Feedthrough Model: SS-375-SLBF
Part Number: 103991


Product Description

Ferrotec’s Ferrofluidic seal Feedthrough Model SS-375-SLBF (part number 103991) is a member of Ferrotec’s Nut-Mount Feedthroughs. The SS-375-SLBF 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-375-SLBF vacuum rotary feedthrough features a Solid shaft with Nut Mounted (threaded body) mounting. Dimensional details are specified below. For precision measurement specifications, refer to the Spec Control Drawing.

Ferrotec Part Number 103991 Dimension Specification Drawing

Feedthrough Model SS-188-SLAA (part number 103971) dimensional specifications drawing

Feedthrough Model SS-375-SLBF (part number 103991) image

Product Specifications

Specifications for Ferrotec Part Number 103991

Shaft Solid Shaft
Shaft Support: Simply Supported (vac+atm sides)
Ferrofluid Standard
Mounting Nut Mounted (threaded body)
Mounting Nut and Washer Included

Shaft (or bore) Diameter with tolerance 0.3748 (+.0002/-.0003) in
Shaft termination .030d x .40L (flat) in
Shaft extension (Vac) 0.75 in
Overall length 3.97 in
Housing overall length 2.47 in
Housing diameter 1.48  in
Body length 2.22 in
Thread diameter 1.5 in
Thread pitch [tps] or [mm/thd] (metric) 12 [tps]
Thread length 1.47 in
Recommended mounting bore 1.525 
Flange diameter 2.12 in
Flange thickness 0.25 in
Face seal O-ring 2-132

Bearing Specifications:
Bearing type/material SR61
Bearing Dim A 1.11 in
Bearing Dim B 1.88 in
Solid Shaft bearing dimensional specifications reference drawing

Performance Characteristics:
Shaft Torque Capacity 67.1 in-lb
Starting Torque 100rpm 0.57 in-oz
Running Torque 100rpm 0.34 in-oz
Starting Torque 1000rpm 1.04 in-oz
Running Torque 1000rpm 0.52 in-oz
Limiting Speed [rpm] 10000
Notes shaft length can be modified easily
Availability: Normally in stock.