Originally Posted by
danielmyers
These are for a newly designed machine. It will be a positioning arm for antenna testing.
The tooth profile is mate to match a Gates GT3 belt. We determined this to be the best option due to the high load requirement of our system.
The ball bearings are 0.75" diameter delrin balls.
We are considering not using a cage to simplify machining. On a previous version of this bearing, we found that the bearing performs adequately without a cage. We may still decide to have a slit similar to what I believe you are describing machined to allow for a cage.
The balls will be loaded by first assembling all but one of the outer segments, then loading the balls and adding the final outer segment.
The segments are not required to be as short as they are now (60 degrees). We do, however need to have at least one removable piece on the outer race for assembly. The idea was to make them short in order to be more efficient with material. We are concerned that cutting a full race with a saw would create a sticking point in the bearing, even if the kerf was small.
We are requesting quantities of 1, 5, and 10 bearings for quotes. This would mean 6, 30, and 60 of the segmented pieces as they are designed now. If you are interested in quoting these parts, let me know and I will send you the drawings and step models for them.