On Sat, 18 Oct 2008 22:00:54 +1100, "Grumpy"
wrote:


"Michael Koblic" wrote in message
...

wrote in message
...
On Oct 17, 1:58 pm, "Michael Koblic" wrote:
"Wild_Bill" wrote in message

Actually, I do not think they are. Looking at it closely the 5/8 to 1/2
shoulder occurs at the bearing and the inner race seems to be 5/8".

Most ball bearings come in metric sizes. What is the number on the
bearing?

6202Z Asahi Japan


A 6202Z bearing is a common metric deep groove ball bearing with a metal
shield on one side. ( the Z indicates a shield on one side and a ZZ after
the number indicates shields on both sides . An R indicates a polymer seal
and RR indicates sealed both sides)
It has an I.D.of 15 millimetres,an O.D. of 32 millimetres and a thickness of
9 millimetres. It should be readily available at any reasonably good
industrial supplier


That's the 6002. The 6202 is 15mm id x 35mm od x 11mm width. I just
got done ordering one of each from Motion 2 days ago. I had to design
a little stub shaft to replace the Parr reactor seal on a lab reactor.
The Parr design depends on only one bearing, and runs on an o-ring
belt. I need to switch to an HTD belt, so I needed more side load
capability.

Pete Keillor