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Gear hydraulic motor KM 2
high-pressure

gear hydraulic motor
gear hydraulic motor
gear hydraulic motor
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Characteristics

Technology
gear
Other characteristics
high-pressure
Pressure

Max.: 315 bar (4,569 psi)

Min.: 0 bar (0 psi)

Displacement

Max.: 62 cm³ (2 US fl oz)

Min.: 20 cm³ (1 US fl oz)

Description

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 peaks and continuous vibrations. Large-surface-dimensioned, PTFE-Pb coated, bronze plain bearings on steel backs in the housing and flanged cover support the micro-finish ground bearing journals of the gear, which comprises the driving shaft pinion and driven shaft pinion. To realise optimum running properties the tooth flanks of the gear, which are produced from case-hardened steel, are ground. The high number of teeth (z = 14) in combination with a tooth shape developed for the special requirements of the hydraulics as well as the optimal layout of the expansion slots in the trapped-oil area achieve a considerable reduction in the volume flow variation and thus the pressure pulsation. This leads to significantly lower noise level values in the motors or even in whole systems and machines. This functioning of the indispensable active axial-tolerance-allowance compensation is implemented by the slide plates located beside the gears. They have hydraulically-loaded pressure-fields, through which a compensation of the axial tolerance allowance is guaranteed at every operating pressure. The slide plates are structured to implement viscosity-independent play-compensation.

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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.