How to replace DT750 DT700 DT850 bearings

by tecdux | January 28, 2013 | (8) Posted in Tips

I've done a video showing me disassembling the DT750, changing bearings and then reassembling it:

I was getting lots of vibrations from my Hextronik DT750 even after balancing it and using balanced props. I replaced the bearings and now the motors are like new! 

The steps for DT700 and DT850 are similar



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COMMENTS

PabloJaime on January 29, 2013
Nice tip!!!
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tecdux on January 30, 2013
Thanks! ;)
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mdrm on January 29, 2013
What bearings are used??
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tecdux on January 30, 2013
HK450V2 Bearing (8x4x3mm)
Internal diameter: 4
External diameter: 8
Height: 3
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tecdux on January 30, 2013
http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=11521
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colorex on February 3, 2013
Is that listing for 1 or 4 bearings?
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tecdux on February 4, 2013
4 bearings ;)
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sailorJohn on March 29, 2013
My bearing (Rear) did not come out easly,took it out in pieces. Motor runs but is suspect.Himax 850
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tecdux on March 31, 2013
I had some bearings with this problem too, I used a screwdriver to take them out ;)
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danallen82 on July 9, 2013
Would you consider using another bearing from the start? Like a high end japanese bearing?

It seems these motors are plagued by that issue.
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Budge72 on July 13, 2013
It was recommended on another thread about this issue to find some Boca Bearings and give them a try. I plan to oil my original bearings by soaking them overnight . If those don't perform, I found some Boca Bearings at my local hobby store for $1.50 each.
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tecdux on July 14, 2013
yes, boca bearings is an alternative
i searched for skf bearings but unfortunatelly they don't have this size
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tecdux

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How to replace DT750 DT700 DT850 bearings