I'm trying to find SKF bearing information such as the fillet radius for the
housing and shafts. To date I've been pushed thru a membership process with
names and passwords that seems to fail all the time. I have other bearing
catalogs that are easy access. Is there a bearing cross reference that I
can use to avoid SKF and their mystical catalog process?

Stuart Fields wrote:
I'm trying to find SKF bearing information such as the fillet radius for the
housing and shafts. To date I've been pushed thru a membership process with
names and passwords that seems to fail all the time. I have other bearing
catalogs that are easy access. Is there a bearing cross reference that I
can use to avoid SKF and their mystical catalog process?



What site are you looking at because I can access all bearing
information I've looked at so far at http://www.skf.com . Selecting a
bearing gives me a drawing and dimensions including corner radii with no
need to long in.

"David Billington" wrote in message
...
Stuart Fields wrote:
I'm trying to find SKF bearing information such as the fillet radius for
the housing and shafts. To date I've been pushed thru a membership
process with names and passwords that seems to fail all the time. I have
other bearing catalogs that are easy access. Is there a bearing cross
reference that I can use to avoid SKF and their mystical catalog process?


What site are you looking at because I can access all bearing information
I've looked at so far at http://www.skf.com . Selecting a bearing gives me
a drawing and dimensions including corner radii with no need to long in.

David: Thanks for the response. I accessed the same site, selected
rolling bearings and input the number I took right off the bearing:
6203/C3. I get a table of numbers referenced to some d, c,e, fs with no
drawing to connect these numbers to the actual bearing. Further when I
selec shaft tolerances, where I would expect to see the fillet radius
information, I get some e7, c6 statements that I can't relate to
thousandsths or any other. I've yet to find the recommended fillet radius
for the 6203 bearing. Can you list the particular path that you took to
get a bearing with a drawing defining the numbering system they are using?
I've down loaded another bearing catalog: MRC Engineering Handbook and the
numbers just jump out at me with minimal searching.

Stuart Fields wrote:
"David Billington" wrote in message
...

Stuart Fields wrote:

I'm trying to find SKF bearing information such as the fillet radius for
the housing and shafts. To date I've been pushed thru a membership
process with names and passwords that seems to fail all the time. I have
other bearing catalogs that are easy access. Is there a bearing cross
reference that I can use to avoid SKF and their mystical catalog process?



What site are you looking at because I can access all bearing information
I've looked at so far at http://www.skf.com . Selecting a bearing gives me
a drawing and dimensions including corner radii with no need to long in.


David: Thanks for the response. I accessed the same site, selected
rolling bearings and input the number I took right off the bearing:
6203/C3. I get a table of numbers referenced to some d, c,e, fs with no
drawing to connect these numbers to the actual bearing. Further when I
selec shaft tolerances, where I would expect to see the fillet radius
information, I get some e7, c6 statements that I can't relate to
thousandsths or any other. I've yet to find the recommended fillet radius
for the 6203 bearing. Can you list the particular path that you took to
get a bearing with a drawing defining the numbering system they are using?
I've down loaded another bearing catalog: MRC Engineering Handbook and the
numbers just jump out at me with minimal searching.



Stuart,

I'm not sure you'll actually find the shaft dimensions but the bearing
details give the min radius for the bearing races so that'll determine
your shaft dims. Regarding getting to the data I just went to where I
normally go which is deep groove ballbearings such as
http://www.skf.com/portal/skf/home/p...&newlink=1_1_7
, click on "dimensions" link and you get a list of bearings, click on
the one you're looking for and you'll get a drawing with details such
as OD, ID, radii etc. As regards the e7, c6 etc do a search for "limits
and fits" as that info pertains to the shaft and housing diameter not
the radius you're looking for, the fits control how the bearing fits its
housing and the shaft it is fitted too, these details effect how the
bearing in held by the shaft and housing and also the internal running
clearances of the bearing.

In article ,
"Stuart Fields" wrote:

"David Billington" wrote in message
...
Stuart Fields wrote:
I'm trying to find SKF bearing information such as the fillet radius for
the housing and shafts. To date I've been pushed thru a membership
process with names and passwords that seems to fail all the time. I have
other bearing catalogs that are easy access. Is there a bearing cross
reference that I can use to avoid SKF and their mystical catalog process?


