Surface Grinder Wheel Vibration

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Subject Author Date
Surface Grinder Wheel Vibration Al 01-25-2008
Posted by Al on January 25, 2008, 2:47 pm
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I bought a 6 X 12 Boyar Schultz Manual Surface grinder and mounted an
ENCO 1/2 x 7 wheel. The wheel had some bad vibration so I replaced the
spindle bearings. I have three Enco wheels and some vibrate more than
others, the wheels have the letters BAL painted on them so I expected
that indicated they were balanced. I was a Tool & Die Maker in the
late 50's and spent a significant amount of time using the 6 X 12
Boyar Schultz manual grinder. I never experienced a vibration and am
not sure where to begin sorting out this problem. The ENCO Wheels were
not very expensive and I wonder if the problem is the inexpensive
wheel or the drive mechanism.
Any suggestions are appreciated.
Thanks ....Al Basham

Posted by Wes on January 25, 2008, 4:05 pm
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>I bought a 6 X 12 Boyar Schultz Manual Surface grinder and mounted an
>ENCO 1/2 x 7 wheel. The wheel had some bad vibration so I replaced the
>spindle bearings. I have three Enco wheels and some vibrate more than
>others, the wheels have the letters BAL painted on them so I expected
>that indicated they were balanced. I was a Tool & Die Maker in the
>late 50's and spent a significant amount of time using the 6 X 12
>Boyar Schultz manual grinder. I never experienced a vibration and am
>not sure where to begin sorting out this problem. The ENCO Wheels were
>not very expensive and I wonder if the problem is the inexpensive
>wheel or the drive mechanism.
>Any suggestions are appreciated.
>Thanks ....Al Basham

Is the spindle motor 3phase? Are you generating it with a static converter?

Wes

Posted by Grant Erwin on January 25, 2008, 4:05 pm
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Al wrote:

> I bought a 6 X 12 Boyar Schultz Manual Surface grinder and mounted an
> ENCO 1/2 x 7 wheel. The wheel had some bad vibration so I replaced the
> spindle bearings. I have three Enco wheels and some vibrate more than
> others, the wheels have the letters BAL painted on them so I expected
> that indicated they were balanced. I was a Tool & Die Maker in the
> late 50's and spent a significant amount of time using the 6 X 12
> Boyar Schultz manual grinder. I never experienced a vibration and am
> not sure where to begin sorting out this problem. The ENCO Wheels were
> not very expensive and I wonder if the problem is the inexpensive
> wheel or the drive mechanism.
> Any suggestions are appreciated.
> Thanks ....Al Basham

Try a new wheel? Jeez, wheels cost what, eight bucks? What did those spindle
bearings set you back? I remember doing the ones on my KO Lee, think they
were about $400 .. yow.

Grant

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Posted by Mark Rand on January 25, 2008, 8:08 pm
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> the wheels have the letters BAL painted on them so I expected
>that indicated they were balanced.

Wheels will generally need balancing after you first mount and dress them.
Does the grinder have balancing weights on the wheel arbour?


Mark Rand
RTFM

Posted by Martin H. Eastburn on January 25, 2008, 10:43 pm
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Mark -

Can you give a short description on how to do just the balancing
mode with the sliding weights on the spindle nut.

Martin

Martin H. Eastburn
@ home at Lions' Lair with our computer lionslair at consolidated dot net
TSRA, Endowed; NRA LOH & Patron Member, Golden Eagle, Patriot's Medal.
NRA Second Amendment Task Force Charter Founder
IHMSA and NRA Metallic Silhouette maker & member.
http://lufkinced.com/


Mark Rand wrote:
>
>> the wheels have the letters BAL painted on them so I expected
>> that indicated they were balanced.
>
> Wheels will generally need balancing after you first mount and dress them.
> Does the grinder have balancing weights on the wheel arbour?
>
>
> Mark Rand
> RTFM

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