Feedthrough Model: SS-250-SLAB
Part Number: 103978


Product Description

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

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

Feedthrough Model SS-250-SLAB (part number 103978) image

Product Specifications

Specifications for Ferrotec Part Number 103978

Shaft Solid Shaft
Shaft Support: Simply Supported (vac+atm sides)
Ferrofluid Standard
Mounting Nose (threaded)

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
Face seal O-ring 2-015

Bearing Specifications:
Bearing type/material SR4
Bearing Dim A 1.3 in
Bearing Dim B 1.16 in
Solid Shaft bearing dimensional specifications reference drawing

Performance Characteristics:
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.