WOA Series Precision Open Axis Rotary Feedthrough
| Mounting Flange | 275 |
|---|---|
| Probe Length | CL, STANDARD 9.00 |
| DRIVE | MANUAL, FA-W, MS-W |
| ADDITIONAL OPTIONS | /TF-275, RLS, RLSC |
WOA-550/FA
WOA-550
Options
/TF-275 Top Flange
- 2.75” O.D. top flange, replacing the 1.33”O.D.
/CL Custom Length Shaft Option
- 3/4” O.D. stainless steel output tube
- To 24”
/FA Fine Adjust
- Utilizes a precision Klinger stage for rotary actuation
- Three seconds on Klinger stage
- One minute Vernier reading
/FA/W Fine Adjust Worm Drive
- Adds a precision worm gear
- 96:1 (standard), 48:1, 24:1 optional gear ratios
/MS Stepping or /MY Synchronous
Motor Drive
Open Axis
The top flange does not rotate with the tube. The output tube rotates, but not the top flange.
The feedthrough is hollow through the entire shaft. The output shaft is a 3/4” diameter tube with a 0.55” bore clear diameter. The top of the rotary feedthrough has a 1.33” O.D. flange (2.75” O.D. optional).
This open axis feature allows a multi-axis feedthrough to be constructed by stacking multiple WOA feedthroughs atop each other and using smaller and smaller output tubes (see photo). Unlimited coaxial-linear travel is possible by simply adding the appropriate linear feedthrough to the top of this rotary feedthrough. Continuous coaxial-rotary drives are now simpler and more reliable.
The WOA feedthrough demonstrates unique rotary precision. Tests confirm resolution of better than 0.003° with a backlash of less than 0.005° for positioning (no torque load) applications.
Readability
Standard scale
/FA with Vernier
WOA-550 Clear Axis
Rotary Feedthrough
- 3/4” O.D. stainless steel output tube
- 0.55” clear axis up through feedthrough
WOA-550-B Precision
Rotary Feedthrough
- 3/4” O.D. stainless steel output tube
- Without clear axis
EXTS-WOA Shaft Extension
- Precision 3/4” O.D. stainless steel tube
- Split clamp attachment to existing shaft
- Shaft extension length 3” to 24”, as per customer requirements
- With end guide bearing, as required
- Simple field installation or removal
- Mounts to 3/4” O.D. shaft WOA and others
Thermionics manufactures a full line of metal-sealed linear motion feedthroughs. They are designed and manufactured to a high level of quality. They are all metal, using welded bellows and stainless-steel linear bearings. All manual units are bakeable to 200°c fully assembled. Higher bakeouts may be used with partial disassembly. These feedthroughs are available with a number of custom options, listed below.
Custom shaft lengths and shaft extensions are available.