Hello,
I have a couple of Bridgeport design ballscrews that need end bearings, lock nuts, washers and end blocks and I have a few questions about fitting them with the proper components to meet the specifications of the original design.
I'm using them for a custom application and so far I've been unsuccessfull finding this information on the web.
The shaft's dimensions/description:
Inward from End #1:
- 20mm M25 X 1.5 thread
- 73mm of 25mm bare shaft
- 30mm M30 X 1.5 thread
Inward from End #2:
- 40mm of 16mm bare shaft (two flats on end, handwheel adaptation?)
- 18mm of M25 X 1.5 thread
- 26mm of 25mm of bare shaft
Overall length = 93cm
Questions:
1. Does anyone know of a document, have a link for information, or knowledge on this type of Brigdeport ballscrew installation?
2. Does anyone have a similar Bridgeport ballscrew setup? If yes, please share the bearing lock nut, washer specifications and end block information/designs?
In lieu of a better option I am considering building custom blocks using angular contact bearings:
End #1: two - 7305 single row angular contact bearings back to back each pressed into a custom bearing end block with a cut shoulder to add 40mm of space between bearings on the bare shaft. Load the bearings against the block using two ring type lock nuts (25mm and 30mm) not sure if I require washers between the nuts and bearings?
End#2: one - 3305 or 5305 double row angular contact bearing. Load the bearing inside block against the existing shaft shoulder using one 25mm ring type lock nut.
I apologize for the lack of brevity, I know a diagram might be required to explain things more clearly.
Thanks for taking the time to digest this information, help/suggestions of anykind are greatly appreciated.
Larry