What site are you looking at because I can access all bearing information
I've looked at so far at http://www.skf.com . Selecting a bearing gives me
a drawing and dimensions including corner radii with no need to long in.

David: Thanks for the response. I accessed the same site, selected
rolling bearings and input the number I took right off the bearing:
6203/C3. I get a table of numbers referenced to some d, c,e, fs with no
drawing to connect these numbers to the actual bearing. Further when I
selec shaft tolerances, where I would expect to see the fillet radius
information, I get some e7, c6 statements that I can't relate to
thousandsths or any other. I've yet to find the recommended fillet radius
for the 6203 bearing. Can you list the particular path that you took to
get a bearing with a drawing defining the numbering system they are using?
I've down loaded another bearing catalog: MRC Engineering Handbook and the
numbers just jump out at me with minimal searching.

What browsers are the two of you using? I run into this all the time.
A site that looks crippled or empty in one browser works differently and
better with some other kind of browser.

Joe Gwinn

"David Billington" wrote in message
...
Stuart Fields wrote:
"David Billington" wrote in message
...

Stuart Fields wrote:

I'm trying to find SKF bearing information such as the fillet radius
for the housing and shafts. To date I've been pushed thru a membership
process with names and passwords that seems to fail all the time. I
have other bearing catalogs that are easy access. Is there a bearing
cross reference that I can use to avoid SKF and their mystical catalog
process?



What site are you looking at because I can access all bearing
information I've looked at so far at http://www.skf.com . Selecting a
bearing gives me a drawing and dimensions including corner radii with no
need to long in.


David: Thanks for the response. I accessed the same site, selected
rolling bearings and input the number I took right off the bearing:
6203/C3. I get a table of numbers referenced to some d, c,e, fs with no
drawing to connect these numbers to the actual bearing. Further when I
selec shaft tolerances, where I would expect to see the fillet radius
information, I get some e7, c6 statements that I can't relate to
thousandsths or any other. I've yet to find the recommended fillet
radius for the 6203 bearing. Can you list the particular path that you
took to get a bearing with a drawing defining the numbering system they
are using?
I've down loaded another bearing catalog: MRC Engineering Handbook and
the numbers just jump out at me with minimal searching.


Stuart,

I'm not sure you'll actually find the shaft dimensions but the bearing
details give the min radius for the bearing races so that'll determine
your shaft dims. Regarding getting to the data I just went to where I
normally go which is deep groove ballbearings such as
http://www.skf.com/portal/skf/home/p...&newlink=1_1_7
, click on "dimensions" link and you get a list of bearings, click on the
one you're looking for and you'll get a drawing with details such as OD,
ID, radii etc. As regards the e7, c6 etc do a search for "limits and fits"
as that info pertains to the shaft and housing diameter not the radius
you're looking for, the fits control how the bearing fits its housing and
the shaft it is fitted too, these details effect how the bearing in held
by the shaft and housing and also the internal running clearances of the
bearing.

David: I must be having a software problem. I tried your path and did not
get a drawing, but there was an open space that looked like there might be a
drawing allocated there. We acquired a couple of high speed, high
resolution (64 bit processors) machines that were used to produce some of
the special effects of Star Wars. I have had problems getting some of the
Flash Players to work with the 64 bit processors.
We have another couple of 32 bit computers here. I will have to find some
time to try it on one of those.
Thanks for the help. I don't know if I would have come to this point
without your assistance.

Joseph Gwinn wrote:
In article ,
"Stuart Fields" wrote:


"David Billington" wrote in message
...

Stuart Fields wrote:

I'm trying to find SKF bearing information such as the fillet radius for
the housing and shafts. To date I've been pushed thru a membership
process with names and passwords that seems to fail all the time. I have
other bearing catalogs that are easy access. Is there a bearing cross
reference that I can use to avoid SKF and their mystical catalog process?



What site are you looking at because I can access all bearing information
I've looked at so far at http://www.skf.com . Selecting a bearing gives me
a drawing and dimensions including corner radii with no need to long in.

