| |
| Home Page | Mark Forums Read | Today's Posts | My Replies | Classifieds | Reviews | Photo Gallery | Web Links | Share Files | Advertise With Us | Ad List |
| |||||||
| Linear and Rotary Motion Discuss ball/Acme screws, R&P, linear slides and theory here. |
| | |
| This forum is sponsored by: |
 |
| | LinkBack | Thread Tools | Search this Thread | Display Modes |
|
#1
 
08-09-2005, 04:57 PM
| |||
| |||
| Rack and Pinion Hi all, Anybody out there tell me the difference between 141/2 and 20 degree pressure angle? Which is the best for a CNC gantry application? Any good places to purchase on line, I've been around a dozen circles now and still can't find any. Thanks in advance, Mark    |
|
#2
08-09-2005, 05:14 PM
| ||||
| ||||
| There is lots of previous posts on this here, 14 1/2 deg takes a larger load, 20 is a bit higher precision.Probabally 12 diametric pitch is the largest you may want to go with 20 about the smallest. Most large commercial gantrys use 14 1/2. Boston gear offer a economical way to go, In Canada they are carried by Bearing Supply. Al.
__________________ “Logic will get you from A to B. Imagination will take you everywhere.” Albert E. (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management) |
|
| | |
| Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
| Thread Tools | Search this Thread |
| Display Modes | |
| |
| | |
Linear Mode
