Hi,

I have a project which I would like to use a Kaydon ultra slim bearing
set up (Bore=approx 75mm crossection width =2.5mm bearing size 1.5mm.)

The price I was quoted for an ultra slim bearing with specs close to
the above is around 500bucks. (to me, thats a !!!!!I) This cost rules
out Kaydon for this part by a long way. I would like to find a source
for around 20bucks if possible. Its a light duty application. Anybody
know of a supplier?

all the best,

Steve

On Thu, 25 Oct 2007 14:24:30 -0700, Mike Johns
wrote:

Hi,

I have a project which I would like to use a Kaydon ultra slim bearing
set up (Bore=approx 75mm crossection width =2.5mm bearing size 1.5mm.)

The price I was quoted for an ultra slim bearing with specs close to
the above is around 500bucks. (to me, thats a !!!!!I) This cost rules
out Kaydon for this part by a long way. I would like to find a source
for around 20bucks if possible. Its a light duty application. Anybody
know of a supplier?

It's a long way from $500 to $20. Look at airframe control bearings
instead. It's been a long time since I've purchased any, but you may
be able to get under $100 for something in that size range.

Some examples:
http://www.alpinebearing.com/kpb-series-radial.asp

--
Ned Simmons

Ned Simmons wrote:

On Thu, 25 Oct 2007 14:24:30 -0700, Mike Johns
wrote:


Hi,

I have a project which I would like to use a Kaydon ultra slim bearing
set up (Bore=approx 75mm crossection width =2.5mm bearing size 1.5mm.)

The price I was quoted for an ultra slim bearing with specs close to
the above is around 500bucks. (to me, thats a !!!!!I) This cost rules
out Kaydon for this part by a long way. I would like to find a source
for around 20bucks if possible. Its a light duty application. Anybody
know of a supplier?


It's a long way from $500 to $20. Look at airframe control bearings
instead. It's been a long time since I've purchased any, but you may
be able to get under $100 for something in that size range.

Some examples:
http://www.alpinebearing.com/kpb-series-radial.asp


Alpine bearing seems to have good pricing. There were 250 bucks lower
in price on a set of tailstock bearings (530.00) for the Leblond lathe.
These were NN30xx series super precision bearings. and three angular
contact bearings 7305B series.

John

Mike Johns wrote:
Hi,

I have a project which I would like to use a Kaydon ultra slim bearing
set up (Bore=approx 75mm crossection width =2.5mm bearing size 1.5mm.)

The price I was quoted for an ultra slim bearing with specs close to
the above is around 500bucks. (to me, thats a !!!!!I) This cost rules
out Kaydon for this part by a long way. I would like to find a source
for around 20bucks if possible. Its a light duty application. Anybody
know of a supplier?

all the best,

Steve


skinny bearings tend to be very expensive

On Oct 25, 2:24 pm, Mike Johns wrote:
Hi,

I have a project which I would like to use a Kaydon ultra slim bearing
set up (Bore=approx 75mm crossection width =2.5mm bearing size 1.5mm.)

The price I was quoted for an ultra slim bearing with specs close to
the above is around 500bucks. (to me, thats a !!!!!I) This cost rules
out Kaydon for this part by a long way. I would like to find a source
for around 20bucks if possible. Its a light duty application. Anybody
know of a supplier?

all the best,

Steve

This sounds like you may need to look at something like furniture-
grade
"lazy-susan" type bearings, or maybe try finding something that has
been rendered surplus on eBay or some other place. As other posters
(and you) have noted, it's a huge difference between the Kaydon price
and what you want to pay. You could possibly build your own bearing
using loose balls and plates with v-grooves with some kind of ball
retainer. I have done that before in applications that are manual
spin,
low-speed, "don't worry about it" sorts of things. If you are looking
for
any speed and accuracy, though, I doubt that $20 will get you very
far,
regardless of the load/duty rating.

In article . com,
Mike Johns wrote:

I have a project which I would like to use a Kaydon ultra slim bearing
set up (Bore=approx 75mm crossection width =2.5mm bearing size 1.5mm.)

The price I was quoted for an ultra slim bearing with specs close to
the above is around 500bucks. (to me, thats a !!!!!I) This cost rules
out Kaydon for this part by a long way. I would like to find a source
for around 20bucks if possible. Its a light duty application. Anybody
know of a supplier?

Cut a couple of rings off of a solid sleeve type bearing, if it's light
duty - ie, oilite or MDS-Nylon. Or re-engineer so that you don't need it
so thin and don't cut rings. You're paying for micro-miniature ball
bearings (many small parts and fussy grinding) in the original price -
you can't afford those at the price you want to pay.

eg - MSC has 3" ID 3-3/16 OD iglide plastic bearings for $15.05, which
are 2" long - either cut off a ring of that, or change the design. Only
thing I find that comes close to your size and price, FYI.

If you need a stiffer bearing, they have bronze 3 ID x3-1/2 OD, by 4"
long for $50, which you could cut a bunch of rings off of. 3" is 76.2mm
ID since you seem to be thinking metrically.

--
Cats, coffee, chocolate...vices to live by