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Standard Rotary Feedthroughs, FRM Series
Description
Thermionics Northwest manufactures a
full line of metal sealed rotary motion feedthroughs. These feedthroughs are designed and manufactured to the highest standard of quality and care in the industry. Our design is conservative, utilizing the same principles as those of our precision feedthrough line. We use welded bellows and all ball bearing construction.
Custom probe lengths and probe extensions are available.
FRM-133-25
Base Schematics
Standard Rotary Feedthrough
FRM-133-25
- 1/4" O.D. probe
- 1.33" or 2.75" O.D. mounting flange
- 360° rotation
- Manual or motorized operation
- Bellows sealed
- Maximum bakeout temperature: 200°C
- Torque limit: 150 oz-in
- 2° graduations, 0° to 360°
- Uses 7 ball bearings
- Position lock
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FRM-133-25
Standard Rotary Feedthrough
FRM-275-38
- 3/8" O.D. probe
- 2.75" O.D. mounting flange
- 360° rotation
- Manual or motorized operation
- Bellows sealed
- Maximum bakeout temperature: 200°C
- Torque limit: 1,100 oz-in
- 2° graduations, 0° to 360°
- Uses 8 ball bearings
- Position lock
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FRM-275-38
Ordering Information
Rotary Motion Feedthroughs
*Add motorization option price to base price.
**Price includes controller. Other motorization options do not include motor controller.
Options
| Option: Custom Length Shaft |
Model Number: /CL |
Price: add Contact / Contact |
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| Option: Mechanical Counter |
Model Number: /MC |
Price: add Contact |
- 5 digit Veeder Root mechanical counter, metal case
- 3.6:1 spur gear drive
- Adjustable counter orientation
- 36 counts per feedthrough rotation
- Removable for bakeout
- Retrofit kit allows mounting without
breaking vacuum
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FRM-133-25/MC (shown with optional /MC mechanical
counter)
| Motorization Options |
/MS Stepper Motor Drive
Model Number: /MS
Price: add Contact-Contact
FRM-133-25/MS (shown with optional /MS stepper motor drive)
Applications: precise positioning, positioning multiple axes at one time, computer-controlled actuation
- Direct drive
- 200 steps per revolution
- 50 oz-in holding torque (higher torque motors available)
- Maximum speed 300 rpm
- Low inertia design
- Manual knob
- Motor controller sold separately
/MY Synchronous Motor Drive
Model Number: /MY
Price: add Contact-Contact
Applications: coarse positioning, continuous rotation
- Single speed, 72 rpm
- 2 directions
- 50 oz-in holding torque (higher torque motors available)
- Low inertia design
- Manual knob
- Motor controller sold separately
/MS/W Stepping or /MY/W Synchronous Motor Drive with High Precision Worm Drive
Model Numbers: /MS/W or /MY/W
Price: add Contact-Contact
- Anti-backlash worm gear drive
- Self-locking
- Manual knob
- Motor controller sold separately
SMC Stepping or YMC Synchronous Motor Controllers
/SCC Speed Control Motor Drive
Model Number: /SCC
Price: add Contact-Contact
FRM-133-25/SCC (shown with optional /SCC speed
control motor drive)
Applications: continuous rotation with variable speed
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