Feedthrough Model: SS-250-SLAB
Part Number: 103978
Ferrotec’s Ferrofluidic seal Feedthrough Model SS-250-SLAB (part number 103978) is a member of Ferrotec’s Thread Mounted Feedthroughs. The SS-250-SLAB vacuum rotary feedthrough uses Ferrotec’s standard hydrocarbon-based ferrofluid, specifically optimized for introducing rotary motion with a magnetic liquid hermetic seal in most Standard environments.
The SS-250-SLAB vacuum rotary feedthrough features a Solid shaft with Nose (threaded) mounting. Dimensional details are specified below. For precision measurement specifications, refer to the Spec Control Drawing.
Ferrotec Part Number 103978 Dimension Specification Drawing
Specifications for Ferrotec Part Number 103978
Simply Supported (vac+atm sides)
|Shaft (or bore) Diameter with tolerance||0.2497 in|
|Shaft termination||0.030d x 0.40L (flat) in|
|Shaft extension (Vac)||0.75 in|
|Overall length||3.437 in|
|Housing overall length||1.937 in|
|Housing diameter||0.75 in|
|Body length||1.562 in|
|Thread diameter||0.4375 in|
|Thread pitch [tps] or [mm/thd] (metric)||20 [tps]|
|Thread length||0.325 in|
|Recommended mounting bore||7|
|Face seal O-ring||2-015|
|Bearing Dim A||1.3 in|
|Bearing Dim B||1.16 in|
|Shaft Torque Capacity||15.5 in-lb|
|Starting Torque 100rpm *||0.19 in-oz|
|Running Torque 100rpm **||0.11 in-oz|
|Starting Torque 1000rpm *||0.34 in-oz|
|Running Torque 1000rpm **||0.17 in-oz|
|Limiting Speed [rpm]||10000|
|Notes||shaft length can be modified easily|
|Availability:||Normally in stock.|
* See the Drag Torque section of the Determining your Requirements page for the definition of starting torque
** Values are for a feedthrough at room temperature. Under continuous rotation the unit will warm-up, and the running torque will decrease.General vacuum seal specifications can be found on Ferrotec’s Standard Feedthrough Common Specifications page.
For an explanation of Ferrotec’s flange mounting terminology, consult Ferrotec’s Flange Mount Options page.
Ordering Information for Model SS-250-SLAB, Part Number 103978
If you have questions about pricing and availability, need more information about Ferrotec's SS-250-SLAB rotary feedthroughs, or if you have other Ferrofluidic seal requirements, you can submit your request using the form below or contact your Ferrotec representative directly »
Special Orders, Modifications, and Customized Solutions for Unique Applications
Model SS-250-SLAB, Part Number 103978 is a standard model vacuum rotary feedthrough. Ferrotec can also customize a Solid shaft vacuum rotary feedthrough to match your specific application requirements. Please contact Ferrotec for more information.
Please Contact Me Regarding Ferrotec Model Number SS-250-SLAB
Use this form to submit your SS-250-SLAB (part number 103978) inquiry directly to Ferrotec. If you have special requirements or need specific customizations, please include the details in your description.
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