Hi Paul, I will happily make a purchase of the bearing type we want.
What I need to verify is the bearing type. The bearing type I requested
a quote on is to the best of my knowledge the appropriate type for our
purposes.

Following your prompt in suggesting we use a deep groove conrad type
bearing assembly, I compared the various constructs available form
several manufacturers using their own comparison charts. So it appears
to me that the deep groove open radial bearing is the best option for
our needs. The static, dynamic, and thrust loads appear to be well
within our tolerances so long as we can hold the bearing securely in place.

Please let me know if you believe a different design is better suited
for the task. I am holding off the salesman for a day or two before
placing an order, at which point, I will likely be waiting a good 6
weeks for delivery.

Here are the general specs being offered for the preferred size 6821
common bearing 105x130x13mm

   Hybrid ceramic Open cage deep groove radial for handling
   longitudinal loads fore and aft.
   440c stainless rings rockwell C 60 +-2. good to 350F
   PTFE cage is the most common for hybrid designs.
   Ball number ranges from 27 for 1/4 balls, to 34 for the smaller balls

   Only one company has given me pricing. $58 each unit but they may
   demand 12 units minimum and have requested we send them $220 extra
   for courier delivery.

   The company is:

   Luoyang rockwellprecision bearing Co., LTD

   TAX:+86-15036573663 <tel:%2B86-15036573663>

   FAX:+379-64152695

   Email: ber345@live.cn

   Web Site: www.rwbearing.com


Ed Carver


I called VXB and the part number is the same as Shanghai Lilly
but it is not Hybrid ceramic. Forget VXB.
We will have to buy direct from shanghai lilly.

http://en.lily-bearing.com/

http://en.lily-bearing.com/about.htm

I'll be going over there in Feb so hold off.

Henry can probably find a distributor in Hong Kong and we will
order them ahead of time and I will bring them back in my
carry on.

Paul Lamar