Hydrodynamic Bearing Apparatus

Hydrodynamic Bearing Apparatus

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Product Description

Hydrodynamic Bearing Apparatus

Technical Description of Hydrodynamic Bearing Apparatus

The behaviour of a classical journal bearing with hydrodynamic lubrication can be investigated with the apparatus .The experimental capability ranges from the measurement of friction torque under load, to determine the pressure distribution in a journal bearing, to plot a locus curve of a journal and to determine the bearing attitude for different conditions of load and speed. The radial load of max. 500N is adjusted manually with a hand wheel. The drive is an asynchronous motor with frequency converter. All variables (speed, load, friction torque, oil supply pressure, oil peak pressure, oil temperature, X-displacement, Y-displacement) are indicated on 4-digit displays. Five different journals are used to examine bearing clearance. X and Y positions are measured using inductive displacement sensors. The friction torque is measured by means of a lever arm equipped with an electronic force sensor.

Specification of Hydrodynamic Bearing Apparatus

 

  • Mobile unit to investigate friction in a hydrodynamically lubricated journal bearing
  • Journal of a shaft: nominal diameter 50mm, width of bearing shell: 20mm
  • Max. radial bearing load: 500N
  • Drive motor: 0.37kW, max. 1500rpm
  • Determination of friction torque with strain gauge force sensor and lever arm
  • Electronic sensors and digital displays for: speed, oil temperature, oil pressure (supply and peak), friction torque, displacement in X- and Y-direction

 

Technical Data of Hydrodynamic Bearing Apparatus

Journal of a shaft

 

  • Nominal diameter d: 50mm

 

Bearing clearance

 

  • 0.035; 0.055; 0.075; 0.095; 0.2mm

 

Drive

 

  • 3-phase asynchronous motor with frequency

 

Converter

 

  • Power output: 0.37kW
  • Speed: 0...1500rpm

 

 

  • Speed measurement: optical sensor
  • Max. friction torque: 0...1Nm
  • Max. radial load: 0...500N
  • Oil pressure measurement range: 0...10bar
  • Oil supply pressure: min. 3bar
  • Oil temperature measurement with RTD (PT100)

 

Dimensions and Weight of Hydrodynamic Bearing Apparatus

 

  • l x w x h : 1000 x 750 x 1580 mm
  • Weight : approx. 200 kg

 


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