just a quick one about the 1-1/4-inch 1/4-inch shank bit flush trim bit
with top and bottom bearings that gets unruly at full revs.
took off the end bearing and allen screw rev'd up to 23,000rpm and
no problem
with bearing back on all hell breaks loose
my guess is that the ball-bearings are piling up on one side and
cause things to get eccentric
I may try some bearing swapping if I'm really bored
On 2/20/2015 2:00 PM, Lew Hodgett wrote:
> "Electric Comet" wrote:
>
>> just a quick one about the 1-1/4-inch 1/4-inch shank bit flush trim
>> bit
>> with top and bottom bearings that gets unruly at full revs.
>>
>> took off the end bearing and allen screw rev'd up to 23,000rpm and
>> no problem
>>
>> with bearing back on all hell breaks loose
>>
>> my guess is that the ball-bearings are piling up on one side and
>> cause things to get eccentric
>>
>> I may try some bearing swapping if I'm really bored
> ---------------------------------------------------
> So replace the bearing.
>
> Lew
>
Get new bearings at the Auto Store. They have them or can order from
their supplier. We used FAGG in Disk Drives. Long lasting. Sealed.
Martin
On Friday, February 20, 2015 at 4:15:05 PM UTC-5, John McCoy wrote:
> -MIKE- <[email protected]> wrote in news:[email protected]:
>
> > On 2/20/15 9:25 AM, Electric Comet wrote:
> >> just a quick one about the 1-1/4-inch 1/4-inch shank bit flush trim bit
> >> with top and bottom bearings that gets unruly at full revs.
> >>
> >> took off the end bearing and allen screw rev'd up to 23,000rpm and
> >> no problem
> >>
> >> with bearing back on all hell breaks loose
> >>
> >> my guess is that the ball-bearings are piling up on one side and
> >> cause things to get eccentric
> >>
> >> I may try some bearing swapping if I'm really bored
> >>
> >
> > I sure wish you'd discover punctuation.
>
> Hey, he's got a period, a comma, and a 'postrophe in there.
> How many more punctuation do you want?
>
> John
A teacher asked his students to punctuate this sentence:
"Woman without her man is nothing."
The men all wrote, "Woman, without her man, is nothing."
The women all wrote, "Woman! Without her, man is nothing!"
"Electric Comet" wrote:
> just a quick one about the 1-1/4-inch 1/4-inch shank bit flush trim
> bit
> with top and bottom bearings that gets unruly at full revs.
>
> took off the end bearing and allen screw rev'd up to 23,000rpm and
> no problem
>
> with bearing back on all hell breaks loose
>
> my guess is that the ball-bearings are piling up on one side and
> cause things to get eccentric
>
> I may try some bearing swapping if I'm really bored
---------------------------------------------------
So replace the bearing.
Lew
Lew Hodgett wrote:
---------------------------------------------------
>> So replace the bearing.
>>
>> Lew
----------------------------------------
"Martin Eastburn" wrote:
>>
> Get new bearings at the Auto Store. They have them or can order
> from
> their supplier. We used FAGG in Disk Drives. Long lasting.
> Sealed.
--------------------------------------
It's a renewal part item for anybody selling router bits.
I picked up one at Harbor Freight.
You get two brg, screw and bushing as a kit.
Outa stock? Buy a complete bit for $5 and throw away the cutter.
Lew
On 2/20/2015 5:18 PM, Electric Comet wrote:
> On Fri, 20 Feb 2015 21:12:47 +0000 (UTC)
> John McCoy <[email protected]> wrote:
>
>>
>> Interesting. Sounds like a bad bearing. It could also
>> be that the hole in the bearing is larger than the screw
>> (i.e. it's not the right bearing for that bit) which is
>> allowing the bearing to shimmy around.
>>
>> It could also be that the hole for the screw is not
>> co-axial with the bit, forcing the bearing to be off-
>> center.
>
> visual inspection dont reveal anything
> will clean the bearing and apply some light oil
> may be a crappy bearing or simply wrong one for this application
>
> there should be no spacing between ball-bearings or it should
> have a bearing race or something to keep them from moving outward
> and/or together
>
> not sure the make it has yellow paint
>
>
>
>
>
>
>
>
>
VIPER if I remember correct.A BORG item years ago.
--
Jeff
Electric Comet <[email protected]> wrote in news:mc7js9$jik$2
@dont-email.me:
> just a quick one about the 1-1/4-inch 1/4-inch shank bit flush trim bit
> with top and bottom bearings that gets unruly at full revs.
