New Ware
Maintenance in Vereeniging
www.new-ware.co.za
Address
55 Eloff street. Walkerville. Vereeniging. Gauteng. 1876Are you the owner or manager of this company?
What you should know about New Ware
Factories in Sweden and India enabling the total production of all SPM products. Customer training programs available in most industrialized countries. The headquarters of the SPM group are situated in Strängnäs, Sweden where also the R & D, the main part of the manufacturing and sales support takes place. Here is also the base of the Swedish sales organization. Production The Swedish plant has a fully equipped factory and produce the full product range. The international sales organization is also using these facilities for training the personnel. On sites, where a customer wants to use his own personnel for the installation work, SPM can assist with supervisors. For each application, you can select the most cost-effective method which meets the technical requirements. The types of mechanical faults which can occur on a given machine are well known to your maintenance personnel. It requires little input data and is fast and easy to apply. With industrial condition monitoring, a main cost factor lies in extracting sensible condition information from raw data. Automatic condition evaluation is an integral part of SPM instruments. SPM is an abbreviation for the Shock Pulse Method, which is a patented technique for using signals from rotating rolling bearings as the basis for efficient condition monitoring of machines. From the innovation of the method in 1969 it has now been further developed and broadened and is now a worldwide accepted philosophy for condition monitoring of rolling bearings and machine maintenance. Processing shock pulse signals A shock pulse transducer reacts with a large amplitude oscillation to the weak shock pulses, because it is excited at its resonance frequency of 32 kHz. The first frame shows the symbol for a transducer and, below, the vibration signal from the machine, with superimposed transients at the resonance frequency, caused by shock pulses. The second frame shows the electric filter which passes a train of transients at 32 kHz. The last frame shows the converted shock pulse signal from the bearing, now consisting of a rapid sequence of stronger and weaker electric pulses. Shock pulse patterns The filtered transducer signal reflects the pressure variation in the rolling interface of the bearing. When the oil film in the bearing is thick, the shock pulse level is low, without distinctive peaks. Measuring Operating Condition The Shock Pulse meters measure the shock signal on a decibel scale, at two levels. It needs input data defining the bearing type (ISO number) and the rolling velocity (RPM and bearing diameter). Surface damages in a bearings causes a large increase in shock pulse strength, combined with a marked change in the characteristics between stronger and weaker pulses. The evaluation is based on international industrial standard.
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