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Thread: JET sanding spindle
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17th March 2021, 11:09 AM #1
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JET sanding spindle
I was fortunate to get a 2nd hand Jet JBOS-5 oscillating spindle sander recently.
Had a lot of trouble getting the worn sanding sleeves off the 4 spindles, ended up putting them in the freezer for 30 minutes and then sliding the sleeves off. That worked, except for a couple that had rust on the spindle, and the sleeve had to be torn off. Fortunatley it was only surface rust, and came off easily with a wire brush on the bench grinder.
The 5/8" sanding spindle had a strange slot , and the spare parts manual shows a 6 x 6 x 50 metal key fits in the slot. That key is missing.
Can anyone please tell me what is the function of the key is, and if I can use the spindle without it?
EDIT : Just measured the slot, it is 50 x 5 x 2.5 deep, different from the Spare Parts listing
P1370196 Large.jpgregards,
Dengy
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17th March 2021, 11:23 AM #2
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Any good bearing shop will sell square key steel. You can then cut it and file it carefully to fit.
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17th March 2021, 11:34 AM #3
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Thanks riverbuilder. Do you have any idea as to why the key is needed?
regards,
Dengy
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17th March 2021, 01:26 PM #4
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The key is not required for the 5/8" sleeves. They utilise the same size spindle for the 1 1/2" and 2" sleeves and it has the key in the spindle to drive the expanding rubber bushing.
Spindle.jpgDallas
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17th March 2021, 02:01 PM #5
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Thanks treecycle, that is a relief. Good exlanation, and again, a picture worth a 1,000 words.
I have not yet pulled the 1/2" and 2" spindles apart.
I am wondering why the key is 6 x 6 x 50 and the slot on my 5/8" is 5 x 2.5 x 50regards,
Dengy
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17th March 2021, 02:37 PM #6
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Just measured mine and it's definitely only a 5 x 5mm key.
Dallas
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17th March 2021, 02:57 PM #7
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Thanks Dallas, mine is only a 5 W x 2.5 D key. Weird. But I am not going to worry about it, as you said it is not needed on the 5/8” spindle
regards,
Dengy
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17th March 2021, 03:20 PM #8
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The keyway in the spindle would probably only be 2.5 deep but the key itself that fits into it is 5 x 5.
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17th March 2021, 03:22 PM #9
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Gotcha! thanks Dallas
regards,
Dengy
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