Greaseless ball bearings:

[jamiec]

Greaseless ball bearings: A revolutionary spin on a design that's been around for ages.

Link here http://www.google.com.au/url?sa=t&rc...aMyHk7bY9L14PA

These seem like they would be very good for retro fitting for better efficiency for our project cars Hope some one brings them to market if they prove to be as good as they say.

[redneck]

.

Very interesting...




>

[redpoint5]

What percentage of mechanical energy is lost in all bearings on a typical vehicle? I wouldn't think it is much.

While every little bit helps, I think the main advantage could be low or zero maintenance, and improved reliability. I'd also want these on a bicycle, where the power output is already low, and efficiency is more pronounced.

[oil pan 4]

Since Wheel RPM is only between 700 and 1000 RPM at highway speed the wheel bearing losses are not very large.

[Frank Lee]

Just about all cars and trucks now use roller bearings due to their greater strength. Metros have them on the rear (don't know about the front) and my '59 Chevy has them on the front (don't know about the rear).

[redpoint5]

Originally Posted by oil pan 4

Since Wheel RPM is only between 700 and 1000 RPM at highway speed the wheel bearing losses are not very large.

I'm also thinking about crank shaft, con-rod, and other accessory bearings that could be replaced by these retainer-less bearings.

Originally Posted by Frank Lee

Just about all cars and trucks now use roller bearings due to their greater strength. Metros have them on the rear (don't know about the front) and my '59 Chevy has them on the front (don't know about the rear).

Is there a similar method that can be used in roller bearings to space them out without use of a retainer?

Are conventional roller bearings as efficient as conventional ball bearings?

[botsapper]

The company's site is not that sophisticated considering the yuuuge enormity of improved efficiencies in the most basic mechanics, by adding just a tiny notch.

Korean name, Coo Space CO., LTD, "coo" translates "empty", Empty Space. "...by slowing them down, they speed back up".

¶õ¥¹¥Ú¡¼¥¹

[Frank Lee]

Are conventional roller bearings as efficient as conventional ball bearings?

No. I doubt you'd ever find them on bicycles, which are hypersensitive to bearing drag vs motor vehicles.

[freebeard]

I was skeptical until I looked. Here's why: At one point (1966?) VW front wheel bearings were 'upgraded' to roller bearings. Here's a roller bearing that retrofits the older cars.

So this suggests that I could get the OEM ball bearings and do some 'independent testing of the patent claims' by adding intermittent scuff marks in the outer race.

....for an electric Baja Bug at Bonneville.

[jamiec]

So this suggests that I could get the OEM ball bearings and do some 'independent testing of the patent claims' by adding intermittent scuff marks in the outer race

Would like to see how this goes if you get it done sometime.