HDD Temperature

Hi

My original HDD in my Imac runs at at temperature of 59C (139F) (Hitachi HDS723020BLA642).

I was about to replace with a 6TB HDD from Western Digitial WD6001FZWX when I read some reviews about temperature issues, I am concerned that the max temperature for the new drive is 55C (131 F)

Ambient Air Temperature inside Imac is 26C (81 F)

http://www.wdc.com/wdproducts/library/SpecSheet/ENG/2879-771434.pdf

Could I ask what Hard Drives other people have used to replace their original?

Thanks in advance.

RK