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High pressure gear motors KM 1

High pressure gear motors KM 1
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High pressure gear motors KM 1

Product catalog summary
Overview: The document outlines the technical specifications and operational guidelines for the KRACHT High-Pressure Gear Motors KM 1 series, designed for high efficiency and smooth operation in industrial applications. These motors are classified as Gland-Type Bearing Motors.
Specifications: The motors feature an aluminium housing with case hardening steel gearing, capable of both clockwise and anticlockwise rotation. They achieve a total efficiency of 90% or higher at nominal working points.
Construction: Key components include the housing, gearing, drive shaft end, flange mounting cover, end cover, double gland bearing with special plane bearing bushes, rotary shaft lip-type seals, and pressure field sealing for axial clearance compensation. Materials like FKM are used for high-speed operations.
Operational Guidelines: The motors can be used in series with multiple engine combinations. They include a drain port for pressure relief, and external loads should be managed to avoid impairing the gland bearings. Axial loads are not permissible, and radial loads should be absorbed using a motor type with outboard bearing.
Technical Data: Detailed technical data includes nominal motor displacement, maximum rated working pressure, and speed. Formulas for calculating discharge flow, torque, and power are provided, along with characteristic curves for different motor types.
Options and Customization: Various options are available, including hydraulic fan drive solutions with different valve configurations. Customization options include different seals, flange types, and shaft ends.
Characteristic Curves: Characteristic curves illustrate the relationship between torque output, pressure difference, speed, and input flow, essential for understanding motor performance under different conditions.
Additional Specifications: The KM 1 series features double-type gear motors with tapered shaft ends and balanced input and outlet sides. Nominal displacement for the first stage ranges from 5.5 to 25.
Dimensions: Detailed measurements are provided for components, including coupling size, weight, moment of inertia, and bore dimensions. Internal flexible couplings are made of polyurethane with a shore hardness of 92°.
Ordering Information: Examples of ordering codes for different configurations, including variations in nominal displacement and coupling types, are provided. Ordering examples for straight and elbow flanged connectors specify rated pressure and dimensions.
Operating Conditions: The gear motors operate within a temperature range of -40°C to +90°C, with short-term peaks up to +120°C permissible. Adherence to ISO-fit class H7 for bore finishes and DIN 6885 for key-ways is highlighted.
Product Portfolio: KRACHT GmbH offers a wide range of products, including valves, hydraulics, flow measurement devices, and gear pumps.
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Catalog excerpts

High pressure gear motors KM 1-2

High-Pressure Gear Motors KM 1

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High pressure gear motors KM 1-3

High-Pressure Gear Motors KM 1 High Pressure Gear Motors KM 1 3 1 Housing 2 Gearing 3 Drive shaft end 4 Flange mounting cover 5 End 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 10 Drain port Function Accordingly to its configuration – the Design principle is illustrated by the Sectional figure above – the KRACHT External 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...

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High pressure gear motors KM 1-4

High-Pressure Gear Motors KM 1 High Pressure Gear Motors KM 1 General Characteristics Pipe connection double gland bearing with multicomponent plane bearing bushes refer to dimensional sheet Fitting position ase hardening steel acc. to DIN 17210 surface hardened and ground 1 NBR rotary shaft lip-type seal ϑ ≤ 90 °C (PU sealing for pressure field) Permissible ambient temperature range 2 FKM rotary shaft lip-type seal ϑ ≤ 100 °C (PU sealing for pressure field) Working Characteristics Working pressures Input side Outlet side p1 max = refer to technical data p2 max = 120 bar Drain pressure Short...

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High pressure gear motors KM 1-5

High-Pressure Gear Motors KM 1 High Pressure Gear Motors KM 1 Technical Data Nominal motor displacement Geom. motor displacement Vg cm3/r 4 NL 4 NM max. working speed nmax 1/min NBR FKM Note: Allowed torque for the shaft end follow ! Calculation Formulas for Hydraulic Pumps and Motors Time / Pressure chart Characteristic data, formula signs, units Maximum pressure ‫ ־‬pressure peak Rated pressure pN < 6 s ‫ % 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...

