Rigaku Americas -- Products -- Vacuum products -- Inch-based models -- Solid shaft, water cooled

Feedthroughs

Inch-based models

Magnetic fluid (ferrofluid) fills a small annular gap between a rotating shaft and a stationary magnetic pole piece. The gap is part of a high-energy magnetic circuit which includes the shaft and pole piece. The very large magnetic flux in the gap exerts a force on the fluid, holding it in place against pressure difference from atmosphere to vacuum, yielding a dynamic rotary seal in which there is no solid friction. Therefore, very long operating lifetimes are achieved.

Because the magnetic fluid has very low vapor pressure, it remains permanently in place for the entire lifetime of the seal, and does not contaminate the system. Some applications have special requirements (high temperature, highly reactive gases) which can be satisfied by selection of the optimum fluid from our family of fluid materials.

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FD-F1-W style

FD (inch) series: Water-cooled solid shaft rotary feedthroughs

Magnetic fluid sealing for high vacuum and other critical process applications

Ferrofluidics direct replacements

FD-BS-W style: Solid shaft, nose mount, water cooled
FD-F1-W style: Solid shaft, flange mount, water cooled
FD-CF-W style: Solid shaft, CF flange, water cooled

FD-BS-W style: Solid shaft, nose mount, water cooled

Style	0.500" Shaft	0.750" Shaft
Style	1.00" Neck
Product No. Model	10C-8914-A FD-BS-0500-W	10C-8916-B FD-BS-0750-W
Max. RPM Torque (lb-in)	10000 380	7000 1400
A(inch) B(inch) C(inch) D(inch)	2.49 1.51 3.56 8.81	2.49 1.51 3.56 8.81
E (inch, 2 places) F (inch)	0.5000/0.4995 2.87	0.7500/0.7495 2.87
G (thread) H (O-ring)	1-14 2-128	1-14 2-128
J (shaft end) 2 places	0.125/0.070/1.00 keyway (w/d/l)	0.1870/.107/1.00 keyway (w/d/l)
K(inch) L(inch)	0.88 1.74	0.89 1.74
M(4 places)	Fitting for 0.25" OD tube
FFC Part No. FFC Model No.	50A-103204 SB-500-AW-072	50A-103206 SB-750-AW-080

FD-F1-W style: solid shaft, flange mount, water cooled

Style	0.500" Shaft 6.00" O-Ring Flange
Product No. Model	10C-8915-B FD-F1-0500-W
Max RPM Torque (lb-in)	10000 380
A (inch) B (inch) C (inch) D (inch)	1.22 .38 3.56 6.03
E (inch, 2 places) F (inch) (hole pattern)	0.5000/0.4995 6.00 (4) x 0.750 dia on 4.750 dia BC
G (inch) H (O-ring)	2.87 2-234
J (end detail) (2 places)	0.125/0.070/1.00 keyway (w/d/l)
M (2 places)	Fitting for 0.25" OD tube
FFC Part No. FFC Model No.	50A-103182 SB-500-FW-057

Other shaft and flange sizes and configurations available
Heavy-duty versions available

FD-CF-W Style: Solid shaft, CF flange, water cooled

Fittings supplied

Style	0.250" Shaft	0.375" Shaft
Style	2.75" CF
Product No. Model	10C-8910-B FD-CF-0250-W	10C-8913-A FD-CF-0375-W
Max RPM Torque (lb-in)	15000 50	10000 160
A (inch) B (inch) C (inch) D (inch)	0.75 0.50 2.56 4.06	0.75 0.50 2.56 4.06
E (inch, 2 places)	0.2500/0.2495	0.3750/0.3745
F (inch) G (inch)	2.75 1.50	2.75 1.50
H (flange)	2.75 CF	2.75 CF
J (shaft end) (2 places)	0.03 x 0.40 flat	0.03 x 0.40 flat
M (2places)	Fitting for 0.25" OD tube
FFC Part No. FFC Model No.	50A-103501 SB-253-BW-148	50A-103912 SB-375-BW-151

To select a feedthrough for a new application, locate the table for the appropriate shaft mounting style (through-hole, flanged, or bore mount). Dimensional and performance information is tabulated and keyed to an outline drawing.

To identify the Magnaseal direct replacement for a Ferrofluidics Corp. product, locate the FFC Part Number/Model Number at the bottom of each column of tabulated data. For FFC products not listed, or for application engineering assistance or information beyond the scope of the tabulated data, please contact Rigaku Vacuum Products.

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