David: Thanks for the response. I accessed the same site, selected
rolling bearings and input the number I took right off the bearing:
6203/C3. I get a table of numbers referenced to some d, c,e, fs with no
drawing to connect these numbers to the actual bearing. Further when I
selec shaft tolerances, where I would expect to see the fillet radius
information, I get some e7, c6 statements that I can't relate to
thousandsths or any other. I've yet to find the recommended fillet radius
for the 6203 bearing. Can you list the particular path that you took to
get a bearing with a drawing defining the numbering system they are using?
I've down loaded another bearing catalog: MRC Engineering Handbook and the
numbers just jump out at me with minimal searching.


What browsers are the two of you using? I run into this all the time.
A site that looks crippled or empty in one browser works differently and
better with some other kind of browser.

Joe Gwinn

I'm currently using Firefox 2.0.0.12

Stuart Fields wrote:
"David Billington" wrote in message
...

Stuart Fields wrote:

"David Billington" wrote in message
...


Stuart Fields wrote:


I'm trying to find SKF bearing information such as the fillet radius
for the housing and shafts. To date I've been pushed thru a membership
process with names and passwords that seems to fail all the time. I
have other bearing catalogs that are easy access. Is there a bearing
cross reference that I can use to avoid SKF and their mystical catalog
process?




What site are you looking at because I can access all bearing
information I've looked at so far at http://www.skf.com . Selecting a
bearing gives me a drawing and dimensions including corner radii with no
need to long in.


David: Thanks for the response. I accessed the same site, selected
rolling bearings and input the number I took right off the bearing:
6203/C3. I get a table of numbers referenced to some d, c,e, fs with no
drawing to connect these numbers to the actual bearing. Further when I
selec shaft tolerances, where I would expect to see the fillet radius
information, I get some e7, c6 statements that I can't relate to
thousandsths or any other. I've yet to find the recommended fillet
radius for the 6203 bearing. Can you list the particular path that you
took to get a bearing with a drawing defining the numbering system they
are using?
I've down loaded another bearing catalog: MRC Engineering Handbook and
the numbers just jump out at me with minimal searching.



Stuart,

I'm not sure you'll actually find the shaft dimensions but the bearing
details give the min radius for the bearing races so that'll determine
your shaft dims. Regarding getting to the data I just went to where I
normally go which is deep groove ballbearings such as
http://www.skf.com/portal/skf/home/p...&newlink=1_1_7
, click on "dimensions" link and you get a list of bearings, click on the
one you're looking for and you'll get a drawing with details such as OD,
ID, radii etc. As regards the e7, c6 etc do a search for "limits and fits"
as that info pertains to the shaft and housing diameter not the radius
you're looking for, the fits control how the bearing fits its housing and
the shaft it is fitted too, these details effect how the bearing in held
by the shaft and housing and also the internal running clearances of the
bearing.


David: I must be having a software problem. I tried your path and did not
get a drawing, but there was an open space that looked like there might be a
drawing allocated there. We acquired a couple of high speed, high
resolution (64 bit processors) machines that were used to produce some of
the special effects of Star Wars. I have had problems getting some of the
Flash Players to work with the 64 bit processors.
We have another couple of 32 bit computers here. I will have to find some
time to try it on one of those.
Thanks for the help. I don't know if I would have come to this point
without your assistance.



A direct link to the page I get for a 6203 is
http://www.skf.com/skf/productcatalo...did=1050010203

The actual drawing bit is

http://www.skf.com/skf/productcatalo...alse&lang =en

"Joseph Gwinn" wrote in message
...
In article ,
"Stuart Fields" wrote:

"David Billington" wrote in message
...
Stuart Fields wrote:
I'm trying to find SKF bearing information such as the fillet radius
for
the housing and shafts. To date I've been pushed thru a membership
process with names and passwords that seems to fail all the time. I
have
other bearing catalogs that are easy access. Is there a bearing cross
reference that I can use to avoid SKF and their mystical catalog
process?


What site are you looking at because I can access all bearing
information
I've looked at so far at http://www.skf.com . Selecting a bearing gives
me
a drawing and dimensions including corner radii with no need to long
in.

