Ø Ø Ø R 12 Ø 11 Ø Ø SA A-lange, Involute Spline Shaft nd KM 1/8 A3A XA 4NL1 Shaft end: involute spline B 17 x 14 DIN M 6- deep 14 R 47.6 Ø Ø 16.5 h11 Ø R 12 Ø 11 Ø Ø Displacement Nominal size Weight kg KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web

15 K-lange, Tapered Shaft nd 1: 8 KM 1/8 K3Q MA 4NL Shaft end: taper 1: 8 Hex. lock nut M 12 x 1.5 N ISO 8675 Curved spring washer B12 DIN 7 Woodruff key 3 x 6.5 DIN 6888 M 6- deep Ø 2.7 Ø Ø.5 Ø 3.2 ±. -.5 Ø M A= 3 Nm R 9 88 Ø K-lange, Involute Spline Shaft nd KM 1/8 K3Q XA 4NL Shaft end: involute spline B 17 x 14 DIN 5482 but tooth thickness S w = 3.26 Addendum modification = +.6 M 6- deep Ø 2 Displacement Nominal size.7 Ø.5 Ø 3.2 ±. h11 Ø Ø R Weight kg Ø KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web

16 -lange, Tapered Shaft nd KM 1/8 3A KA 4NL1 4.5 Shaft end: taper 1: 5 Hex. lock nut M 12 x 1.5 N ISO 8675 Curved spring washer B12 DIN 7 Woodruff key 3 x 6.5 DIN M 6- deep 17 M A = 5 +1 Nm Ø Ø 17 Ø Ø M M A= 3 Nm M A = 5 +1 Nm -lange, Involute Spline Shaft nd KM 1/8 3A XA 4NL1 26 Shaft end: involute spline B 17 x 14 DIN 5482 but tooth thickness S w = 3.26 Addendum modification = M 6- deep 14 M A = 5 +1 Nm 6 Ø 16.5 Ø h11 Ø Ø M M A = 5 +1 Nm Displacement Nominal size Weight kg KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web

17 M-lange, Tapered Shaft nd KM 1/8 M3A KA 4NL1 4.5 Shaft end: taper 1: 5 Hex. lock nut M 12 x 1.5 N ISO 8675 Curved spring washer B12 DIN 7 Woodruff key 3 x 6.5 DIN M 6- tief deep Ø 2 Ø Ø 5 M A = 5 +1 Nm.7 Ø M M A= 3 Nm M A = 5 +1 Nm M-lange, Involute Spline Shaft nd KM 1/8 M3A XA 4NL1 26 Shaft end: involute spline B 17 x 14 DIN 5482 but tooth thickness S w = 3.26 Addendum modification = M 6- deep 14 6 M A = 5 +1 Nm Ø 16.5 Ø h11 Ø Ø M M A = 5 +1 Nm Displacement Nominal size Weight kg KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web 17

18 Q-lange, Tapered Shaft nd KM 1/8 Q3A KA 4NL1 M 6- deep M A = 5 +1 Nm O-Ring extent of Kracht delivery 6 Shaft end: taper 1: 5 Hex. lock nut M 12 x 1.5 N ISO 8675 Curved spring washer B12 DIN 7 Woodruff key 3 x 6.5 DIN M A= 3 Nm M 6- deep Ø 16.5 Ø h11 Ø Ø Ø 17 Ø Ø M M A = 5 +1 Nm Q-lange, Involute Spline Shaft nd KM 1/8 Q3A XA 4NL1 M A = 5 +1 Nm O-Ring extent of Kracht delivery Shaft end: involute spline B 17 x 14 DIN 5482 but tooth thickness S w = 3.26 Addendum modification = Ø M M A = 5 +1 Nm Displacement Nominal size Weight kg KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web

19 L-lange, Parallel lat Shaft nd, without Shaft Lip-Type Seal KM 1/8 L3A A 4NL1 allowed torque M max = 4 Nm M 6- deep O-Ring extent of Kracht delivery 6.5 M A = 5 +1 Nm Ø Ø Ø Ø 32 Ø Ø M M A = 5 +1 Nm L-lange, Involute Spline Shaft nd, without Shaft Lip-Type Seal KM 1/8 L3A XA 4NL1/ O-Ring extent of Kracht delivery Shaft end: involute spline B 17 x 14 DIN 5482 but tooth thickness S w = 3.26 Addendum modification = +.6 M 6- deep M A = 5 +1 Nm 6 Ø Ø Ø 18 h11 Ø 32 Ø Ø Ø M M A = 5 +1 Nm Displacement Nominal size Weight kg KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web 19

