WOA Series

Precision Open-Axis Rotary Feedthroughs

The WOA rotary feedthrough is an all metal-sealed rotary feedthrough with the unique feature of a 3/4″ rotary tube with a clear axis diameter of 0.55″.   This open axis feature allows a multi-axis feedthrough to be constructed by stacking multiple linear or rotary feedthroughs onto the WOA feedthrough.  A variety of coaxial rotary and/or linear drives can be produced.

Open Axis Rotary Feedthrough WOA-550

• 2.75″ O.D. mounting flange
• 1.33″ O.D. top flange  (2.75″ O.D. optional)
• 3/4″ O.D. stainless steel tube
• 0.55″ clear axis up through feedthrough
• Available without clear axis

Fine Adjust

• Utilizes a precision Newport stage for rotary actuation
• Three seconds on Newport stage
• One minute Vernier reading

Fine Adjust Worm Drive

• Adds a precision worm gear
• 96:1 (standard); 48:1, 24:1 optional gear ratio

Stepping or Synchronous Motor Drive with High Precision Worm Gear

• Anti-backlash worm drive
• Self-locking
• Manual knob
• Motor controller sold separately

Custom Length Tube

• 3/4″ O.D. stainless steel tube
• Up to 24″, flange face-to-tip

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