KRACHT - KM 2

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 hydraulkalry-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. That ensures a high level of volumetric and mechanical efficiency at every operating point. Multiple motor combinations are possible, as are mounting valves (pressure relief valves can be set to fixed or proportional values, directional control valves for switching the direction of rotation). A suction valve is available as the integrated valve.

Motors with one or two direction of rotation are available. The variant with two directions of rotations has connections of the same size and a leakage oil connection. These motors can be pressurised on the discharge side. The single direction of rotation variant is in feet a pump. Right-handed pumps means left-handed motors and vice versa. Lacking a leakage oil connection, these motors are internally connected to the discharge side and cannot be pressurised on that side. See the datasheet for the high pressure gear pumps KP 2 / KP 3 for dimensions and weights.

• Housing : cast iron / spheroidal cast iron
• Bearing : multi-compound plain bearing bushes
• Journals and gears  : case hardening steel ace. to DIN 17210 surface hardened and ground
• Seals :
• NBR rotary shaft lip-type seal and PU-pressure field sealing $ 90°C
• FKM rotary shaft lip-type seal and PU-pressure field sealing ft 100°C

Displacement: 20 … 62 cm³/r

Working pressure: … 315 bar

Viscosity: 10 ... 800 mm²/s

Media temperature: −20 … 150 °C

Pipe connection: flange

Fitting position: optional

Other characteristics: high-pressure