David: Thanks for the response. I accessed the same site, selected
rolling bearings and input the number I took right off the bearing:
6203/C3. I get a table of numbers referenced to some d, c,e, fs with no
drawing to connect these numbers to the actual bearing. Further when I
selec shaft tolerances, where I would expect to see the fillet radius
information, I get some e7, c6 statements that I can't relate to
thousandsths or any other. I've yet to find the recommended fillet
radius
for the 6203 bearing. Can you list the particular path that you took to
get a bearing with a drawing defining the numbering system they are
using?
I've down loaded another bearing catalog: MRC Engineering Handbook and
the
numbers just jump out at me with minimal searching.

What browsers are the two of you using? I run into this all the time.
A site that looks crippled or empty in one browser works differently and
better with some other kind of browser.

Joe Gwinn

Joe: I'm using Microsoft Internet Explorer. www.excite.com

Stu

"David Billington" wrote in message
...
Stuart Fields wrote:
"David Billington" wrote in message
...

Stuart Fields wrote:

"David Billington" wrote in message
...


Stuart Fields wrote:


I'm trying to find SKF bearing information such as the fillet radius
for the housing and shafts. To date I've been pushed thru a
membership process with names and passwords that seems to fail all
the time. I have other bearing catalogs that are easy access. Is
there a bearing cross reference that I can use to avoid SKF and their
mystical catalog process?




What site are you looking at because I can access all bearing
information I've looked at so far at http://www.skf.com . Selecting a
bearing gives me a drawing and dimensions including corner radii with
no need to long in.


David: Thanks for the response. I accessed the same site, selected
rolling bearings and input the number I took right off the bearing:
6203/C3. I get a table of numbers referenced to some d, c,e, fs with
no drawing to connect these numbers to the actual bearing. Further
when I selec shaft tolerances, where I would expect to see the fillet
radius information, I get some e7, c6 statements that I can't relate to
thousandsths or any other. I've yet to find the recommended fillet
radius for the 6203 bearing. Can you list the particular path that
you took to get a bearing with a drawing defining the numbering system
they are using?
I've down loaded another bearing catalog: MRC Engineering Handbook
and the numbers just jump out at me with minimal searching.



Stuart,

I'm not sure you'll actually find the shaft dimensions but the bearing
details give the min radius for the bearing races so that'll determine
your shaft dims. Regarding getting to the data I just went to where I
normally go which is deep groove ballbearings such as
http://www.skf.com/portal/skf/home/p...&newlink=1_1_7 ,
click on "dimensions" link and you get a list of bearings, click on the
one you're looking for and you'll get a drawing with details such as
OD, ID, radii etc. As regards the e7, c6 etc do a search for "limits and
fits" as that info pertains to the shaft and housing diameter not the
radius you're looking for, the fits control how the bearing fits its
housing and the shaft it is fitted too, these details effect how the
bearing in held by the shaft and housing and also the internal running
clearances of the bearing.


David: I must be having a software problem. I tried your path and did
not get a drawing, but there was an open space that looked like there
might be a drawing allocated there. We acquired a couple of high
speed, high resolution (64 bit processors) machines that were used to
produce some of the special effects of Star Wars. I have had problems
getting some of the Flash Players to work with the 64 bit processors.
We have another couple of 32 bit computers here. I will have to find
some time to try it on one of those.
Thanks for the help. I don't know if I would have come to this point
without your assistance.


A direct link to the page I get for a 6203 is
http://www.skf.com/skf/productcatalo...did=1050010203

The actual drawing bit is

http://www.skf.com/skf/productcatalo...alse&lang =en

David: I tried both links and still can't find the fillet radius call outs.
There are no arrows indicating the radius on the inner or outer races that
have to interface with the shaft or housing. I get some funny numbers
expressed as numbers like: 1,6 I have never experienced this numbering
system before. My MRC Engineering handbook is much easier to negotiate. I
can't imagine that it should be this hard to navigate thru their catalog. I
must be doing something wrong that I can't find.

On 2009-03-16, Stuart Fields wrote:

"David Billington" wrote in message
...

