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Author Topic: Facetron mast ball bearing  (Read 347 times)

roughcreations

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Facetron mast ball bearing
« on: March 02, 2020, 11:53:57 AM »
Hi, a basic question for Facetron owners out there, is the machine supposed to have a ball bearing sitting in the top cup-shaped indentation of the mast (see image of my machine below)? The micrometer adjuster in the mast sleeve pivots here. I was reading a post on another forum where someone mentioned the ball bearing, so it alerted me to a potential problem. If so, what size bearing goes in? I might have lost it when I removed my mast in the past...



Thanks,
RC.
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FlashGP

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Re: Facetron mast ball bearing
« Reply #1 on: March 02, 2020, 06:47:23 PM »
Hi Rough Creations,

Yes.  I read on the Facetron Users Facebook forum that it is a 6mm ball bearing.  Although it being an American machine, it wouldn't suprise me if the ball bearing was a 1/4 inch ball bearing.

Maybe Andrew knows the size, he is probably easier to contact than Brett.

Regards
Flash
Yours Sincerely
Flash (Gordon)

roughcreations

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Re: Facetron mast ball bearing
« Reply #2 on: March 02, 2020, 07:15:44 PM »
Thanks Flash, appreciate that info, I have been unknowingly cutting for quite some time (read - years) without a ball bearing in place I reckon. This might explain a little wander observed in the indicator dial gauge reading I see under certain situations, for example: when stopping to examine an individual facet when doing a pavilion, and then rotating the head and placing the facet back onto the lap in the same spot as before.

RoughCreations.
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Rusted

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Re: Facetron mast ball bearing
« Reply #3 on: March 03, 2020, 08:26:00 AM »
I reckon a bike shop (pushbike) should have that size ball.

roughcreations

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Re: Facetron mast ball bearing
« Reply #4 on: March 08, 2020, 12:12:46 PM »
Thanks,
For anyone reading this thread in future: the local bike shop was the go. I dropped in a 7/32" ball bearing, slightly smaller than a quarter inch (8/32") which would have been a bit tight.
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Bucket

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Re: Facetron mast ball bearing
« Reply #5 on: March 10, 2020, 03:30:02 PM »
Well I'll be buggered! Like roughcreations, I've been cutting for a while without one as well, looks like a trip down to the bike shop tomorrow for me!
Common sense isn't exactly common

roughcreations

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Re: Facetron mast ball bearing
« Reply #6 on: March 11, 2020, 09:19:30 PM »
I've heard that losing your mast ball is quite common for male cutters after a certain age.
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Bucket

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Re: Facetron mast ball bearing
« Reply #7 on: March 12, 2020, 01:41:14 PM »
It's not loosing the ball I'm more concerned about, it's loosing the mast!
Common sense isn't exactly common

FlashGP

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Re: Facetron mast ball bearing
« Reply #8 on: March 12, 2020, 09:15:05 PM »
Or worse still, bending it by having a stone catch on the lap and pull the quill through under the head.

It makes a bit of a racket and spins the head around a few times.  Luckily the stone stayed on the dop.
Yours Sincerely
Flash (Gordon)

Bucket

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Re: Facetron mast ball bearing
« Reply #9 on: March 15, 2020, 01:15:44 PM »
I'm currently directly in contact with Jarvi Manufacturing awaiting the official size that they use. I'll pass it on as soon as I get it.
Common sense isn't exactly common

roughcreations

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Re: Facetron mast ball bearing
« Reply #10 on: March 16, 2020, 11:20:10 AM »
Ok, thanks for that - probably worth getting the exact info for the records.
It seems strange that the Facetron user manuals have no mention of a bb there, you would think that they would go missing often, given that grease would make the bb stick to the centre of the inside of the sleeve, before detaching and rolling off to join wherever missing socks and biros live.
Rough Creations - Beauty from rough beginnings

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