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High pressure gear motors KM 1-6

High-Pressure Gear Motors KM 1 High Pressure Gear Motors KM 1 Guidance for use of the Characteristic Curves Example: M = 45 Nm ➞ ➀ n = 1400 1/min ➁ Required: Torqe output M at speed n Unknown: Pressure difference Δp and the required Input flow Q The Intersection of ➀ and ➁ is the motor working point with: Δ p = 142 bar ➞➂ Q = 32.2 l/min ➃ Input flow Q l/min Characteristic Curves for Type KM 1/5.5 Characteristic values applicable to viscosity ν = 34 mm2/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 24 22 Input flow...

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High pressure gear motors KM 1-7

High-Pressure Gear Motors KM 1 High Pressure Gear Motors KM 1 Characteristic Curves for Type KM 1/8 Characteristic values applicable to viscosity ν = 34 mm2/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 34 32 Input flow Q l/min Characteristic Curves for Type KM 1/11 Characteristic values applicable to viscosity ν = 34 mm2/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 50 45 Input flow Q l/min

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High pressure gear motors KM 1-8

High-Pressure Gear Motors KM 1 High Pressure Gear Motors KM 1 Characteristic Curves for Type KM 1/14 Characteristic values applicable to viscosity ν = 34 mm2/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 60 280 Input flow Q l/min Characteristic Curves for Type KM 1/16 Characteristic values applicable to viscosity ν = 34 mm2/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 60 55 Input flow Q l/min

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High pressure gear motors KM 1-9

High-Pressure Gear Motors KM 1 High Pressure Gear Motors KM 1 Characteristic Curves for Type KM 1/19 Characteristic values applicable to viscosity ν = 34 mm2/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 60 55 Input flow Q l/min Characteristic Curves for Type KM 1/22 Characteristic values applicable to viscosity ν = 34 mm2/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 60 55 Input flow Q l/min

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High pressure gear motors KM 1-10

High-Pressure Gear Motors KM 1 High Pressure Gear Motors KM 1 Characteristic Curves for Type KM 1/25 Characteristic values applicable to viscosity ν = 34 mm2/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 65 Input flow Q l/min

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High pressure gear motors KM 1-11

High-Pressure Gear Motors KM 1 High Pressure Gear Motors KM 1 Type Key Second shaft end 0 without X Involute spline Shaft ends F with two parallel flats Mmax = 40 Nm K Taper 1 : 5 Mmax = 160 Nm M Taper 1 : 8 Mmax = 160 Nm S Involute spline SAE-A, DP 16/32, X Involute spline B 17 x 14, DIN 5482, Mmax = 70 Nm Housing ports A Ø 15 with LK 35 C G 1⁄ 2 (on request) D M 22 x 1.5 (on request) J 7/8 – 14 UNF (on request) Q Ø 13.5 with LK 30.2 cover (adaptor pieces) End cover (standard type) End cover with side drain port Adaptor piece for multi-stage pump types KM 1 coupled with KM 1 only Design serial...

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High pressure gear motors KM 1-12

High-Pressure Gear Motors KM 1 High Pressure Gear Motors KM 1 G-Flange, Tapered Shaft End Shaft end: taper 1: 5 Hex. lock nut M 12 x 1.5 EN ISO 8675 Curved spring washer B12 DIN 137 Woodruff key 3 x 6.5 DIN 6888 Ordering example: Drain port Input and outlet side equally sized G-Flange, Involute Spline Shaft End Ordering example: Shaft end: involute spline B 17 x 14 DIN 5482 but tooth thickness Sw = 3.206 Addendum modification = + 0.6 Input and outlet side equally sized Drain port Displacement Nominal size

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High pressure gear motors KM 1-13

High-Pressure Gear Motors KM 1 High Pressure Gear Motors KM 1 End Cover B End cover B available for all types of motor. Connection of the drain piping optional on the right or left side. Screw plug Drain port SAE A-Flange, Tapered Shaft End Ordering example: Shaft end: taper 1: 5 Hex. lock nut M 12 x 1.5 EN ISO 8675 Curved spring washer B12 DIN 137 Woodruff key 3 x 6.5 DIN 6888 Drain port Input and outlet side equally sized

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.