Tracy:

  is there any chance you can attach or send a "to-scale" drawing or graphic of the bearing retainer ring that near the hub on the RD-1B series PSRU. What I am looking for in specific is the bolt hole pattern (and spacing) so that I can better fabricate an attachment that will utilize these bearing retainer bolts.

I have made one such attachment but its a little "snug" and for my second incarnation would like to make it perfect.

The attachment is to hold the electric brush for the IVO on some Aluminum angle.

Dave Staten