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npro/Seal is the world leader in the design and manufacture of permanent bearing protection and complete shaft seals for rotating equipment. Since inventing the original Bearing Isolator in 1977 Inpro/Seal has maintained a leadership position in the niche markets they serve. Inpro/Seal's unique product lines increase MTBR and decrease downtime on multiple applications operating in a variety of industries. With over 30 years of knowledge and real world experience, our custom engineered solutions, same day shipments and localized sales force will provide you with the right technology, right when you need it.


4221-81st Avenue West
Rock Island, IL


New Inpro/Seal® Smart CDR™ Brings Intelligence to Shaft Grounding

Rock Island, Ill., USA - Inpro/Seal, a leader in shaft grounding solutions, announces the introduction of the Smart CDR, the latest development in shaft grounding technology.

The Smart CDR is an innovative condition monitoring system that provides users with instant feedback on the performance of their CDR® (Current Diverter Ring®) in diverting shaft currents away from bearings to ground.

Variable Frequency Drives (VFDs) are becoming the system of choice across a variety of industries due to their ability to reduce energy consumption and generate significant cost savings. However, these systems induce high-frequency voltages on the shaft that seek a path to ground, discharging through the motor's bearings or through the bearings of coupled equipment.

This discharge, called electrical discharge machining (EDM), causes fluting on the bearings and is a leading cause of premature bearing failure in VFD-driven motors. The CDR uses proven technology to divert these harmful shaft currents to ground.

Now, the Smart CDR provides a simple interface to alert users in real time if there is not optimal contact between grounding brushes and the shaft - preventing bearing failure. If contact has been interrupted, routine maintenance can be performed to return shaft grounding to peak performance.

For more information about the Inpro/Seal Smart CDR, visit www.inpro-seal.com/smartcdr.

For further information please email Inpro/Seal

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