Nidec UltraFlo R40W 40mm x 56mm dual in-line counter-rotating cooling fans For fan series data in an Adobe Acrobat PDF file, click here.

Nidec UltraFlo brand name R40W Series
To see a dimension drawing, move your cursor to the series name or the picture of the fan. To see a performance graph, move the cursor to a model name below.
Dimension drawing for Nidec R40W UltraFlo DICR cooling fans
  Free-Running R40W12BUA5
Operating
Voltage
(V)		 Fraction
of Max.
Air Flow		 Fan
Speed
(rpm)		 Static
Pressure
(inwg)		 NPEL
(Bels)
13.8 100% 17810 0 6.9
80% 17670 0.51 7.0
20% 18120 1.29 7.3
12.0 100% 16000 0 6.8
80% 15890 0.42 6.9
20% 16630 0.88 6.9
7.0 100% 9840 0 5.5
80% 9870 0.14 5.7
20% 10110 0.34 5.8
Sound levels in the table are mean values, measured as the fans - without guards or other accessories - expel air from a test plenum on which they are mounted, using test methods and conventions prescribed by IPC-9591.
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Speed-Stable
Model*		 Air
Flow
(CFM)		 Max.
Static
Pressure
(inwg)		 Nominal
Voltage
(V)		 Voltage
Range
(V)		 Current
(A)		 Input
Power
(W)		 Sound Level Bearing Operating
Temp.
Min/Max
(°C)
Pressure
(dBA)		 NPEL
(IPC-
9591)
R40W12BGAC-01 33 1.95 12 7.0-13.8 1.75 21.0 64.0 — Ball -10/+70
R40W12BHAC-01 28 1.36 12 7.0-13.8 1.10 13.2 59.5 — Ball -10/+70
 ™ UltraFlo is a brand trademark of Nidec Corporation.
 *  Monitor and control options, designated by the last characters of model names, are decribed here.
Air performance graph for Nidec R40W12BGAC-01 UltraFlo cooling fan
Air performance graph for Nidec R40W12BHAC-01 UltraFlo cooling fan
R40W is also available as a series of free-running fans. To see descriptions of those alternative models, click here.
fans tube axial fans cooling fans 40mm fans computer fans case fans air movers dc fans 12V fans dual in-line counter-rotating fans DICRs R40W fans Nidec UltraFlo

R40W12BH R40W12BHAC R40W12BHAC-51 R40W12BHAC-52 R40W12BHAC-53 R40W12BHAC-54 R40W12BHAC-55 R40W12BHAC-56 R40W12BHAC-57 R40W12BHAC-58 R40W12BHAC-59 R40W12BHAC-60 R40W12BHAC-61 R40W12BHAC-62 R40W12BHAC-63 R40W12BHAC-64 R40W12BHAC-65

R40W12BG R40W12BGAC R40W12BGAC-51 R40W12BGAC-52 R40W12BGAC-53 R40W12BGAC-54 R40W12BGAC-55 R40W12BGAC-56 R40W12BGAC-57 R40W12BGAC-58 R40W12BGAC-59 R40W12BGAC-60 R40W12BGAC-61 R40W12BGAC-62 R40W12BGAC-63 R40W12BGAC-64 R40W12BGAC-65

R40W12BH R40W12BHAC R40W12BHAC-01 R40W12BHAC-02 R40W12BHAC-03 R40W12BHAC-04 R40W12BHAC-05 R40W12BHAC-06 R40W12BHAC-07 R40W12BHAC-08 R40W12BHAC-09 R40W12BHAC-10 R40W12BHAC-11 R40W12BHAC-12 R40W12BHAC-13 R40W12BHAC-14 R40W12BHAC-15

R40W12BG R40W12BGAC R40W12BGAC-01 R40W12BGAC-02 R40W12BGAC-03 R40W12BGAC-04 R40W12BGAC-05 R40W12BGAC-06 R40W12BGAC-07 R40W12BGAC-08 R40W12BGAC-09 R40W12BGAC-10 R40W12BGAC-11 R40W12BGAC-12 R40W12BGAC-13 R40W12BGAC-14 R40W12BGAC-15