20 Outboard Bearing L, G-lange, Tapered Shaft nd Ø 2 mm KM 1/8 L3LA X A 4NL1 47 Shaft end: taper 1: 5 Hex. lock nut BM 14 x 1.5 N ISO 8675 Curved spring washer B14 DIN 127 Woodruff key 4 x 6.5 DIN M 6- tief deep M 6- tief deep Ø Ø Ø Ø Ø 2 2 M 14x1.5 Ø Ø 14 M A = 63 Nm Ø 9 Ø 1 R 9 Outboard Bearing L, G-lange, Tapered Shaft nd Ø 17 mm KM 1/8 L3LA A 4NL1/324 X Shaft end: taper 1: 5 Hex. lock nut BM 12 x 1.5 N ISO 8675 Curved spring washer B12 DIN 7 Woodruff key 3 x 6.5 DIN Ø 14 M A = 3 Nm Ø 9 Ø 1 R 9 Displacement Nominal size Weight kg KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web

21 R 12 High Pressure Gear Motors KM 1 Outboard Bearing L, -lange, Tapered Shaft nd Ø 17 mm KM 1/8 L3LA X A 4NL1/375 M 6- tief deep M A = 5 +1 Nm 6 Shaft end: taper 1: 5 Hex. lock nut BM 12 x 1.5 N ISO 8675 Curved spring washer B12 DIN 7 Woodruff key 3 x 6.5 DIN 6888 M 6- tief deep R 47.6 Ø Ø 2 2 M 14x1.5 Ø Ø 11 Ø 23 1 Ø Ø Ø Ø M 1 M A = 3 Nm M A = 5 +1 Nm Displacement Nominal size Weight kg Outboard Bearing L, A-lange, Tapered Shaft nd Ø 2 mm KM 1/8 L3LA A 4NL1/381 X Shaft end: taper 1: 5 Hex. lock nut BM 14 x 1.5 N ISO 8675 Curved spring washer B14 DIN 127 Woodruff key 4 x 6.5 DIN M A = 63 Nm Ø Displacement Nominal size Weight kg KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web 21

22 Permissible Load Outboard Bearing L, Tapered Shaft nd Ø 19 8 H8 R R Ø 3 12 l l Coupling KP 1L Part number:.1441 Permissible radial load R max as function of the supporting distance l for a given axial force A (for L h = 1, h), medium wave at I = 21.5 mm 25 A = N 25 A = 2 N 2 2 R max (N) 1 5 n = 1 1/min n = 2 1/min n = 3 1/min R max (N) 1 5 n = 1 1/min n = 2 1/min n = 3 1/min l (mm) l (mm) 25 A = 4 N 25 A = 6 N 2 2 R max (N) l (mm) n = 1 1/min n = 2 1/min n = 3 1/min R max (N) l (mm) n = 1 1/min n = 2 1/min n = 3 1/min 25 A = 8 N 25 A = 9 N 2 2 R max (N) 1 R max (N) l (mm) n = 1 1/min n = 2 1/min n = 3 1/min l (mm) n = 1 1/min n = 2 1/min n = 3 1/min 22 KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web

23 Permissible Load Outboard Bearing P, Tapered Shaft nd Ø Ø Ø M 14x1.5 M A= 63 Nm M 1-22 tief 6 ill with 5 cm 3 oil (ISO VG 1-68) before assembly R R l Shaft end: taper 1: 5 Hex. lock nut M 14 x 1.5 Curved spring washer B14 Woodruff key 4 x 6.5 Weight of the outboard bearing 3.5 kg KM 1/8 Q3PA XA 4NL1 Permissible radial load R max as function of the supporting distance l for a given axial force A (for L h = 1, h), medium wave at I = 38 mm 25 A = N 25 A = 2 N 2 2 R max (N) l (mm) n = 1 1/min n = 2 1/min n = 3 1/min R max (N) l (mm) n = 1 1/min n = 2 1/min n = 3 1/min 25 A = 4 N 25 A = 6 N 2 2 R max (N) l (mm) n = 1 1/min n = 2 1/min n = 3 1/min R max (N) l (mm) n = 1 1/min n = 2 1/min n = 3 1/min 25 A = 8 N 25 A = 9 N 2 2 R max (N) 1 R max (N) l (mm) n = 1 1/min n = 2 1/min n = 3 1/min l (mm) n = 1 1/min n = 2 1/min n = 3 1/min KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web 23

24 Mounting Angle, Tapered Shaft nd KM 1/8 3RA KA 4NL1 4.5 Shaft end: taper 1: 5 Hex. lock nut M 12 x 1.5 N ISO 8675 Curved spring washer B12 DIN 7 Woodruff key 3 x 6.5 DIN M 6- deep 17 M A= 3 Nm 6 Ø Ø 5 Ø Ø 28 Ø Displacement Nominal size Weight kg KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web