[ ... ]

I'm not sure you'll actually find the shaft dimensions but the bearing
details give the min radius for the bearing races so that'll determine
your shaft dims. Regarding getting to the data I just went to where I
normally go which is deep groove ballbearings such as
http://www.skf.com/portal/skf/home/p...&newlink=1_1_7
, click on "dimensions" link and you get a list of bearings, click on the
one you're looking for and you'll get a drawing with details such as OD,
ID, radii etc. As regards the e7, c6 etc do a search for "limits and fits"
as that info pertains to the shaft and housing diameter not the radius
you're looking for, the fits control how the bearing fits its housing and
the shaft it is fitted too, these details effect how the bearing in held
by the shaft and housing and also the internal running clearances of the
bearing.

David: I must be having a software problem. I tried your path and did not
get a drawing, but there was an open space that looked like there might be a
drawing allocated there. We acquired a couple of high speed, high
resolution (64 bit processors) machines that were used to produce some of
the special effects of Star Wars. I have had problems getting some of the
Flash Players to work with the 64 bit processors.
We have another couple of 32 bit computers here. I will have to find some
time to try it on one of those.

O.K. Looking at the site, you need to both have javascript
turned on (I have it turned off by default, but can turn it on on a
site-by-site basis), and you need to enable "popups" in general for the
site as well. The usual selection of "block unwanted popups" kills what
it offers.

I'm using Opera as a browser on a 64-bit UltraSPARC machine from
Sun, FWIW. Whether you have that kind of control on a site-by-site
basis with your browser I don't know. It appears that you're running
Windows, so I can't predict what you'll get.

Flash (which works fine on the 64-bit UltraSPARC as long as they
don't upgrade the version again) is not needed for this site.

Enjoy,
DoN.

--
Email: | Voice (all times): (703) 938-4564
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---

On Mon, 16 Mar 2009 17:25:54 -0700, "Stuart Fields"
wrote:


"David Billington" wrote in message
.. .

A direct link to the page I get for a 6203 is
http://www.skf.com/skf/productcatalo...did=1050010203

The actual drawing bit is

http://www.skf.com/skf/productcatalo...alse&lang =en

David: I tried both links and still can't find the fillet radius call outs.
There are no arrows indicating the radius on the inner or outer races that
have to interface with the shaft or housing. I get some funny numbers
expressed as numbers like: 1,6 I have never experienced this numbering
system before. My MRC Engineering handbook is much easier to negotiate. I
can't imagine that it should be this hard to navigate thru their catalog. I
must be doing something wrong that I can't find.


Many europeans express a decimal point by using a comma. In your
example above 1,6 is the same as 1.6
On the SKF site there is no arrow designating a radius, the "r" is
merely near the designated edge.

Looking at
http://www.skf.com/skf/productcatalogue/Forwarder?action=PPP&lang=en&imperial=false&window Name=null&perfid=105001&prodid=1050010203
for the 6303, I would interpret the left hand drawing as relating to
the bearing itself, and the right hand as relating to the housing &
shaft.
If that is correct, your housing & shaft should both have a max radius
of 0.6mm whereas the bearing has a maXx of 1.2. This will ensure there
is always a positive clearance.
HTH.

--
Regards
Malcolm
Remove sharp objects to get a valid e-mail address

On 2009-03-17, Stuart Fields wrote:

[ ... ]

David: I tried both links and still can't find the fillet radius call outs.
There are no arrows indicating the radius on the inner or outer races that
have to interface with the shaft or housing. I get some funny numbers
expressed as numbers like: 1,6 I have never experienced this numbering
system before.

In various parts of Europe and the UK, it is common to use a
comma where we would use a period -- as the radix point (decimal point),
and periods (if present) as grouping characters, so what we would write
as "1,000,000.01", they would write as "1.000.000,01", so your "1,6"
would be most likely 1.6 mm

My MRC Engineering handbook is much easier to negotiate. I
can't imagine that it should be this hard to navigate thru their catalog. I
must be doing something wrong that I can't find.

Everything is in metric units, perhaps?

Enjoy,
DoN.

