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Knowledge You Can Build On — Est. 1998

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Eureka

Posts

Eureka

#1

Eureka

adrien coblentz

As someone who has been turning for some years, I finally decided that my 3" diameter grinding wheel should be replaced by an 8" one like the original.

Trying to keep the left wheel from turning by holding the nut on the right one with a wrench turns out to be ineffective: they turn independently. So unwrapping the right wheel is unnecessary.

Onward!!! Rube Goldberg style I set out to unscrew the left wheel. Took maybe half an hour before the notion came to me that maybe the nut had a left hand thread.

For other amateurs out there, be advised the right wheel has a right hand thread, but the one on the left has a left hand one. Saves time knowing this.

Re: Eureka

#2

Re: Eureka

john lucas

Yes, and I also wish they would either put a spindle lock on the grinders or flats on the shaft so you can put a wrench on to help get the nuts off.

Re: Eureka

#3

Re: Eureka

John K Jordan

>>Yes, and I also wish they would either put a spindle lock on the grinders or flats on the shaft so you can put a wrench on to help get the nuts off.

Well that's a good idea or two, and it can be added at home with a drill, mill, or grinder. Or what if they built a big hex socket into the ends of the shaft?

I always relied on a sharp strike with the palm on the wrench (in the proper direction!) against the inertia of the mass of the wheels and shaft and motor.

JKJ

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#4

Re: Eureka

Braden

I think my delta grinder has a hex hole in the end for just such.

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#5

Re: Eureka

Chuck Engstrom

Somewhere I got the impression that grinder nuts were not meant to be tightened very strongly lest an aggregate grinder wheel be cracked by excess pressure and come apart explosively at some unknown time in the future.

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#6

Re: Eureka

Bob Lalonde

My brother in law, the machinist suggested I try using a leather glove on the opposite hand, right in this case, when I couldn't get the left wheel off to install my new CBN wheel. Worked like a charm. Maybe it's because I live in Eureka!