![]() Only five geometric dimensions need to be fed into the measuring unit and the machine is ready for use. A hard-bearing machine is generally more versatile and can handle pieces with greatly varying weights, because hard-bearing machines are measuring centrifugal forces and require only a one-time calibration. Both types of machines have various advantages and disadvantages. The suspension's displacement is dictated by the distance of the rotor's principal axis of inertia relative to the rotor's rotational axis defined by the rotor bearings. In a soft-bearing machine, balancing is done at a frequency higher than the resonance frequency of the suspension. Thus the suspension's resulting displacement is caused by the centrifugal force generated by the unbalance of the rotor. In a hard-bearing machine, balancing is done at a frequency lower than the resonance frequency of the suspension. The difference between them, however, is in the suspension and not the bearings. There are two main types of balancing machines, hard-bearing and soft-bearing. Along with phase information, the machine can determine how much and where to add or remove weights to balance the part. As the part is rotated, the vibration in the suspension is detected with sensors and that information is used to determine the amount of unbalance in the part. The unit under test is bolted to the platform and is rotated either with a belt-, air-, or end-drive. The machine usually consists of two rigid pedestals, with suspension and bearings on top supporting a mounting platform. ![]() Special Features: Includeswmoo moment weight-scale with internal calibration sliding weight and indicator unit.blades on-line system for moment weighing and blade distribution.includes pentium computer, color monitor, windows 98 or later and color printer.Two balancing masses (denoted m) used to balance a non-concentric rotating mass.Ī balancing machine is a measuring tool used for balancing rotating machine parts such as rotors for electric motors, fans, turbines, disc brakes, disc drives, propellers and pumps. General Characteristics Item Description: 0.500 in. General Characteristics Item Description: 10 mm to 160 mm range Overall Diameter: 49.5 millimeters nominal 6 meter long calble.ĮND Item Identification: Part of A/E40T-1 electro-optical system components test stand next higher assembly is the WM1 center of gravity weighing scale Special Features: Mechanical connection straight rod appxoimately 10MM long by 2.5MM dia with indent for coupling adapters, has 2 M5X8MM screw holes for mounting on base. diaĮnd Item Identification: Balancing mach mdl H4BU General Characteristics Item Description: 2.200 in. micro balancing machines models EU-2 and EU-3 General Characteristics Item Description: Lens mount retainer ring lens and lens assembly black finishĮnd Item Identification: Schenck trebel corp. General Characteristics Item Description: Has sliding door on track that isset into concrete floor, windows and inside light provided for observation General Characteristics Item Description: Brass sae 72 1/2 hard, cd plate, lg 0.625 in., W 0.188 in., thk 0.125 in. per support: 100 lbs average unbalance reduction ratio: 95 percent approx wt: 2000 lbs FSC 6635 Physical Properties Testing and Inspection MFG SKU
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