Feedthrough Model: HFL-050-NN
Part Number: 133621


Product Description

Ferrotec’s Ferrofluidic seal Feedthrough Model HFL-050-NN (part number 133621) is a member of Ferrotec’s Hollow Shaft Flange Mount Feedthroughs. The HFL-050-NN 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 HFL-050-NN vacuum rotary feedthrough features a Hollow shaft with Ferro Flange mounting. Dimensional details are specified below. For precision measurement specifications, refer to the Spec Control Drawing.

Ferrotec Part Number 133621 Dimension Specification Drawing

Feedthrough Model HFL-050-NN (part number 133621) dimensional specifications drawing

Feedthrough Model HFL-050-NN (part number 133621) image

Product Specifications

Specifications for Ferrotec Part Number 133621

Shaft Hollow Shaft
Shaft Support: Simply Supported (vac+atm sides)
Ferrofluid Standard
Mounting Ferro Flange

Shaft (or bore) Diameter with tolerance 50 (+.025/-0) mm
Shaft extension (Vac) 10 mm
Overall length 82 mm
Housing overall length 62 mm
Housing diameter 95  mm
Body length 62 mm
Recommended shaft diameter 49.98 
Recommended mounting bore 95 (+.02/0) mm
Flange diameter 140 mm
Flange thickness 10 mm
Mounting holes 9.0, 6x on 124.0 bc mm
Flange Type Flange

Bearing Specifications:
Bearing type/material 6912
Bearing Dim A 12.6 mm
Bearing Dim B 55.3 mm
Hollow Shaft bearing dimensional specifications reference drawing

Performance Characteristics:
Starting Torque 100rpm * 750 N-mm
Running Torque 100rpm ** 443 N-mm
Starting Torque 1000rpm * 1360 N-mm
Running Torque 1000rpm ** 682 N-mm
Limiting Speed [rpm] 1695
Notes flange geometry can be modified easily

* 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 HFL-050-NN, Part Number 133621

If you have questions about pricing and availability, need more information about Ferrotec's HFL-050-NN 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 HFL-050-NN, Part Number 133621 is a standard model vacuum rotary feedthrough. Ferrotec can also customize a Hollow shaft vacuum rotary feedthrough to match your specific application requirements. Please contact Ferrotec for more information.

Please Contact Me Regarding Ferrotec Model Number HFL-050-NN

Use this form to submit your HFL-050-NN (part number 133621) inquiry directly to Ferrotec. If you have special requirements or need specific customizations, please include the details in your description.

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