Hi Chris, Dean, Thank you (Dean) for the link !I checked the link, and they look great, BUT I can't justify that much money at the moment, so ...
I searched Youtube for any DIY versions. There are a couple I watched:one is a single bearing design for most common blade hole diameter (and with magnets), and the other a multisize multibearing similar model.
A quick Amazon search showed the 7 bearing version that one is based on for $13.
I think I will build one, and try your 'electrical tape sensitivity test'. John On 4/17/24 17:28, Christopher Zach via Elec-trak wrote:
In 43 years of ET mowing (averaging 2 acres a week for 6 months of the year) I can only recall a single magnet failure. I use (2) tall motor decks; one for my lawn and another for vineyards.Makes sense. The tall thin motors have never had a magnet failure that I have seen (I have several cores for those) the problem was always the darn armature shorting somewhere and causing the motor to "cog".I'll take a look at the blade balance, I will say I do have more vibration than I should, but I think the bigger problem is whatever they used for adhesive is just wearing out.CI think the secret to my success is using a precision blade balancer. I use a MAG-1000 and it is amazing. https://www.magna-matic-direct.com/blade-balancers/ <https://www.magna-matic-direct.com/blade-balancers/> The deck was much quieter and I have to believe it extends bearing life as well. Blade straightness can also be verified.You may wonder how sensitive it is. In one of their videos they placed a sliver of paper on a 24” blade and the balancer moved.I wanted to see if my old unit was still up to the task. So I did a quick test yesterday and a placed a 1” long piece of electrical tape on an ET blade tip. The tape made the balancer move! I’ve found that even brand new OEM blades can have their balance improved with this unit.Yes, it is expensive but a wise investment in the long run. Regards, Dean Stuckmann 5432 County Road U Newton, WI 53063-9624 920-901-2288 -------------- next part -------------- An HTML attachment was scrubbed...URL: <http://cosmos.phy.tufts.edu/mhonarc/elec-trak/attachments/20240417/650cdbd2/attachment.htm>_______________________________________________ Elec-trak mailing list Elec-trak cosmos phy tufts edu https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak_______________________________________________ Elec-trak mailing list Elec-trak cosmos phy tufts edu https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak