Packaging and Cooling

Advanced Bearing System Improves DC Axial Fan Performance and Reliability

CUI's Thermal Management Group today announced the introduction of its CFM-V line of dc axial fans that boasts superior performance and reliability compared to conventional sleeve bearing fans, thanks to its innovative omniCOOL™ system.

This advanced bearing design bridges the cost-performance gap between traditional sleeve and ball bearing fan technologies. Incorporating a magnetic structure that enables rotor-balancing to minimize tilt, wobble, and friction, the omniCOOL system allows for fan operation at any angle.

It also reduces the need for lubricant, further decreasing fan noise and friction. In addition, the bearing system extends operational life by utilizing a specially-hardened material that provides additional heat resistance and offers protection against any abrasion that may occur.

The CFM-V series with frame sizes from 40- to 120-mm delivers airflows ranging from 5.4 to 10.8 CFM in the 40mm series up to 138 CFM in the 120mm series.

Available with rated voltages of 5-, 12-, 24-, and 48-Vdc, all axial fans come as standard with auto restart protection and feature options for tachometer signal and rotation detector depending on the model. Static pressure values range from 0.04 up to 0.41 inch H2O with rated currents from 26mA to 958mA.

All models in the CFM-V series also carry UL/cUL 507 and TUV EN 60950-1 safety approvals while complying with EN 61000-6-1:2007 limits for EMI/EMC.

With typical MTBF ratings of 70,000 hours at 40 degrees C and multiple speed options ranging from 1700 to 8500 RPM, CUI's line of dc axial fans with the omniCOOL system provide the ideal mix of economy and performance for a variety of cooling needs, including telecommunications equipment, medical devices, and industrial applications.

The CFM-V series is available immediately with prices starting at $3.40 per unit at 100 pieces through distribution.

CUI, Inc.
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