25 Double Type, Tapered Shaft nd L Q M 6- deep M 6- deep M Ø 9 Ø Ø Ø Ø Ø All connections xample Other flanges and shaft ends possible/available KM 1/8 G3A KX 4NL1/2 + KM 1/8 L3A XA 4NL1/2 Nominal displacement Nominlal displacement 1. Stage M d Q L Q L Q L Q L Q L Q L Q L Q L Q L Stage KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web 25

26 low Divider KM 1 M 6- deep s KM 1/16 L3A XX 4NL1/231 + KM 1/16 L3A XA 4NL1/2 + KM 1/16 L3A XX 4NL1/231 + KM 1/16 L3A XA 4NL1/ M 6- deep M 6- deep Ø 56 M 8 Ø s KM 1/11 L3A XA 4NL1/191 + KM 1/11 L3A XA 4NL1/ KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web

27 Coupling and Accessories Type A L Type B L DH D Part 1 Part 2 Part 1 Part 3 dh D DH D dh D 1 s b s s b s Taper 1:5 M1 l1 l M Internal flexible coupling block of polyurethane (vulkollan) shore hardness 92 Colour: yellow Taper 1:5 M1 l1 l M Coupling size Length of the coupling hub and the hub bore pump sided Length of the coupling hub and the hub bore motor sided straight hub bore RA 38 K 18/17 Z 45/38 Coupling Weight Moment Rough bore inished bore Dimensions Ordering code size of inertia min. min. max. max. Part Part Part Part Part Part kg kgm l l 1 s b L M M 1 D H D D 1 d H RA 24-K18/17-Z 3/... Type RA 28-K18/17-Z 35/... A RA 38-K18/17-Z 45/ RA 42-K18/17-Z 5/... 24/ RA 24/28-K18/17-Z 3/... Type B 28/ RA 28/38-K18/17-Z 35/... 38/ RA 38/45-K18/17-Z 45/... 38/ RG 38/45-K18/17-Z 7/... 42/ RG 42/55-K18/17-Z 5/... Working temperatur: 4 C to + 9 C (short time temperature peaks up to + 12 C are permissible) Weights as well as moments of inertia relate to the max. bore dia. after final machining but without key-way. Bore finish acc. to ISO-fit class H7; key-ways acc. to DIN 6885 / part Coupling sleeve: 9 RA: Hub material Al RG: Hub material part 2 and 3 GG Retaining ring 14 x 1 DIN Ø 25 Internal involute A 17 x 14 DIN 5482 sheet 1 Ø Coupling sleeve size 1 Part number: B.7921 Coupling KP 1 k-shaft Partnumber: KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web 27

28 Straight langed Connector Hex. socket head cap screw (DIN ) 2 Single coil spring lock washer (A6 DIN 127) 3 Covering nut with cutting ring (SW) GDA O-Ring (2 x 2.5) M A = 1 +1 Nm L Inlet port Ordering code Rated pressure Dimensions Cap screw Weight pipe externa dia. P N in bar mm L SW kg 16 GDA 1/ x M6 x GDA 1/ x M6 x GDA 1/ x M6 x lbow langed Connector 1 2 Ordering example of a complete connection: or the inlet port: Straight flanged connector GDA 1/22 or the outlet port: lbow flanged connector WDA 1/2 1 L xtend of Kracht delivery: Hex. socket head cap screw acc. to DIN 912 as well as single coil spring lock washers and O-rings. WDA 3 O-Ring (2 x 2.5) L 2 M A = 1 +1 Nm Inlet port Ordering code Rated pressure Dimensions Cap screw Weight pipe externa dia. P N in bar mm L 1 L 2 SW kg 2 WDA 1/ x M6 x 45 2 x M6 x WDA 1/ x M6 x 4 2 x M6 x WDA 1/ x M6 x 35 2 x M6 x WDA 1/ x M6 x 35 2 x M6 x KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ web mail [email protected]

29 Note KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web 29

30 Note 3 KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ web mail [email protected]

31 KRACHT GmbH Gewerbestr Werdohl, Germany fon +49()23 92/935- fax +49()23 92/ mail [email protected] web 31

32 Product Portfolio Transfer Pumps Transfer pumps for lubricating oil supply equipment, low pressure filling and feed systems, dosing and mixing systems. Mobile Hydraulics Single and multistage high pressure gear pumps, hydraulic motors and valves for construction machinery, vehicle-mounted machines. low Measurement Gear and turbine flow meters and electronics for volume and flow metering technology in hydraulics, processing and laquering technology. Industrial Hydraulics / Test Bench Construction Cetop directional control and proportional valves, hydraulic cylinders, pressure, quantity and stop valves for pipe and slab construction, hydraulic accessories for industrial hydraulics (mobile and stationary use). Technology Test benches / luid Test benches. KM1/GB/4.11 KRACHT GmbH Gewerbestr Werdohl, Germany fon +49 () / 935- fax +49 () / mail [email protected] web