lowprofile

A couple of months ago I read about the shortening supply of the Nachi bearing, #45BG07S5-2DL, and decided to pick one up just in case mine should fail. The dimensions of the bearing are 75mm x 45mm x 32mm (outer, inner, width).
I located this seller on Ebay and decided it was worth the gamble to deal with an overseas seller: http://cgi.ebay.com/ebaymotors/OEM-M...Q5fAccessories

I didn't post any of this as I'm not 100% positive that this is an authentic Nachi bearing, I'll let you decide. When the day comes that I need to replace my bearing, I will post any issues if they should occur. I will include some pics and explain further.
First red flag for me was that is was shipped from Taiwan, though I knew this prior to purchasing. The other red flag was that the seals are black as opposed to the orange normally seen on Nachi bearings in this size.
On the plus side, the box appears authentic and was sealed with the clear Nachi tape. The bearing seals also indicate that this is a "DL" as stated on the sealed box. If you look at the cover on the box, there is a 6 digit code on the lower right side. Anytime time I see a 6 or 4 digit code I always think date code. I believe this code is in year/month/day format, however that is just a guess. The price was $90 shipped to my door.
Any thoughts, comments, or insight is appreciated.

http://s760.photobucket.com/albums/x...Nachi005rs.jpg

http://i760.photobucket.com/albums/x...g?t=1272379062

http://i760.photobucket.com/albums/x...g?t=1272379106

Vic55

The other thread was closed for non sponsor advertising... this is ok as a discussion but no non sponsor can come and post their products, website, links, etc.


Discuss away!

lowprofile

Thanks Vic.

So what do you think, real deal or good copy?

pearlpower

Bearings are legit and made by two companies. Nachi and DAT. DST bearings are suppose to be a better bearing vs the DL. They can be had for as little as $25.00 each through various overseas sources, shipping is what kills you.

lowprofile

I was under the impression that DST and DL only refer to the seal on the bearing. Also, that the DST is more common in A/C applications.

OXOJE55

How much are they?

reitmeid

DL has 2 seal lips, DST has 3 seal lips(I don't think the 3rd lip will slow us down that much). see pic

I ordered one from here. The guy said it was same bearing as 45BG07S5G-DL
http://bearingsdirect.com/store/inde..._detail&p=4314

pearlpower

They are both listed as AC bearings on the Nachi spec sheets. The DST seal is 'suppose' to be better.
I purchased several Nachi and DAT bearings. My first Nachi bearing seal failed-DL. It was possibly over filled with grease is what I was told by an bearing expert. So I replaced it with a DAT bearing and it has been on there since. Others have used the DL bearings with no issue so I think it was just the one bearing I received.

pearlpower

Actually what was explained to me is that the DL and DST are both 2 seals, one on each side. The difference is how they seal. There is a Nachi spec sheet to confirm the bearings seal differently. I dissected my old DL seal and it is just a regular seal, no double seal.

reitmeid

Check this picture out:


DL bzw. DST sind gleichwertige Kunststoffdichtungen.
Die unterschiedliche Bezeichnung bezieht sich auf die Lippe der
Dichtungen
(DL = 2-lippig, DST =3-lippig).
Für Lager einer Abmessung wird nur eine Sorte Dichtung produziert,
diese ist für die jeweilige Type dann Standardausführung.

Lippig translates to flutes. So I guess one has more seal flutes. Man this stuff gets technical.

pearlpower

That is good information and again shows that the DST is a better seal though most seem to run the DL with no issue. This might also explain why my first DL bearing failed as it tossed grease all over the place. I cannot say which seal my DAT bearing has but so far it is holding up with the 180mm pulley.

lowprofile

In the first post, $90 shipped.


Thanks pearlpower and reitmeid for sharing your information. Going by the chart posted both DL and DST have the same load ratings, that is what is important to me.
I have no idea which seal is better for our application but MB decided to use the DL so that is why I chose this particular bearing. Remember the bearing is only spinning when the s/c clutch is not engaged. Therefore, it should not see any high speed operation unless your IATs are high enough to cause the ECU to release the s/c clutch. In that case, you have cooling issues to address.

pearlpower

For anyone wanting the entire Nachi text on the bearings.

http://nachi-tool.jp/bearing/pdf/Tech.pdf#view=Fit

1FastAMG

I know this is old, but in case anybody found this by google like i did, this will be very helpfull.
A supplier of mine can get these bearings no problem. I will pass them on for what im paying plus shipping.

So $65 total.

Andrew
260-402-1357 please text