>
> took off the end bearing and allen screw rev'd up to 23,000rpm and
> no problem
>
> with bearing back on all hell breaks loose
Interesting. Sounds like a bad bearing. It could also
be that the hole in the bearing is larger than the screw
(i.e. it's not the right bearing for that bit) which is
allowing the bearing to shimmy around.
It could also be that the hole for the screw is not
co-axial with the bit, forcing the bearing to be off-
center.
John
-MIKE- <[email protected]> wrote in news:[email protected]:
> On 2/20/15 9:25 AM, Electric Comet wrote:
>> just a quick one about the 1-1/4-inch 1/4-inch shank bit flush trim bit
>> with top and bottom bearings that gets unruly at full revs.
>>
>> took off the end bearing and allen screw rev'd up to 23,000rpm and
>> no problem
>>
>> with bearing back on all hell breaks loose
>>
>> my guess is that the ball-bearings are piling up on one side and
>> cause things to get eccentric
>>
>> I may try some bearing swapping if I'm really bored
>>
>
> I sure wish you'd discover punctuation.
Hey, he's got a period, a comma, and a 'postrophe in there.
How many more punctuation do you want?
John
On 2/20/2015 3:12 PM, John McCoy wrote:
> Electric Comet <[email protected]> wrote in news:mc7js9$jik$2
> @dont-email.me:
>
>> just a quick one about the 1-1/4-inch 1/4-inch shank bit flush trim bit
>> with top and bottom bearings that gets unruly at full revs.
>>
>> took off the end bearing and allen screw rev'd up to 23,000rpm and
>> no problem
>>
>> with bearing back on all hell breaks loose
>
> Interesting. Sounds like a bad bearing. It could also
> be that the hole in the bearing is larger than the screw
> (i.e. it's not the right bearing for that bit) which is
> allowing the bearing to shimmy around.
>
> It could also be that the hole for the screw is not
> co-axial with the bit, forcing the bearing to be off-
> center.
>
> John
>
Take the bearing off and screw back on the screw. See if it runs true.
Martin
On 2/20/15 9:25 AM, Electric Comet wrote:
> just a quick one about the 1-1/4-inch 1/4-inch shank bit flush trim bit
> with top and bottom bearings that gets unruly at full revs.
>
> took off the end bearing and allen screw rev'd up to 23,000rpm and
> no problem
>
> with bearing back on all hell breaks loose
>
> my guess is that the ball-bearings are piling up on one side and
> cause things to get eccentric
>
> I may try some bearing swapping if I'm really bored
>
I sure wish you'd discover punctuation.
--
-MIKE-
"Playing is not something I do at night, it's my function in life"
--Elvin Jones (1927-2004)
--
http://mikedrums.com
[email protected]
---remove "DOT" ^^^^ to reply
On Fri, 20 Feb 2015 21:12:47 +0000 (UTC)
John McCoy <[email protected]> wrote:
>
> Interesting. Sounds like a bad bearing. It could also
> be that the hole in the bearing is larger than the screw
> (i.e. it's not the right bearing for that bit) which is
> allowing the bearing to shimmy around.
>
> It could also be that the hole for the screw is not
> co-axial with the bit, forcing the bearing to be off-
> center.
visual inspection dont reveal anything
will clean the bearing and apply some light oil
may be a crappy bearing or simply wrong one for this application
there should be no spacing between ball-bearings or it should
have a bearing race or something to keep them from moving outward
and/or together
not sure the make it has yellow paint
On Fri, 20 Feb 2015 21:55:16 -0600
Martin Eastburn <[email protected]> wrote:
> Take the bearing off and screw back on the screw. See if it runs
> true.
no doesn't run true, no difference
wrong bearing for the application
-MIKE- wrote:
> On 2/20/15 9:25 AM, Electric Comet wrote:
>> just a quick one about the 1-1/4-inch 1/4-inch shank bit flush trim bit
>> with top and bottom bearings that gets unruly at full revs.
>>
>> took off the end bearing and allen screw rev'd up to 23,000rpm and
>> no problem
>>
>> with bearing back on all hell breaks loose
>>
>> my guess is that the ball-bearings are piling up on one side and
>> cause things to get eccentric
>>
>> I may try some bearing swapping if I'm really bored
>>
>
> I sure wish you'd discover punctuation.
>
>
Reminds me of the tales of Archy and Mehitabel.
--
GW Ross
My wife has a slight impediment in
her speech. Every now and then she
stops to breathe. - Jimmy