--
Email: | Voice (all times): (703) 938-4564
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---

On Tue, 17 Mar 2009 17:50:18 +1300, Malcolm Moore
wrote:

Many europeans express a decimal point by using a comma. In your
example above 1,6 is the same as 1.6

It's not 'Europeans' it's an ISO standard, ISO being the
*International* Standards Organisation, ANSI (and Standards New
Zealand) being member bodies of ISO

http://en.wikipedia.org/wiki/Countries_in_International_Organization_for_Standa rdization

Yes, using commas for decimal points is loopy but the rest of the
metric planet (outside the USA) in the Engineering profession have
been doing it that way and have been for many, many years - The ISO
standard has been in place for around 20 years although places like
the UK only adopted it as a national standard in 2002.

Along with other number formatting principles inherent in the standard
there should be no ambiguity, nor misreading of a drawing due to a
speck of ink or a badly placed fold.


--

On 18 Mar 2009 01:12:06 GMT, "DoN. Nichols"
wrote:

On 2009-03-17, Stuart Fields wrote:

[ ... ]

David: I tried both links and still can't find the fillet radius call outs.
There are no arrows indicating the radius on the inner or outer races that
have to interface with the shaft or housing. I get some funny numbers
expressed as numbers like: 1,6 I have never experienced this numbering
system before.

In various parts of Europe and the UK, it is common to use a
comma where we would use a period -- as the radix point (decimal point),
and periods (if present) as grouping characters, so what we would write
as "1,000,000.01", they would write as "1.000.000,01", so your "1,6"
would be most likely 1.6 mm

In the UK in common usage we have *never* used the comma for the
decimal point, nor have we ever used the decimal point as a thousand
separator - in all respects out number formatting is the same as that
used in the US - except that recently and *only* in the Engineering
field we have moved to ISO formatting for numbers on drawings. (see
below)

Historically mainland Europeans have routinely used commas and decimal
points everywhere to the point of utter confusion, if you play around
with the country settings in windows you get a basic idea of this
mess!

The ISO standard for engineering drawings uses grouping to remove any
ambiguity so ...

1,000,000.01 in your example above would be written as 1 000 000,01


--

On 2009-03-19, Mike wrote:
On 18 Mar 2009 01:12:06 GMT, "DoN. Nichols"
wrote:

On 2009-03-17, Stuart Fields wrote:

[ ... ]

David: I tried both links and still can't find the fillet radius call outs.
There are no arrows indicating the radius on the inner or outer races that
have to interface with the shaft or housing. I get some funny numbers
expressed as numbers like: 1,6 I have never experienced this numbering
system before.

In various parts of Europe and the UK, it is common to use a
comma where we would use a period -- as the radix point (decimal point),
and periods (if present) as grouping characters, so what we would write
as "1,000,000.01", they would write as "1.000.000,01", so your "1,6"
would be most likely 1.6 mm

In the UK in common usage we have *never* used the comma for the
decimal point, nor have we ever used the decimal point as a thousand
separator - in all respects out number formatting is the same as that
used in the US - except that recently and *only* in the Engineering
field we have moved to ISO formatting for numbers on drawings. (see
below)

O.K. But I have seen it in an astronomical work from the UK
back around 1965 or so.

Historically mainland Europeans have routinely used commas and decimal
points everywhere to the point of utter confusion, if you play around
with the country settings in windows you get a basic idea of this
mess!

No Windows here, so I can't do that. :-)

The ISO standard for engineering drawings uses grouping to remove any
ambiguity so ...

1,000,000.01 in your example above would be written as 1 000 000,01

Hmm ... to *me* that would increase the chance for ambiguity, if
it followed another number without a decimal fraction part.

Enjoy,
DoN.

--
Email: | Voice (all times): (703) 938-4564
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---

On Wed, 18 Mar 2009 16:26:06 +0000, Mike wrote:

On Tue, 17 Mar 2009 17:50:18 +1300, Malcolm Moore
wrote:

Many europeans express a decimal point by using a comma. In your
example above 1,6 is the same as 1.6

It's not 'Europeans' it's an ISO standard, ISO being the
*International* Standards Organisation, ANSI (and Standards New
Zealand) being member bodies of ISO

http://en.wikipedia.org/wiki/Countries_in_International_Organization_for_Standa rdization

I don't doubt that such an ISO standard exists. However, just because
Standards NZ (for example) is a member of ISO does not mean that the
ISO standard is automatically adopted for use.

