HEG
Product characteristics
• Highly-flexible cardan shaft auxiliary coupling for I. C. engines
• Available in different elastomer hardness’s
• High torsional flexibility
• Excellent damping properties due to additional friction damping
• Reduction of torque peaks in the elastomer part
• Radial plain bearing in maintenance-free design
• Cardan shaft connection for usual designs
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Additional Information
Apart from transmitting the torque the demand on a torsionally flexible cardan shaft connecting coupling is higher
torsional flexibility to ensure that the main critical speed of the machine can be shifted far below the idle-running
speed.
BoWex-ELASTIC® type HEG has a maintenancefree plain bearing to absorb the radial loads produced by the
cardan shaft. Moreover, the coupling includes a friction disk which is prestressed axially by means of the
elastomer part. The elastomer part is produced from natural rubber during a vulcanizing process.
Due to the permanent friction the coupling has excellent damping properties, reducing the high alternating loads
arising in the coupling considerably when starting and passing through the resonance.
In addition the BoWex-ELASTIC® HEG shall have good damping properties in the resonant range, i. e. when
passing through the resonance, in order to keep the high coupling loads that arise as low as possible.
The elastomer part and the friction disk in the coupling operate in parallel with each other. The friction disk
reduces torque peaks at a high extent, i. e. converting into heat. The heat generated is dissipated through the
metallic components. As a consequence a heat accumulation in the elastomer part produced during the frequent
starting of the diesel engine and the resulting high load on the coupling is avoided. In this way the expected
lifetime of the coupling is extended considerably.
Couplings type BoWex-ELASTIC® HEG are supplied as an assembled, pre-set unit. After the coupling has been
mounted to the flywheel, the cardan shaft can be assembled.
Dimensions
