Does anyone know what this is /likely/ to be:

http://www.roksan.co.uk/roksan/roksanpage.php?pageno=6#

3in1, some grade of motor oil, some hybrid concoction?

Rob

On Sat, 14 Aug 2010 13:28:57 +0100, Rob wrote:

Does anyone know what this is /likely/ to be:

http://www.roksan.co.uk/roksan/roksanpage.php?pageno=6#

3in1, some grade of motor oil, some hybrid concoction?

Rob

Whatever they could buy for no more than a quid a litre.

d

"Don Pearce" wrote in message
...
On Sat, 14 Aug 2010 13:28:57 +0100, Rob wrote:

Does anyone know what this is /likely/ to be:

http://www.roksan.co.uk/roksan/roksanpage.php?pageno=6#

3in1, some grade of motor oil, some hybrid concoction?

Rob

Whatever they could buy for no more than a quid a litre.


I see it's unpriced on the website, presumably on the "if you have to ask
the price you can't afford it" principle.


David.

In message , David Looser
writes
"Don Pearce" wrote in message
...
On Sat, 14 Aug 2010 13:28:57 +0100, Rob wrote:

Does anyone know what this is /likely/ to be:

http://www.roksan.co.uk/roksan/roksanpage.php?pageno=6#

3in1, some grade of motor oil, some hybrid concoction?

Rob

Whatever they could buy for no more than a quid a litre.


I see it's unpriced on the website, presumably on the "if you have to ask
the price you can't afford it" principle.

I take that attitude at car boot sales. If there's no indication of a
price, unless I'm really desperate for an item, I certainly don't bother
to ask.
--
Ian

On Sat, 14 Aug 2010 15:40:38 +0100, "David Looser"
wrote:

"Don Pearce" wrote in message
...
On Sat, 14 Aug 2010 13:28:57 +0100, Rob wrote:

Does anyone know what this is /likely/ to be:

http://www.roksan.co.uk/roksan/roksanpage.php?pageno=6#

3in1, some grade of motor oil, some hybrid concoction?

Rob

Whatever they could buy for no more than a quid a litre.


I see it's unpriced on the website, presumably on the "if you have to ask
the price you can't afford it" principle.

Maybe I was being cynical and unfair. After all, it does have great
water-repellant properties. I know that is the first thing I would
look for in a turntable bearing lubricant.

d

On 14/08/2010 13:28, Rob wrote:
Does anyone know what this is /likely/ to be:

http://www.roksan.co.uk/roksan/roksanpage.php?pageno=6#

3in1, some grade of motor oil, some hybrid concoction?

I never found out what the right oil for a Garrard 401 was.
As the bearing is similar to a Roksan, according to the pdf on that page,
then I guess the oil will be about right too.
I thought for a plain spindle on top of a ball-bearing,
something heavy like EP90 gear oil would be best.

--
Eiron.

"Don Pearce" wrote in message
...
On Sat, 14 Aug 2010 13:28:57 +0100, Rob wrote:

Does anyone know what this is /likely/ to be:

http://www.roksan.co.uk/roksan/roksanpage.php?pageno=6#

3in1, some grade of motor oil, some hybrid concoction?

Rob

Whatever they could buy for no more than a quid a litre.

d

I remember years ago phoning round for some Linn oil. A HiFi store said they
had some and sent it to me FOC. Never did find out how much it would cost or
what it was made of. It's still in there now - haven't bothered since as it
don't get used much theses days. I think I might just do a service using an
ear bud remove the old oil and replace it with olive oil - and I'll let you
all know if it's still works in 6 months time:-)
John the West Ham fan

On Sat, 14 Aug 2010 17:20:36 +0100, Eiron wrote:

On 14/08/2010 13:28, Rob wrote:
Does anyone know what this is /likely/ to be:

http://www.roksan.co.uk/roksan/roksanpage.php?pageno=6#

3in1, some grade of motor oil, some hybrid concoction?

I never found out what the right oil for a Garrard 401 was.
As the bearing is similar to a Roksan, according to the pdf on that page,
then I guess the oil will be about right too.
I thought for a plain spindle on top of a ball-bearing,
something heavy like EP90 gear oil would be best.

When I had a Connoisseur BD1 - single ball bearing too - I found that
if I put in heavy gear oil, the spindle would remain floating on it
for several weeks, not touching the ball at all.

d

On 14/08/2010 17:20, Eiron wrote:
On 14/08/2010 13:28, Rob wrote:
Does anyone know what this is /likely/ to be:

http://www.roksan.co.uk/roksan/roksanpage.php?pageno=6#

3in1, some grade of motor oil, some hybrid concoction?

I never found out what the right oil for a Garrard 401 was.
As the bearing is similar to a Roksan, according to the pdf on that page,
then I guess the oil will be about right too.
I thought for a plain spindle on top of a ball-bearing,
something heavy like EP90 gear oil would be best.


I went the other way with my Thorens deck, and I used sewing machine
oil. Yes, I did need to top it up fairly regularly, but it did *seem* to
give less bearing noise off the platter than a heavier oil.

I also tried PTFE spray once, but wasn't so keen.

DH

David Harris wrote:

Does anyone know what this is /likely/ to be:

http://www.roksan.co.uk/roksan/roksanpage.php?pageno=6#

3in1, some grade of motor oil, some hybrid concoction?

I never found out what the right oil for a Garrard 401
was.
As the bearing is similar to a Roksan, according to the
pdf on that page,
then I guess the oil will be about right too.
I thought for a plain spindle on top of a ball-bearing,
something heavy like EP90 gear oil would be best.


I went the other way with my Thorens deck, and I used
sewing machine oil. Yes, I did need to top it up fairly
regularly, but it did *seem* to give less bearing noise
off the platter than a heavier oil.

I also tried PTFE spray once, but wasn't so keen.

Yes, it *is* actually important to use the right kind of
oil. The lubrication requirements of ball and plain bearings
are different, so most car or bike oils are unsuitable. The
problem here is that it's an odd application in a domestic
context. That's why the retail price is high.

Too thick, or too slippy like PTFE, STP, or molybdenum
disulphide, and the balls will skate. The surface of the oil
will be wavy so it can be a choppy ride. If a ball catches
up with its own bow wave it may briefly lock and judder.
Pressure can be great enough to crack the casing, although
not at turntable speeds.

Too runny and it won't maintain a film.

If it absorbs moisture then corrosion-erosion will lead to
early failure.

You need a thin or medium single-grade, thixotropic (or
"clingy"), water repellent, corrosion-inhibiting machine
oil, I would think. Best option, unless you already have
some of the right kind of oil, is the recommended oil from
the manufacturer, if you can get it. Maybe expensive for the
amount you get, but you'll only ever need a few drops. Share
with friends.

A plain bearing would be quieter but an oil pump would be a
problem, I suppose.

Ian