Yes, using commas for decimal points is loopy but the rest of the
metric planet (outside the USA) in the Engineering profession have
been doing it that way and have been for many, many years - The ISO
standard has been in place for around 20 years although places like
the UK only adopted it as a national standard in 2002.

Not all parts of the metric planet outside the USA use the comma as a
decimal point, for example Aust & NZ. I wonder if any UK adoption is
a result of EU harmonisation. Having said that. I have recent drawings
from UK manufacturers that still use the full stop.

Along with other number formatting principles inherent in the standard
there should be no ambiguity, nor misreading of a drawing due to a
speck of ink or a badly placed fold.

The electronics industry often uses the multiplier to avoid such
problems. eg a 2.2nF capacitor is written as 2n2 The F is usually
implied by the capacitor symbol. Likewise 2k2 for a 2.2kohm resistor
etc.

--
Regards
Malcolm
Remove sharp objects to get a valid e-mail address

On Fri, 20 Mar 2009 00:28:45 +1300, Malcolm Moore
wrote:

On Wed, 18 Mar 2009 16:26:06 +0000, Mike wrote:

On Tue, 17 Mar 2009 17:50:18 +1300, Malcolm Moore
wrote:

Many europeans express a decimal point by using a comma. In your
example above 1,6 is the same as 1.6

It's not 'Europeans' it's an ISO standard, ISO being the
*International* Standards Organisation, ANSI (and Standards New
Zealand) being member bodies of ISO

http://en.wikipedia.org/wiki/Countries_in_International_Organization_for_Standa rdization

I don't doubt that such an ISO standard exists. However, just because
Standards NZ (for example) is a member of ISO does not mean that the
ISO standard is automatically adopted for use.

Absolutely, and as far as Brits are concerned the areas BS 8888 (our
implementation of the ISO) is applied to are very limited, they
certainly don't cover everyday life!

Yes, using commas for decimal points is loopy but the rest of the
metric planet (outside the USA) in the Engineering profession have
been doing it that way and have been for many, many years - The ISO
standard has been in place for around 20 years although places like
the UK only adopted it as a national standard in 2002.

Not all parts of the metric planet outside the USA use the comma as a
decimal point, for example Aust & NZ. I wonder if any UK adoption is
a result of EU harmonisation. Having said that. I have recent drawings
from UK manufacturers that still use the full stop.

Not really, unless you were involved in current engineering projects
you'd use the same separators as the USA, OZ and NZ. Thinking back the
first time I ever saw it used would be with Rotring ink drawing pens
in the mid 1970's. They wouldn't be marked 0.5mm or 0.7mm but 0,7 and
0,5 So the Germans were certainly using that format 35 ish years ago.

But just like the screwups with metric and imperial, this new format
is I fear a disaster waiting to happen, it 'fixed' a problem that
maybe we once had with bad dyeline prints. In use it really is a
complete pain in the arse especially if you have a mix of old and new
drawings. For the Germans, the Swiss, the French, the Italians and
the Spanish it will be a breeze. For everyone else...

Along with other number formatting principles inherent in the standard
there should be no ambiguity, nor misreading of a drawing due to a
speck of ink or a badly placed fold.

The electronics industry often uses the multiplier to avoid such
problems. eg a 2.2nF capacitor is written as 2n2 The F is usually
implied by the capacitor symbol. Likewise 2k2 for a 2.2kohm resistor
etc.

That is sensible, but more recently surface mount devices have ended
up with some of the most obscure coding on the planet, to such an
extent that there are many websites to decode the markings.

Twenty, thirty or forty years ago it was easy to prototype a circuit
design either with a ratsnest or a prototyping board, now it requires
near perfect eyesight, hot air tools, tweezers and masses of lighting.
I've a couple of kits that use some surface mount kit. I had intended
doing them over the winter but it was hopeless even with a really good
illuminated magnifier so I'm waiting for a bright sunny day - on the
current trend we've had our summer two days this week, now its another
11 months of rain


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